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__gnu_debug::basic_stri..., _Traits, _Allocator >(3cxx)  __gnu_debug::basic_stri..., _Traits, _Allocator >(3cxx)

NAME

       __gnu_debug::basic_string< _CharT, _Traits, _Allocator > - Class std::basic_string with
       safety/checking/debug instrumentation.

SYNOPSIS

       #include <string>

       Inherits __gnu_debug::_Safe_container< _SafeContainer, _Alloc, _SafeBase, _IsCxx11AllocatorAware >, and
       std::basic_string< _CharT, _Traits, _Alloc >.

   Public Types
       typedef _Allocator allocator_type
       typedef __gnu_debug::_Safe_iterator< typename _Base::const_iterator, basic_string > const_iterator
       typedef _Base::const_pointer const_pointer
       typedef _Base::const_reference const_reference
       typedef std::reverse_iterator< const_iterator > const_reverse_iterator
       typedef _Base::difference_type difference_type
       typedef __gnu_debug::_Safe_iterator< typename _Base::iterator, basic_string > iterator
       typedef _Base::pointer pointer
       typedef _Base::reference reference
       typedef std::reverse_iterator< iterator > reverse_iterator
       typedef _Base::size_type size_type
       typedef _Traits traits_type
       typedef _Traits::char_type value_type

   Public Member Functions
       basic_string (_Base &&__base) noexcept
       template<typename _InputIterator> basic_string (_InputIterator __begin, _InputIterator __end, const
           _Allocator &__a=_Allocator())
       basic_string (basic_string &&)=default
       basic_string (basic_string &&__s, const _Allocator &__a) noexcept(std::is_nothrow_constructible< _Base,
           _Base, const _Allocator & >::value)
       basic_string (const _Allocator &__a) noexcept
       basic_string (const _Base &__base)
       basic_string (const _CharT *__s, const _Allocator &__a=_Allocator())
       basic_string (const _CharT *__s, size_type __n, const _Allocator &__a=_Allocator())
       basic_string (const basic_string &)=default
       basic_string (const basic_string &__s, const _Allocator &__a)
       basic_string (const basic_string &__str, size_type __pos, size_type __n=_Base::npos, const _Allocator
           &__a=_Allocator())
       basic_string (size_type __n, _CharT __c, const _Allocator &__a=_Allocator())
       basic_string (std::initializer_list< _CharT > __l, const _Allocator &__a=_Allocator())
       template<typename _Operation> constexpr void __resize_and_overwrite (size_type __n, _Operation __op)
           Non-standard version of resize_and_overwrite for C++11 and above.
       template<typename _Operation> void __resize_and_overwrite (size_type __n, _Operation __op)
           Non-standard version of resize_and_overwrite for C++11 and above.
       const _Base & _M_base () const noexcept
       _Base & _M_base () noexcept
       template<typename _InputIterator> basic_string< _CharT, _Traits, _Alloc > & _M_replace_dispatch (iterator
           __i1, iterator __i2, _InputIterator __k1, _InputIterator __k2, __false_type)
       template<typename _InIterator> _CharT * _S_construct (_InIterator __beg, _InIterator __end, const _Alloc
           &__a, forward_iterator_tag)
       template<typename _InputIterator> basic_string & append (_InputIterator __first, _InputIterator __last)
       basic_string & append (const _CharT *__s)
       basic_string & append (const _CharT *__s, size_type __n)
       basic_string & append (const basic_string &__str)
       basic_string & append (const basic_string &__str, size_type __pos, size_type __n)
       basic_string & append (size_type __n, _CharT __c)
       constexpr basic_string & append (const _CharT *__s, size_type __n)
           Append a C substring.
       constexpr basic_string & append (const basic_string &__str)
           Append a string to this string.
       constexpr basic_string & append (const basic_string &__str, size_type __pos, size_type __n=npos)
           Append a substring.
       constexpr basic_string & append (initializer_list< _CharT > __l)
           Append an initializer_list of characters.
       constexpr basic_string & append (size_type __n, _CharT __c)
           Append multiple characters.
       template<typename _InputIterator> basic_string & assign (_InputIterator __first, _InputIterator __last)
       basic_string & assign (basic_string &&__x) noexcept(noexcept(std::declval< _Base &
           >().assign(std::move(__x))))
       basic_string & assign (const _CharT *__s)
       basic_string & assign (const _CharT *__s, size_type __n)
       basic_string & assign (const basic_string &__str, size_type __pos, size_type __n)
       basic_string & assign (const basic_string &__x)
       basic_string & assign (size_type __n, _CharT __c)
       basic_string & assign (std::initializer_list< _CharT > __l)
       constexpr basic_string & assign (basic_string &&__str) noexcept(_Alloc_traits::_S_nothrow_move())
           Set value to contents of another string.
       constexpr basic_string & assign (const _CharT *__s, size_type __n)
           Set value to a C substring.
       constexpr basic_string & assign (const basic_string &__str)
           Set value to contents of another string.
       constexpr basic_string & assign (const basic_string &__str, size_type __pos, size_type __n=npos)
           Set value to a substring of a string.
       constexpr basic_string & assign (size_type __n, _CharT __c)
           Set value to multiple characters.
       constexpr reference at (size_type __n)
           Provides access to the data contained in the string.
       reference at (size_type __n)
           Provides access to the data contained in the string.
       constexpr const_reference at (size_type __n) const
           Provides access to the data contained in the string.
       const_reference at (size_type __n) const
           Provides access to the data contained in the string.
       constexpr reference at (size_type __n)
           Provides access to the data contained in the string.
       constexpr const_reference at (size_type __n) const
           Provides access to the data contained in the string.
       constexpr const_reference back () const noexcept
       constexpr reference back () noexcept
       iterator begin ()
       const_iterator begin () const noexcept
       const _CharT * c_str () const noexcept
       constexpr size_type capacity () const noexcept
       const_iterator cbegin () const noexcept
       const_iterator cend () const noexcept
       void clear ()
       constexpr int compare (const _CharT *__s) const noexcept
       constexpr int compare (const basic_string &__str) const
           Compare to a string.
       constexpr int compare (size_type __pos, size_type __n, const basic_string &__str) const
           Compare substring to a string.
       int compare (size_type __pos, size_type __n, const basic_string &__str) const
           Compare substring to a string.
       constexpr int compare (size_type __pos, size_type __n1, const _CharT *__s) const
           Compare substring to a C string.
       constexpr int compare (size_type __pos, size_type __n1, const _CharT *__s, size_type __n2) const
           Compare substring against a character array.
       int compare (size_type __pos, size_type __n1, const _CharT *__s, size_type __n2) const
           Compare substring against a character array.
       constexpr int compare (size_type __pos1, size_type __n1, const _CharT *__s) const
       constexpr int compare (size_type __pos1, size_type __n1, const _CharT *__s, size_type __n2) const
       constexpr int compare (size_type __pos1, size_type __n1, const basic_string &__str, size_type __pos2,
           size_type __n2=npos) const
           Compare substring to a substring.
       int compare (size_type __pos1, size_type __n1, const basic_string &__str, size_type __pos2, size_type
           __n2=npos) const
           Compare substring to a substring.
       constexpr int compare (size_type __pos, size_type __n, const basic_string &__str) const
           Compare substring to a string.
       constexpr int compare (size_type __pos, size_type __n1, const _CharT *__s) const
           Compare substring to a C string.
       constexpr int compare (size_type __pos, size_type __n1, const _CharT *__s, size_type __n2) const
           Compare substring against a character array.
       constexpr int compare (size_type __pos1, size_type __n1, const basic_string &__str, size_type __pos2,
           size_type __n2=npos) const
           Compare substring to a substring.
       size_type copy (_CharT *__s, size_type __n, size_type __pos=0) const
       constexpr size_type copy (_CharT *__s, size_type __n, size_type __pos=0) const
           Copy substring into C string.
       const_reverse_iterator crbegin () const noexcept
       const_reverse_iterator crend () const noexcept
       const _CharT * data () const noexcept
       constexpr _CharT * data () noexcept
           Return non-const pointer to contents.
       constexpr bool empty () const noexcept
       iterator end ()
       const_iterator end () const noexcept
       constexpr bool ends_with (_CharT __x) const noexcept
       bool ends_with (_CharT __x) const noexcept
       constexpr bool ends_with (basic_string_view< _CharT, _Traits > __x) const noexcept
       bool ends_with (basic_string_view< _CharT, _Traits > __x) const noexcept
       constexpr bool ends_with (const _CharT *__x) const noexcept
       bool ends_with (const _CharT *__x) const noexcept
       iterator erase (__const_iterator __first, __const_iterator __last)
       iterator erase (__const_iterator __position)
       basic_string & erase (size_type __pos=0, size_type __n=_Base::npos)
       constexpr iterator erase (__const_iterator __first, __const_iterator __last)
           Remove a range of characters.
       constexpr iterator erase (__const_iterator __position)
           Remove one character.
       iterator erase (iterator __first, iterator __last)
           Remove a range of characters.
       iterator erase (iterator __position)
           Remove one character.
       constexpr basic_string & erase (size_type __pos=0, size_type __n=npos)
           Remove characters.
       constexpr size_type find (_CharT __c, size_type __pos=0) const noexcept
           Find position of a character.
       size_type find (_CharT __c, size_type __pos=0) const noexcept
           Find position of a character.
       constexpr size_type find (const _CharT *__s, size_type __pos, size_type __n) const noexcept
       constexpr size_type find (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a C substring.
       size_type find (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a C substring.
       constexpr size_type find (const _CharT *__s, size_type __pos=0) const noexcept
       constexpr size_type find (const _CharT *__s, size_type __pos=0) const noexcept
           Find position of a C string.
       constexpr size_type find (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a string.
       size_type find (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a string.
       constexpr size_type find (_CharT __c, size_type __pos=0) const noexcept
           Find position of a character.
       constexpr size_type find (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a C substring.
       constexpr size_type find (const _CharT *__s, size_type __pos=0) const noexcept
           Find position of a C string.
       constexpr size_type find (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a string.
       constexpr size_type find_first_not_of (_CharT __c, size_type __pos=0) const noexcept
           Find position of a different character.
       size_type find_first_not_of (_CharT __c, size_type __pos=0) const noexcept
           Find position of a different character.
       constexpr size_type find_first_not_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
       constexpr size_type find_first_not_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a character not in C substring.
       size_type find_first_not_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a character not in C substring.
       constexpr size_type find_first_not_of (const _CharT *__s, size_type __pos=0) const noexcept
       constexpr size_type find_first_not_of (const _CharT *__s, size_type __pos=0) const noexcept
           Find position of a character not in C string.
       constexpr size_type find_first_not_of (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a character not in string.
       size_type find_first_not_of (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a character not in string.
       constexpr size_type find_first_not_of (_CharT __c, size_type __pos=0) const noexcept
           Find position of a different character.
       constexpr size_type find_first_not_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a character not in C substring.
       constexpr size_type find_first_not_of (const _CharT *__s, size_type __pos=0) const noexcept
           Find position of a character not in C string.
       constexpr size_type find_first_not_of (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a character not in string.
       constexpr size_type find_first_of (_CharT __c, size_type __pos=0) const noexcept
           Find position of a character.
       size_type find_first_of (_CharT __c, size_type __pos=0) const noexcept
           Find position of a character.
       constexpr size_type find_first_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
       constexpr size_type find_first_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a character of C substring.
       size_type find_first_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a character of C substring.
       constexpr size_type find_first_of (const _CharT *__s, size_type __pos=0) const noexcept
       constexpr size_type find_first_of (const _CharT *__s, size_type __pos=0) const noexcept
           Find position of a character of C string.
       constexpr size_type find_first_of (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a character of string.
       size_type find_first_of (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a character of string.
       constexpr size_type find_first_of (_CharT __c, size_type __pos=0) const noexcept
           Find position of a character.
       constexpr size_type find_first_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find position of a character of C substring.
       constexpr size_type find_first_of (const _CharT *__s, size_type __pos=0) const noexcept
           Find position of a character of C string.
       constexpr size_type find_first_of (const basic_string &__str, size_type __pos=0) const noexcept
           Find position of a character of string.
       constexpr size_type find_last_not_of (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a different character.
       size_type find_last_not_of (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a different character.
       constexpr size_type find_last_not_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
       constexpr size_type find_last_not_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a character not in C substring.
       size_type find_last_not_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a character not in C substring.
       constexpr size_type find_last_not_of (const _CharT *__s, size_type __pos=_Base::npos) const noexcept
       constexpr size_type find_last_not_of (const _CharT *__s, size_type __pos=npos) const noexcept
           Find last position of a character not in C string.
       constexpr size_type find_last_not_of (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a character not in string.
       size_type find_last_not_of (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a character not in string.
       constexpr size_type find_last_not_of (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a different character.
       constexpr size_type find_last_not_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a character not in C substring.
       constexpr size_type find_last_not_of (const _CharT *__s, size_type __pos=npos) const noexcept
           Find last position of a character not in C string.
       constexpr size_type find_last_not_of (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a character not in string.
       constexpr size_type find_last_of (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a character.
       size_type find_last_of (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a character.
       constexpr size_type find_last_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
       constexpr size_type find_last_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a character of C substring.
       size_type find_last_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a character of C substring.
       constexpr size_type find_last_of (const _CharT *__s, size_type __pos=_Base::npos) const noexcept
       constexpr size_type find_last_of (const _CharT *__s, size_type __pos=npos) const noexcept
           Find last position of a character of C string.
       constexpr size_type find_last_of (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a character of string.
       size_type find_last_of (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a character of string.
       constexpr size_type find_last_of (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a character.
       constexpr size_type find_last_of (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a character of C substring.
       constexpr size_type find_last_of (const _CharT *__s, size_type __pos=npos) const noexcept
           Find last position of a character of C string.
       constexpr size_type find_last_of (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a character of string.
       constexpr const_reference front () const noexcept
       constexpr reference front () noexcept
       constexpr allocator_type get_allocator () const noexcept
           Return copy of allocator used to construct this string.
       iterator insert (__const_iterator __p, _CharT __c)
       template<typename _InputIterator> iterator insert (__const_iterator __p, _InputIterator __first,
           _InputIterator __last)
       iterator insert (const_iterator __p, size_type __n, _CharT __c)
       iterator insert (const_iterator __p, std::initializer_list< _CharT > __l)
       basic_string & insert (size_type __pos, const _CharT *__s)
       basic_string & insert (size_type __pos, const _CharT *__s, size_type __n)
       basic_string & insert (size_type __pos, size_type __n, _CharT __c)
       basic_string & insert (size_type __pos1, const basic_string &__str)
       basic_string & insert (size_type __pos1, const basic_string &__str, size_type __pos2, size_type __n)
       constexpr iterator insert (__const_iterator __p, _CharT __c)
           Insert one character.
       template<class _InputIterator, typename = std::_RequireInputIter<_InputIterator>> constexpr iterator
           insert (const_iterator __p, _InputIterator __beg, _InputIterator __end)
           Insert a range of characters.
       constexpr iterator insert (const_iterator __p, initializer_list< _CharT > __l)
           Insert an initializer_list of characters.
       constexpr iterator insert (const_iterator __p, size_type __n, _CharT __c)
           Insert multiple characters.
       iterator insert (iterator __p, _CharT __c)
           Insert one character.
       template<class _InputIterator> void insert (iterator __p, _InputIterator __beg, _InputIterator __end)
           Insert a range of characters.
       void insert (iterator __p, initializer_list< _CharT > __l)
           Insert an initializer_list of characters.
       void insert (iterator __p, size_type __n, _CharT __c)
           Insert multiple characters.
       constexpr basic_string & insert (size_type __pos, const _CharT *__s)
           Insert a C string.
       constexpr basic_string & insert (size_type __pos, const _CharT *__s, size_type __n)
           Insert a C substring.
       constexpr basic_string & insert (size_type __pos, size_type __n, _CharT __c)
           Insert multiple characters.
       constexpr basic_string & insert (size_type __pos1, const basic_string &__str)
           Insert value of a string.
       constexpr basic_string & insert (size_type __pos1, const basic_string &__str, size_type __pos2, size_type
           __n=npos)
           Insert a substring.
       constexpr size_type length () const noexcept
           Returns the number of characters in the string, not including any null-termination.
       constexpr size_type max_size () const noexcept
           Returns the size() of the largest possible string.
       basic_string & operator+= (_CharT __c)
       basic_string & operator+= (const _CharT *__s)
       basic_string & operator+= (const basic_string &__str)
       basic_string & operator+= (std::initializer_list< _CharT > __l)
       constexpr basic_string & operator+= (const basic_string &__str)
           Append a string to this string.
       basic_string & operator= (_CharT __c)
       basic_string & operator= (basic_string &&)=default
       basic_string & operator= (const _CharT *__s)
       basic_string & operator= (const basic_string &)=default
       basic_string & operator= (std::initializer_list< _CharT > __l)
       reference operator[] (size_type __pos)
       const_reference operator[] (size_type __pos) const noexcept
       constexpr reference operator[] (size_type __pos)
           Subscript access to the data contained in the string.
       constexpr const_reference operator[] (size_type __pos) const noexcept
           Subscript access to the data contained in the string.
       void pop_back ()
       void push_back (_CharT __c)
       reverse_iterator rbegin ()
       const_reverse_iterator rbegin () const noexcept
       reverse_iterator rend ()
       const_reverse_iterator rend () const noexcept
       template<typename _InputIterator> basic_string & replace (__const_iterator __i1, __const_iterator __i2,
           _InputIterator __j1, _InputIterator __j2)
       basic_string & replace (__const_iterator __i1, __const_iterator __i2, const _CharT *__s)
       basic_string & replace (__const_iterator __i1, __const_iterator __i2, const _CharT *__s, size_type __n)
       basic_string & replace (__const_iterator __i1, __const_iterator __i2, const basic_string &__str)
       basic_string & replace (__const_iterator __i1, __const_iterator __i2, size_type __n, _CharT __c)
       basic_string & replace (__const_iterator __i1, __const_iterator __i2, std::initializer_list< _CharT >
           __l)
       basic_string & replace (size_type __pos, size_type __n1, const _CharT *__s)
       basic_string & replace (size_type __pos, size_type __n1, const _CharT *__s, size_type __n2)
       basic_string & replace (size_type __pos, size_type __n1, size_type __n2, _CharT __c)
       basic_string & replace (size_type __pos1, size_type __n1, const basic_string &__str)
       basic_string & replace (size_type __pos1, size_type __n1, const basic_string &__str, size_type __pos2,
           size_type __n2)
       constexpr basic_string & replace (__const_iterator __i1, __const_iterator __i2, _CharT *__k1, _CharT
           *__k2)
       constexpr basic_string & replace (__const_iterator __i1, __const_iterator __i2, const _CharT *__k1, const
           _CharT *__k2)
       constexpr basic_string & replace (__const_iterator __i1, __const_iterator __i2, const _CharT *__s)
           Replace range of characters with C string.
       constexpr basic_string & replace (__const_iterator __i1, __const_iterator __i2, const _CharT *__s,
           size_type __n)
           Replace range of characters with C substring.
       constexpr basic_string & replace (__const_iterator __i1, __const_iterator __i2, const basic_string
           &__str)
           Replace range of characters with string.
       constexpr basic_string & replace (__const_iterator __i1, __const_iterator __i2, const_iterator __k1,
           const_iterator __k2)
       constexpr basic_string & replace (__const_iterator __i1, __const_iterator __i2, iterator __k1, iterator
           __k2)
       constexpr basic_string & replace (__const_iterator __i1, __const_iterator __i2, size_type __n, _CharT
           __c)
           Replace range of characters with multiple characters.
       template<class _InputIterator, typename = std::_RequireInputIter<_InputIterator>> constexpr basic_string
           & replace (const_iterator __i1, const_iterator __i2, _InputIterator __k1, _InputIterator __k2)
           Replace range of characters with range.
       constexpr basic_string & replace (const_iterator __i1, const_iterator __i2, initializer_list< _CharT >
           __l)
           Replace range of characters with initializer_list.
       basic_string & replace (iterator __i1, iterator __i2, _CharT *__k1, _CharT *__k2)
       template<class _InputIterator> basic_string & replace (iterator __i1, iterator __i2, _InputIterator __k1,
           _InputIterator __k2)
           Replace range of characters with range.
       basic_string & replace (iterator __i1, iterator __i2, const _CharT *__k1, const _CharT *__k2)
       basic_string & replace (iterator __i1, iterator __i2, const _CharT *__s)
           Replace range of characters with C string.
       basic_string & replace (iterator __i1, iterator __i2, const _CharT *__s, size_type __n)
           Replace range of characters with C substring.
       basic_string & replace (iterator __i1, iterator __i2, const basic_string &__str)
           Replace range of characters with string.
       basic_string & replace (iterator __i1, iterator __i2, const_iterator __k1, const_iterator __k2)
       basic_string & replace (iterator __i1, iterator __i2, initializer_list< _CharT > __l)
           Replace range of characters with initializer_list.
       basic_string & replace (iterator __i1, iterator __i2, iterator __k1, iterator __k2)
       basic_string & replace (iterator __i1, iterator __i2, size_type __n, _CharT __c)
           Replace range of characters with multiple characters.
       constexpr basic_string & replace (size_type __pos, size_type __n, const basic_string &__str)
           Replace characters with value from another string.
       constexpr basic_string & replace (size_type __pos, size_type __n1, const _CharT *__s)
           Replace characters with value of a C string.
       constexpr basic_string & replace (size_type __pos, size_type __n1, const _CharT *__s, size_type __n2)
           Replace characters with value of a C substring.
       constexpr basic_string & replace (size_type __pos, size_type __n1, size_type __n2, _CharT __c)
           Replace characters with multiple characters.
       constexpr basic_string & replace (size_type __pos1, size_type __n1, const basic_string &__str, size_type
           __pos2, size_type __n2=npos)
           Replace characters with value from another string.
       constexpr void reserve ()
       constexpr void reserve (size_type __res_arg)
           Attempt to preallocate enough memory for specified number of characters.
       void reserve (size_type __res_arg)
           Attempt to preallocate enough memory for specified number of characters.
       constexpr void reserve (size_type __res_arg)
           Attempt to preallocate enough memory for specified number of characters.
       void resize (size_type __n)
       void resize (size_type __n, _CharT __c)
       constexpr void resize (size_type __n)
           Resizes the string to the specified number of characters.
       constexpr void resize (size_type __n, _CharT __c)
           Resizes the string to the specified number of characters.
       constexpr size_type rfind (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a character.
       size_type rfind (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a character.
       constexpr size_type rfind (const _CharT *__s, size_type __pos, size_type __n) const
       constexpr size_type rfind (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a C substring.
       size_type rfind (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a C substring.
       constexpr size_type rfind (const _CharT *__s, size_type __pos=_Base::npos) const
       constexpr size_type rfind (const _CharT *__s, size_type __pos=npos) const
           Find last position of a C string.
       constexpr size_type rfind (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a string.
       size_type rfind (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a string.
       constexpr size_type rfind (_CharT __c, size_type __pos=npos) const noexcept
           Find last position of a character.
       constexpr size_type rfind (const _CharT *__s, size_type __pos, size_type __n) const noexcept
           Find last position of a C substring.
       constexpr size_type rfind (const _CharT *__s, size_type __pos=npos) const
           Find last position of a C string.
       constexpr size_type rfind (const basic_string &__str, size_type __pos=npos) const noexcept
           Find last position of a string.
       void shrink_to_fit () noexcept
       constexpr size_type size () const noexcept
           Returns the number of characters in the string, not including any null-termination.
       constexpr bool starts_with (_CharT __x) const noexcept
       bool starts_with (_CharT __x) const noexcept
       constexpr bool starts_with (basic_string_view< _CharT, _Traits > __x) const noexcept
       bool starts_with (basic_string_view< _CharT, _Traits > __x) const noexcept
       constexpr bool starts_with (const _CharT *__x) const noexcept
       bool starts_with (const _CharT *__x) const noexcept
       basic_string substr (size_type __pos=0, size_type __n=_Base::npos) const
       constexpr basic_string substr (size_type __pos=0, size_type __n=npos) const
           Get a substring.
       void swap (basic_string &__x) noexcept(/*conditional */)
       constexpr void swap (basic_string &__s) noexcept
           Swap contents with another string.

   Static Public Attributes
       static const size_type npos
           Value returned by various member functions when they fail.

   Protected Member Functions
       constexpr void _M_swap (_Safe_container &__x) noexcept

   Friends
       template<typename _ItT, typename _SeqT, typename _CatT> class ::__gnu_debug::_Safe_iterator

Detailed Description

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>>
       class __gnu_debug::basic_string< _CharT, _Traits, _Allocator >"Class std::basic_string with
       safety/checking/debug instrumentation.

Member Function Documentation

   template<typename _CharT, typename _Traits, typename _Alloc> template<typename _Operation> void
       std::basic_string< _CharT, _Traits, _Alloc >::__resize_and_overwrite (size_type __n, _Operation __op)
       [constexpr],  [inherited]
       Non-standard version of resize_and_overwrite for C++11 and above.

   template<typename _CharT, typename _Traits, typename _Alloc> template<typename _Operation> void
       std::basic_string< _CharT, _Traits, _Alloc >::__resize_and_overwrite (size_type __n, _Operation __op)
       [inherited]
       Non-standard version of resize_and_overwrite for C++11 and above.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc > &
       std::basic_string< _CharT, _Traits, _Alloc >::append (const _CharT * __s, size_type __n) [inline],
       [constexpr],  [inherited]
       Append a C substring.

       Parameters
           __s The C string to append.
           __n The number of characters to append.

       Returns
           Reference to this string.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc > &
       std::basic_string< _CharT, _Traits, _Alloc >::append (const basic_string< _CharT, _Traits, _Alloc > &
       __str) [inline],  [constexpr],  [inherited]
       Append a string to this string.

       Parameters
           __str The string to append.

       Returns
           Reference to this string.

       Referenced by std::basic_string< _CharT >::append(), std::basic_string< _CharT >::append(),
       std::basic_string< _CharT >::append(), std::basic_string< _CharT >::append(), std::__cxx11::collate<
       _CharT >::do_transform(), std::basic_string< _CharT >::operator+=(), std::basic_string< _CharT
       >::operator+=(), std::basic_string< _CharT >::operator+=(), std::operator>>(), and resize().

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc > &
       std::basic_string< _CharT, _Traits, _Alloc >::append (const basic_string< _CharT, _Traits, _Alloc > &
       __str, size_type __pos, size_type __n = npos) [inline],  [constexpr],  [inherited]
       Append a substring.

       Parameters
           __str The string to append.
           __pos Index of the first character of str to append.
           __n The number of characters to append.

       Returns
           Reference to this string.

       Exceptions
           std::out_of_range if __pos is not a valid index.

       This function appends __n characters from __str starting at __pos to this string. If __n is is larger
       than the number of available characters in __str, the remainder of __str is appended.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::append (initializer_list< _CharT > __l) [inline],  [constexpr],  [inherited]
       Append an initializer_list of characters.

       Parameters
           __l The initializer_list of characters to append.

       Returns
           Reference to this string.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc > &
       std::basic_string< _CharT, _Traits, _Alloc >::append (size_type __n, _CharT __c) [inline],  [constexpr],
       [inherited]
       Append multiple characters.

       Parameters
           __n The number of characters to append.
           __c The character to use.

       Returns
           Reference to this string.

       Appends __n copies of __c to this string.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::assign (basic_string< _CharT, _Traits, _Alloc > && __str) [inline],  [constexpr],
       [noexcept],  [inherited]
       Set value to contents of another string.

       Parameters
           __str Source string to use.

       Returns
           Reference to this string.

       This function sets this string to the exact contents of __str. __str is a valid, but unspecified string.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc > &
       std::basic_string< _CharT, _Traits, _Alloc >::assign (const _CharT * __s, size_type __n) [inline],
       [constexpr],  [inherited]
       Set value to a C substring.

       Parameters
           __s The C string to use.
           __n Number of characters to use.

       Returns
           Reference to this string.

       This function sets the value of this string to the first __n characters of __s. If __n is is larger than
       the number of available characters in __s, the remainder of __s is used.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc > &
       std::basic_string< _CharT, _Traits, _Alloc >::assign (const basic_string< _CharT, _Traits, _Alloc > &
       __str) [inline],  [constexpr],  [inherited]
       Set value to contents of another string.

       Parameters
           __str Source string to use.

       Returns
           Reference to this string.

       Referenced by std::basic_string< _CharT >::assign(), std::basic_string< _CharT >::assign(),
       std::basic_string< _CharT >::assign(), std::basic_string< _CharT >::operator=(), std::basic_string<
       _CharT >::operator=(), std::basic_string< _CharT >::operator=(), std::basic_string< _CharT
       >::operator=(), std::basic_stringbuf< _CharT, _Traits, _Alloc >::overflow(), std::basic_stringbuf< char
       >::str(), and std::basic_stringbuf< char >::str().

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::assign (const basic_string< _CharT, _Traits, _Alloc > & __str, size_type __pos,
       size_type __n = npos) [inline],  [constexpr],  [inherited]
       Set value to a substring of a string.

       Parameters
           __str The string to use.
           __pos Index of the first character of str.
           __n Number of characters to use.

       Returns
           Reference to this string.

       Exceptions
           std::out_of_range if pos is not a valid index.

       This function sets this string to the substring of __str consisting of __n characters at __pos. If __n is
       is larger than the number of available characters in __str, the remainder of __str is used.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::assign (size_type __n, _CharT __c) [inline],  [constexpr],  [inherited]
       Set value to multiple characters.

       Parameters
           __n Length of the resulting string.
           __c The character to use.

       Returns
           Reference to this string.

       This function sets the value of this string to __n copies of character __c.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> reference std::basic_string< _CharT, _Traits, _Allocator >::at (size_type __n)
       [inline],  [nodiscard],  [constexpr]
       Provides access to the data contained in the string.

       Parameters
           __n The index of the character to access.

       Returns
           Read/write reference to the character.

       Exceptions
           std::out_of_range If n is an invalid index.

       This function provides for safer data access. The parameter is first checked that it is in the range of
       the string. The function throws out_of_range if the check fails.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> reference std::basic_string< _CharT, _Traits, _Allocator >::at (size_type __n)
       [inline]
       Provides access to the data contained in the string.

       Parameters
           __n The index of the character to access.

       Returns
           Read/write reference to the character.

       Exceptions
           std::out_of_range If n is an invalid index.

       This function provides for safer data access. The parameter is first checked that it is in the range of
       the string. The function throws out_of_range if the check fails. Success results in unsharing the string.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> const_reference std::basic_string< _CharT, _Traits, _Allocator >::at (size_type
       __n) const [inline],  [nodiscard],  [constexpr]
       Provides access to the data contained in the string.

       Parameters
           __n The index of the character to access.

       Returns
           Read-only (const) reference to the character.

       Exceptions
           std::out_of_range If n is an invalid index.

       This function provides for safer data access. The parameter is first checked that it is in the range of
       the string. The function throws out_of_range if the check fails.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> const_reference std::basic_string< _CharT, _Traits, _Allocator >::at (size_type
       __n) const [inline]
       Provides access to the data contained in the string.

       Parameters
           __n The index of the character to access.

       Returns
           Read-only (const) reference to the character.

       Exceptions
           std::out_of_range If n is an invalid index.

       This function provides for safer data access. The parameter is first checked that it is in the range of
       the string. The function throws out_of_range if the check fails.

   template<typename _CharT, typename _Traits, typename _Alloc> reference std::basic_string< _CharT, _Traits,
       _Alloc >::at (size_type __n) [inline],  [nodiscard],  [constexpr],  [inherited]
       Provides access to the data contained in the string.

       Parameters
           __n The index of the character to access.

       Returns
           Read/write reference to the character.

       Exceptions
           std::out_of_range If n is an invalid index.

       This function provides for safer data access. The parameter is first checked that it is in the range of
       the string. The function throws out_of_range if the check fails.

   template<typename _CharT, typename _Traits, typename _Alloc> const_reference std::basic_string< _CharT,
       _Traits, _Alloc >::at (size_type __n) const [inline],  [nodiscard],  [constexpr],  [inherited]
       Provides access to the data contained in the string.

       Parameters
           __n The index of the character to access.

       Returns
           Read-only (const) reference to the character.

       Exceptions
           std::out_of_range If n is an invalid index.

       This function provides for safer data access. The parameter is first checked that it is in the range of
       the string. The function throws out_of_range if the check fails.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> const_reference std::basic_string< _CharT, _Traits, _Allocator >::back () const
       [inline],  [nodiscard],  [constexpr],  [noexcept]
       Returns a read-only (constant) reference to the data at the last element of the string.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> reference std::basic_string< _CharT, _Traits, _Allocator >::back () [inline],
       [nodiscard],  [constexpr],  [noexcept]
       Returns a read/write reference to the data at the last element of the string.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::capacity () const
       [inline],  [nodiscard],  [constexpr],  [noexcept]
       Returns the total number of characters that the string can hold before needing to allocate more memory.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> int std::basic_string< _CharT, _Traits, _Allocator >::compare (const
       basic_string< _CharT, _Traits, _Allocator > & __str) const [inline],  [nodiscard],  [constexpr]
       Compare to a string.

       Parameters
           __str String to compare against.

       Returns
           Integer < 0, 0, or > 0.

       Returns an integer < 0 if this string is ordered before __str, 0 if their values are equivalent, or > 0
       if this string is ordered after __str. Determines the effective length rlen of the strings to compare as
       the smallest of size() and str.size(). The function then compares the two strings by calling
       traits::compare(data(), str.data(),rlen). If the result of the comparison is nonzero returns it,
       otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> int std::basic_string< _CharT, _Traits, _Allocator >::compare (size_type __pos,
       size_type __n, const basic_string< _CharT, _Traits, _Allocator > & __str) const [inline],  [nodiscard],
       [constexpr]
       Compare substring to a string.

       Parameters
           __pos Index of first character of substring.
           __n Number of characters in substring.
           __str String to compare against.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n characters starting at __pos. Returns an integer < 0 if
       the substring is ordered before __str, 0 if their values are equivalent, or > 0 if the substring is
       ordered after __str. Determines the effective length rlen of the strings to compare as the smallest of
       the length of the substring and __str.size(). The function then compares the two strings by calling
       traits::compare(substring.data(),str.data(),rlen). If the result of the comparison is nonzero returns it,
       otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> int std::basic_string< _CharT, _Traits, _Allocator >::compare (size_type __pos,
       size_type __n, const basic_string< _CharT, _Traits, _Allocator > & __str) const [inline]
       Compare substring to a string.

       Parameters
           __pos Index of first character of substring.
           __n Number of characters in substring.
           __str String to compare against.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n characters starting at __pos. Returns an integer < 0 if
       the substring is ordered before __str, 0 if their values are equivalent, or > 0 if the substring is
       ordered after __str. Determines the effective length rlen of the strings to compare as the smallest of
       the length of the substring and __str.size(). The function then compares the two strings by calling
       traits::compare(substring.data(),str.data(),rlen). If the result of the comparison is nonzero returns it,
       otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> int std::basic_string< _CharT, _Traits, _Allocator >::compare (size_type __pos,
       size_type __n1, const _CharT * __s) const [inline],  [nodiscard],  [constexpr]
       Compare substring to a C string.

       Parameters
           __pos Index of first character of substring.
           __n1 Number of characters in substring.
           __s C string to compare against.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n1 characters starting at pos. Returns an integer < 0 if the
       substring is ordered before __s, 0 if their values are equivalent, or > 0 if the substring is ordered
       after __s. Determines the effective length rlen of the strings to compare as the smallest of the length
       of the substring and the length of a string constructed from __s. The function then compares the two
       string by calling traits::compare(substring.data(),__s,rlen). If the result of the comparison is nonzero
       returns it, otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> int std::basic_string< _CharT, _Traits, _Allocator >::compare (size_type __pos,
       size_type __n1, const _CharT * __s, size_type __n2) const [inline],  [nodiscard],  [constexpr]
       Compare substring against a character array.

       Parameters
           __pos Index of first character of substring.
           __n1 Number of characters in substring.
           __s character array to compare against.
           __n2 Number of characters of s.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n1 characters starting at __pos. Form a string from the
       first __n2 characters of __s. Returns an integer < 0 if this substring is ordered before the string from
       __s, 0 if their values are equivalent, or > 0 if this substring is ordered after the string from __s.
       Determines the effective length rlen of the strings to compare as the smallest of the length of the
       substring and __n2. The function then compares the two strings by calling
       traits::compare(substring.data(),s,rlen). If the result of the comparison is nonzero returns it,
       otherwise the shorter one is ordered first.

       NB: s must have at least n2 characters, '\0' has no special meaning.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> int std::basic_string< _CharT, _Traits, _Allocator >::compare (size_type __pos,
       size_type __n1, const _CharT * __s, size_type __n2) const [inline]
       Compare substring against a character array.

       Parameters
           __pos Index of first character of substring.
           __n1 Number of characters in substring.
           __s character array to compare against.
           __n2 Number of characters of s.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n1 characters starting at __pos. Form a string from the
       first __n2 characters of __s. Returns an integer < 0 if this substring is ordered before the string from
       __s, 0 if their values are equivalent, or > 0 if this substring is ordered after the string from __s.
       Determines the effective length rlen of the strings to compare as the smallest of the length of the
       substring and __n2. The function then compares the two strings by calling
       traits::compare(substring.data(),s,rlen). If the result of the comparison is nonzero returns it,
       otherwise the shorter one is ordered first.

       NB: s must have at least n2 characters, '\0' has no special meaning.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> int std::basic_string< _CharT, _Traits, _Allocator >::compare (size_type __pos1,
       size_type __n1, const basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos2, size_type
       __n2 = npos) const [inline],  [nodiscard],  [constexpr]
       Compare substring to a substring.

       Parameters
           __pos1 Index of first character of substring.
           __n1 Number of characters in substring.
           __str String to compare against.
           __pos2 Index of first character of substring of str.
           __n2 Number of characters in substring of str.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n1 characters starting at __pos1. Form the substring of
       __str from the __n2 characters starting at __pos2. Returns an integer < 0 if this substring is ordered
       before the substring of __str, 0 if their values are equivalent, or > 0 if this substring is ordered
       after the substring of __str. Determines the effective length rlen of the strings to compare as the
       smallest of the lengths of the substrings. The function then compares the two strings by calling
       traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). If the result of the comparison is
       nonzero returns it, otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> int std::basic_string< _CharT, _Traits, _Allocator >::compare (size_type __pos1,
       size_type __n1, const basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos2, size_type
       __n2 = npos) const [inline]
       Compare substring to a substring.

       Parameters
           __pos1 Index of first character of substring.
           __n1 Number of characters in substring.
           __str String to compare against.
           __pos2 Index of first character of substring of str.
           __n2 Number of characters in substring of str.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n1 characters starting at __pos1. Form the substring of
       __str from the __n2 characters starting at __pos2. Returns an integer < 0 if this substring is ordered
       before the substring of __str, 0 if their values are equivalent, or > 0 if this substring is ordered
       after the substring of __str. Determines the effective length rlen of the strings to compare as the
       smallest of the lengths of the substrings. The function then compares the two strings by calling
       traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). If the result of the comparison is
       nonzero returns it, otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits, typename _Alloc> int std::basic_string< _CharT, _Traits, _Alloc
       >::compare (size_type __pos, size_type __n, const basic_string< _CharT, _Traits, _Alloc > & __str) const
       [inline],  [nodiscard],  [constexpr],  [inherited]
       Compare substring to a string.

       Parameters
           __pos Index of first character of substring.
           __n Number of characters in substring.
           __str String to compare against.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n characters starting at __pos. Returns an integer < 0 if
       the substring is ordered before __str, 0 if their values are equivalent, or > 0 if the substring is
       ordered after __str. Determines the effective length rlen of the strings to compare as the smallest of
       the length of the substring and __str.size(). The function then compares the two strings by calling
       traits::compare(substring.data(),str.data(),rlen). If the result of the comparison is nonzero returns it,
       otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits, typename _Alloc> int std::basic_string< _CharT, _Traits, _Alloc
       >::compare (size_type __pos, size_type __n1, const _CharT * __s) const [inline],  [nodiscard],
       [constexpr],  [inherited]
       Compare substring to a C string.

       Parameters
           __pos Index of first character of substring.
           __n1 Number of characters in substring.
           __s C string to compare against.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n1 characters starting at pos. Returns an integer < 0 if the
       substring is ordered before __s, 0 if their values are equivalent, or > 0 if the substring is ordered
       after __s. Determines the effective length rlen of the strings to compare as the smallest of the length
       of the substring and the length of a string constructed from __s. The function then compares the two
       string by calling traits::compare(substring.data(),__s,rlen). If the result of the comparison is nonzero
       returns it, otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits, typename _Alloc> int std::basic_string< _CharT, _Traits, _Alloc
       >::compare (size_type __pos, size_type __n1, const _CharT * __s, size_type __n2) const [inline],
       [nodiscard],  [constexpr],  [inherited]
       Compare substring against a character array.

       Parameters
           __pos Index of first character of substring.
           __n1 Number of characters in substring.
           __s character array to compare against.
           __n2 Number of characters of s.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n1 characters starting at __pos. Form a string from the
       first __n2 characters of __s. Returns an integer < 0 if this substring is ordered before the string from
       __s, 0 if their values are equivalent, or > 0 if this substring is ordered after the string from __s.
       Determines the effective length rlen of the strings to compare as the smallest of the length of the
       substring and __n2. The function then compares the two strings by calling
       traits::compare(substring.data(),s,rlen). If the result of the comparison is nonzero returns it,
       otherwise the shorter one is ordered first.

       NB: s must have at least n2 characters, '\0' has no special meaning.

   template<typename _CharT, typename _Traits, typename _Alloc> int std::basic_string< _CharT, _Traits, _Alloc
       >::compare (size_type __pos1, size_type __n1, const basic_string< _CharT, _Traits, _Alloc > & __str,
       size_type __pos2, size_type __n2 = npos) const [inline],  [nodiscard],  [constexpr],  [inherited]
       Compare substring to a substring.

       Parameters
           __pos1 Index of first character of substring.
           __n1 Number of characters in substring.
           __str String to compare against.
           __pos2 Index of first character of substring of str.
           __n2 Number of characters in substring of str.

       Returns
           Integer < 0, 0, or > 0.

       Form the substring of this string from the __n1 characters starting at __pos1. Form the substring of
       __str from the __n2 characters starting at __pos2. Returns an integer < 0 if this substring is ordered
       before the substring of __str, 0 if their values are equivalent, or > 0 if this substring is ordered
       after the substring of __str. Determines the effective length rlen of the strings to compare as the
       smallest of the lengths of the substrings. The function then compares the two strings by calling
       traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). If the result of the comparison is
       nonzero returns it, otherwise the shorter one is ordered first.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::copy (_CharT * __s, size_type __n, size_type
       __pos = 0) const [constexpr],  [inherited]
       Copy substring into C string.

       Parameters
           __s C string to copy value into.
           __n Number of characters to copy.
           __pos Index of first character to copy.

       Returns
           Number of characters actually copied

       Exceptions
           std::out_of_range If __pos > size().

       Copies up to __n characters starting at __pos into the C string __s. If __pos is greater than size(),
       out_of_range is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> _CharT * std::basic_string< _CharT, _Traits,
       _Alloc >::data () [inline],  [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Return non-const pointer to contents. This is a pointer to the character sequence held by the string.
       Modifying the characters in the sequence is allowed.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> bool std::basic_string< _CharT, _Traits, _Allocator >::empty () const [inline],
       [nodiscard],  [constexpr],  [noexcept]
       Returns true if the string is empty. Equivalent to *this == "".

   template<typename _CharT, typename _Traits, typename _Alloc> iterator std::basic_string< _CharT, _Traits,
       _Alloc >::erase (__const_iterator __first, __const_iterator __last) [inline],  [constexpr],  [inherited]
       Remove a range of characters.

       Parameters
           __first Iterator referencing the first character to remove.
           __last Iterator referencing the end of the range.

       Returns
           Iterator referencing location of first after removal.

       Removes the characters in the range [first,last) from this string. The value of the string doesn't change
       if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> iterator std::basic_string< _CharT, _Traits,
       _Alloc >::erase (__const_iterator __position) [inline],  [constexpr],  [inherited]
       Remove one character.

       Parameters
           __position Iterator referencing the character to remove.

       Returns
           iterator referencing same location after removal.

       Removes the character at __position from this string. The value of the string doesn't change if an error
       is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::iterator std::basic_string< _CharT, _Traits, _Alloc >::erase (iterator __first, iterator __last)
       [inherited]
       Remove a range of characters.

       Parameters
           __first Iterator referencing the first character to remove.
           __last Iterator referencing the end of the range.

       Returns
           Iterator referencing location of first after removal.

       Removes the characters in the range [first,last) from this string. The value of the string doesn't change
       if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> iterator std::basic_string< _CharT, _Traits,
       _Alloc >::erase (iterator __position) [inline],  [inherited]
       Remove one character.

       Parameters
           __position Iterator referencing the character to remove.

       Returns
           iterator referencing same location after removal.

       Removes the character at __position from this string. The value of the string doesn't change if an error
       is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::erase (size_type __pos = 0, size_type __n = npos) [inline],  [constexpr],  [inherited]

       Remove characters.

       Parameters
           __pos Index of first character to remove (default 0).
           __n Number of characters to remove (default remainder).

       Returns
           Reference to this string.

       Exceptions
           std::out_of_range If pos is beyond the end of this string.

       Removes __n characters from this string starting at __pos. The length of the string is reduced by __n. If
       there are < __n characters to remove, the remainder of the string is truncated. If __p is beyond end of
       string, out_of_range is thrown. The value of the string doesn't change if an error is thrown.

       Referenced by std::getline(), std::operator>>(), std::basic_string< _CharT >::pop_back(), and resize().

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find (_CharT __c,
       size_type __pos = 0) const [nodiscard],  [constexpr],  [noexcept]
       Find position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find (_CharT __c,
       size_type __pos = 0) const [noexcept]
       Find position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find (const _CharT *
       __s, size_type __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept]
       Find position of a C substring.

       Parameters
           __s C string to locate.
           __pos Index of character to search from.
           __n Number of characters from s to search for.

       Returns
           Index of start of first occurrence.

       Starting from __pos, searches forward for the first __n characters in __s within this string. If found,
       returns the index where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find (const _CharT *
       __s, size_type __pos, size_type __n) const [noexcept]
       Find position of a C substring.

       Parameters
           __s C string to locate.
           __pos Index of character to search from.
           __n Number of characters from s to search for.

       Returns
           Index of start of first occurrence.

       Starting from __pos, searches forward for the first __n characters in __s within this string. If found,
       returns the index where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find (const _CharT *
       __s, size_type __pos = 0) const [inline],  [nodiscard],  [constexpr],  [noexcept]
       Find position of a C string.

       Parameters
           __s C string to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of start of first occurrence.

       Starting from __pos, searches forward for the value of __s within this string. If found, returns the
       index where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find (const
       basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = 0) const [inline],  [nodiscard],
       [constexpr],  [noexcept]
       Find position of a string.

       Parameters
           __str String to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of start of first occurrence.

       Starting from __pos, searches forward for value of __str within this string. If found, returns the index
       where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find (const
       basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = 0) const [inline],  [noexcept]
       Find position of a string.

       Parameters
           __str String to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of start of first occurrence.

       Starting from __pos, searches forward for value of __str within this string. If found, returns the index
       where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find (_CharT __c, size_type __pos = 0) const
       [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

       References npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find (const _CharT * __s, size_type __pos,
       size_type __n) const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find position of a C substring.

       Parameters
           __s C string to locate.
           __pos Index of character to search from.
           __n Number of characters from s to search for.

       Returns
           Index of start of first occurrence.

       Starting from __pos, searches forward for the first __n characters in __s within this string. If found,
       returns the index where it begins. If not found, returns npos.

       References std::data(), npos, and std::size().

       Referenced by std::basic_string< _CharT >::find(), std::basic_string< _CharT >::find(),
       std::basic_string< _CharT >::find(), and std::basic_string< _CharT >::find_first_of().

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find (const _CharT * __s, size_type __pos = 0) const [inline],  [nodiscard],  [constexpr],
       [noexcept],  [inherited]
       Find position of a C string.

       Parameters
           __s C string to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of start of first occurrence.

       Starting from __pos, searches forward for the value of __s within this string. If found, returns the
       index where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find (const basic_string< _CharT, _Traits, _Alloc > & __str, size_type __pos = 0) const
       [inline],  [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find position of a string.

       Parameters
           __str String to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of start of first occurrence.

       Starting from __pos, searches forward for value of __str within this string. If found, returns the index
       where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_not_of
       (_CharT __c, size_type __pos = 0) const [nodiscard],  [constexpr],  [noexcept]
       Find position of a different character.

       Parameters
           __c Character to avoid.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character other than __c within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_not_of
       (_CharT __c, size_type __pos = 0) const [noexcept]
       Find position of a different character.

       Parameters
           __c Character to avoid.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character other than __c within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_not_of
       (const _CharT * __s, size_type __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept]
       Find position of a character not in C substring.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search from.
           __n Number of characters from __s to consider.

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character not contained in the first __n characters of __s
       within this string. If found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_not_of
       (const _CharT * __s, size_type __pos, size_type __n) const [noexcept]
       Find position of a character not in C substring.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search from.
           __n Number of characters from __s to consider.

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character not contained in the first __n characters of __s
       within this string. If found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_not_of
       (const _CharT * __s, size_type __pos = 0) const [inline],  [nodiscard],  [constexpr],  [noexcept]
       Find position of a character not in C string.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character not contained in __s within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_not_of
       (const basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = 0) const [inline],
       [nodiscard],  [constexpr],  [noexcept]
       Find position of a character not in string.

       Parameters
           __str String containing characters to avoid.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character not contained in __str within this string. If
       found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_not_of
       (const basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = 0) const [inline],
       [noexcept]
       Find position of a character not in string.

       Parameters
           __str String containing characters to avoid.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character not contained in __str within this string. If
       found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_not_of (_CharT __c, size_type __pos
       = 0) const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find position of a different character.

       Parameters
           __c Character to avoid.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character other than __c within this string. If found,
       returns the index where it was found. If not found, returns npos.

       References npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_not_of (const _CharT * __s,
       size_type __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find position of a character not in C substring.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search from.
           __n Number of characters from __s to consider.

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character not contained in the first __n characters of __s
       within this string. If found, returns the index where it was found. If not found, returns npos.

       References npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_first_not_of (const _CharT * __s, size_type __pos = 0) const [inline],  [nodiscard],
       [constexpr],  [noexcept],  [inherited]
       Find position of a character not in C string.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character not contained in __s within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_first_not_of (const basic_string< _CharT, _Traits, _Alloc > & __str, size_type __pos = 0)
       const [inline],  [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find position of a character not in string.

       Parameters
           __str String containing characters to avoid.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for a character not contained in __str within this string. If
       found, returns the index where it was found. If not found, returns npos.

       Referenced by std::basic_string< _CharT >::find_first_not_of(), std::basic_string< _CharT
       >::find_first_not_of(), and std::basic_string< _CharT >::find_first_not_of().

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_of (_CharT
       __c, size_type __pos = 0) const [inline],  [nodiscard],  [constexpr],  [noexcept]
       Find position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for the character __c within this string. If found, returns the
       index where it was found. If not found, returns npos.

       Note: equivalent to find(__c, __pos).

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_of (_CharT
       __c, size_type __pos = 0) const [inline],  [noexcept]
       Find position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for the character __c within this string. If found, returns the
       index where it was found. If not found, returns npos.

       Note: equivalent to find(__c, __pos).

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_of (const
       _CharT * __s, size_type __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept]
       Find position of a character of C substring.

       Parameters
           __s String containing characters to locate.
           __pos Index of character to search from.
           __n Number of characters from s to search for.

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for one of the first __n characters of __s within this string. If
       found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_of (const
       _CharT * __s, size_type __pos, size_type __n) const [noexcept]
       Find position of a character of C substring.

       Parameters
           __s String containing characters to locate.
           __pos Index of character to search from.
           __n Number of characters from s to search for.

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for one of the first __n characters of __s within this string. If
       found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_of (const
       _CharT * __s, size_type __pos = 0) const [inline],  [nodiscard],  [constexpr],  [noexcept]
       Find position of a character of C string.

       Parameters
           __s String containing characters to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for one of the characters of __s within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_of (const
       basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = 0) const [inline],  [nodiscard],
       [constexpr],  [noexcept]
       Find position of a character of string.

       Parameters
           __str String containing characters to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for one of the characters of __str within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_first_of (const
       basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = 0) const [inline],  [noexcept]
       Find position of a character of string.

       Parameters
           __str String containing characters to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for one of the characters of __str within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_first_of (_CharT __c, size_type __pos = 0) const [inline],  [nodiscard],  [constexpr],
       [noexcept],  [inherited]
       Find position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for the character __c within this string. If found, returns the
       index where it was found. If not found, returns npos.

       Note: equivalent to find(__c, __pos).

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_of (const _CharT * __s, size_type
       __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find position of a character of C substring.

       Parameters
           __s String containing characters to locate.
           __pos Index of character to search from.
           __n Number of characters from s to search for.

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for one of the first __n characters of __s within this string. If
       found, returns the index where it was found. If not found, returns npos.

       References npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_first_of (const _CharT * __s, size_type __pos = 0) const [inline],  [nodiscard],
       [constexpr],  [noexcept],  [inherited]
       Find position of a character of C string.

       Parameters
           __s String containing characters to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for one of the characters of __s within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_first_of (const basic_string< _CharT, _Traits, _Alloc > & __str, size_type __pos = 0)
       const [inline],  [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find position of a character of string.

       Parameters
           __str String containing characters to locate.
           __pos Index of character to search from (default 0).

       Returns
           Index of first occurrence.

       Starting from __pos, searches forward for one of the characters of __str within this string. If found,
       returns the index where it was found. If not found, returns npos.

       Referenced by std::basic_string< _CharT >::find_first_of(), and std::basic_string< _CharT
       >::find_first_of().

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_not_of
       (_CharT __c, size_type __pos = npos) const [nodiscard],  [constexpr],  [noexcept]
       Find last position of a different character.

       Parameters
           __c Character to avoid.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character other than __c within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_not_of
       (_CharT __c, size_type __pos = npos) const [noexcept]
       Find last position of a different character.

       Parameters
           __c Character to avoid.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character other than __c within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_not_of
       (const _CharT * __s, size_type __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept]
       Find last position of a character not in C substring.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search back from.
           __n Number of characters from s to consider.

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character not contained in the first __n characters of __s
       within this string. If found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_not_of
       (const _CharT * __s, size_type __pos, size_type __n) const [noexcept]
       Find last position of a character not in C substring.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search back from.
           __n Number of characters from s to consider.

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character not contained in the first __n characters of __s
       within this string. If found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_not_of
       (const _CharT * __s, size_type __pos = npos) const [inline],  [nodiscard],  [constexpr],  [noexcept]
       Find last position of a character not in C string.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character not contained in __s within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_not_of
       (const basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = npos) const [inline],
       [nodiscard],  [constexpr],  [noexcept]
       Find last position of a character not in string.

       Parameters
           __str String containing characters to avoid.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character not contained in __str within this string. If
       found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_not_of
       (const basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = npos) const [inline],
       [noexcept]
       Find last position of a character not in string.

       Parameters
           __str String containing characters to avoid.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character not contained in __str within this string. If
       found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_not_of (_CharT __c, size_type __pos
       = npos) const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find last position of a different character.

       Parameters
           __c Character to avoid.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character other than __c within this string. If found,
       returns the index where it was found. If not found, returns npos.

       References npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_not_of (const _CharT * __s,
       size_type __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find last position of a character not in C substring.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search back from.
           __n Number of characters from s to consider.

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character not contained in the first __n characters of __s
       within this string. If found, returns the index where it was found. If not found, returns npos.

       References npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_last_not_of (const _CharT * __s, size_type __pos = npos) const [inline],  [nodiscard],
       [constexpr],  [noexcept],  [inherited]
       Find last position of a character not in C string.

       Parameters
           __s C string containing characters to avoid.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character not contained in __s within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_last_not_of (const basic_string< _CharT, _Traits, _Alloc > & __str, size_type __pos =
       npos) const [inline],  [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find last position of a character not in string.

       Parameters
           __str String containing characters to avoid.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for a character not contained in __str within this string. If
       found, returns the index where it was found. If not found, returns npos.

       Referenced by std::basic_string< _CharT >::find_last_not_of(), std::basic_string< _CharT
       >::find_last_not_of(), and std::basic_string< _CharT >::find_last_not_of().

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_of (_CharT
       __c, size_type __pos = npos) const [inline],  [nodiscard],  [constexpr],  [noexcept]
       Find last position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

       Note: equivalent to rfind(__c, __pos).

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_of (_CharT
       __c, size_type __pos = npos) const [inline],  [noexcept]
       Find last position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

       Note: equivalent to rfind(__c, __pos).

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_of (const
       _CharT * __s, size_type __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept]
       Find last position of a character of C substring.

       Parameters
           __s C string containing characters to locate.
           __pos Index of character to search back from.
           __n Number of characters from s to search for.

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for one of the first __n characters of __s within this string. If
       found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_of (const
       _CharT * __s, size_type __pos, size_type __n) const [noexcept]
       Find last position of a character of C substring.

       Parameters
           __s C string containing characters to locate.
           __pos Index of character to search back from.
           __n Number of characters from s to search for.

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for one of the first __n characters of __s within this string. If
       found, returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_of (const
       _CharT * __s, size_type __pos = npos) const [inline],  [nodiscard],  [constexpr],  [noexcept]
       Find last position of a character of C string.

       Parameters
           __s C string containing characters to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for one of the characters of __s within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_of (const
       basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = npos) const [inline],
       [nodiscard],  [constexpr],  [noexcept]
       Find last position of a character of string.

       Parameters
           __str String containing characters to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for one of the characters of __str within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::find_last_of (const
       basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = npos) const [inline],  [noexcept]
       Find last position of a character of string.

       Parameters
           __str String containing characters to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for one of the characters of __str within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_last_of (_CharT __c, size_type __pos = npos) const [inline],  [nodiscard],  [constexpr],
       [noexcept],  [inherited]
       Find last position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

       Note: equivalent to rfind(__c, __pos).

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_of (const _CharT * __s, size_type
       __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find last position of a character of C substring.

       Parameters
           __s C string containing characters to locate.
           __pos Index of character to search back from.
           __n Number of characters from s to search for.

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for one of the first __n characters of __s within this string. If
       found, returns the index where it was found. If not found, returns npos.

       References npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_last_of (const _CharT * __s, size_type __pos = npos) const [inline],  [nodiscard],
       [constexpr],  [noexcept],  [inherited]
       Find last position of a character of C string.

       Parameters
           __s C string containing characters to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for one of the characters of __s within this string. If found,
       returns the index where it was found. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::find_last_of (const basic_string< _CharT, _Traits, _Alloc > & __str, size_type __pos = npos)
       const [inline],  [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find last position of a character of string.

       Parameters
           __str String containing characters to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for one of the characters of __str within this string. If found,
       returns the index where it was found. If not found, returns npos.

       Referenced by std::basic_string< _CharT >::find_last_of(), and std::basic_string< _CharT
       >::find_last_of().

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> const_reference std::basic_string< _CharT, _Traits, _Allocator >::front () const
       [inline],  [nodiscard],  [constexpr],  [noexcept]
       Returns a read-only (constant) reference to the data at the first element of the string.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> reference std::basic_string< _CharT, _Traits, _Allocator >::front () [inline],
       [nodiscard],  [constexpr],  [noexcept]
       Returns a read/write reference to the data at the first element of the string.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> allocator_type std::basic_string< _CharT, _Traits, _Allocator >::get_allocator ()
       const [inline],  [nodiscard],  [constexpr],  [noexcept]
       Return copy of allocator used to construct this string.

   template<typename _CharT, typename _Traits, typename _Alloc> iterator std::basic_string< _CharT, _Traits,
       _Alloc >::insert (__const_iterator __p, _CharT __c) [inline],  [constexpr],  [inherited]
       Insert one character.

       Parameters
           __p Iterator referencing position in string to insert at.
           __c The character to insert.

       Returns
           Iterator referencing newly inserted char.

       Exceptions
           std::length_error If new length exceeds max_size().

       Inserts character __c at position referenced by __p. If adding character causes the length to exceed
       max_size(), length_error is thrown. If __p is beyond end of string, out_of_range is thrown. The value of
       the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> template<class _InputIterator, typename =
       std::_RequireInputIter<_InputIterator>> iterator std::basic_string< _CharT, _Traits, _Alloc >::insert
       (const_iterator __p, _InputIterator __beg, _InputIterator __end) [inline],  [constexpr],  [inherited]
       Insert a range of characters.

       Parameters
           __p Const_iterator referencing location in string to insert at.
           __beg Start of range.
           __end End of range.

       Returns
           Iterator referencing the first inserted char.

       Exceptions
           std::length_error If new length exceeds max_size().

       Inserts characters in range [beg,end). If adding characters causes the length to exceed max_size(),
       length_error is thrown. The value of the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> iterator std::basic_string< _CharT, _Traits,
       _Alloc >::insert (const_iterator __p, initializer_list< _CharT > __l) [inline],  [constexpr],
       [inherited]
       Insert an initializer_list of characters.

       Parameters
           __p Iterator referencing location in string to insert at.
           __l The initializer_list of characters to insert.

       Exceptions
           std::length_error If new length exceeds max_size().

   template<typename _CharT, typename _Traits, typename _Alloc> iterator std::basic_string< _CharT, _Traits,
       _Alloc >::insert (const_iterator __p, size_type __n, _CharT __c) [inline],  [constexpr],  [inherited]
       Insert multiple characters.

       Parameters
           __p Const_iterator referencing location in string to insert at.
           __n Number of characters to insert
           __c The character to insert.

       Returns
           Iterator referencing the first inserted char.

       Exceptions
           std::length_error If new length exceeds max_size().

       Inserts __n copies of character __c starting at the position referenced by iterator __p. If adding
       characters causes the length to exceed max_size(), length_error is thrown. The value of the string
       doesn't change if an error is thrown.

       Referenced by std::basic_string< _CharT >::insert(), std::basic_string< _CharT >::insert(),
       std::basic_string< _CharT >::insert(), std::basic_string< _CharT >::insert(), and std::basic_string<
       _CharT >::insert().

   template<typename _CharT, typename _Traits, typename _Alloc> iterator std::basic_string< _CharT, _Traits,
       _Alloc >::insert (iterator __p, _CharT __c) [inline],  [inherited]
       Insert one character.

       Parameters
           __p Iterator referencing position in string to insert at.
           __c The character to insert.

       Returns
           Iterator referencing newly inserted char.

       Exceptions
           std::length_error If new length exceeds max_size().

       Inserts character __c at position referenced by __p. If adding character causes the length to exceed
       max_size(), length_error is thrown. If __p is beyond end of string, out_of_range is thrown. The value of
       the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> template<class _InputIterator> void
       std::basic_string< _CharT, _Traits, _Alloc >::insert (iterator __p, _InputIterator __beg, _InputIterator
       __end) [inline],  [inherited]
       Insert a range of characters.

       Parameters
           __p Iterator referencing location in string to insert at.
           __beg Start of range.
           __end End of range.

       Exceptions
           std::length_error If new length exceeds max_size().

       Inserts characters in range [__beg,__end). If adding characters causes the length to exceed max_size(),
       length_error is thrown. The value of the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> void std::basic_string< _CharT, _Traits, _Alloc
       >::insert (iterator __p, initializer_list< _CharT > __l) [inline],  [inherited]
       Insert an initializer_list of characters.

       Parameters
           __p Iterator referencing location in string to insert at.
           __l The initializer_list of characters to insert.

       Exceptions
           std::length_error If new length exceeds max_size().

   template<typename _CharT, typename _Traits, typename _Alloc> void std::basic_string< _CharT, _Traits, _Alloc
       >::insert (iterator __p, size_type __n, _CharT __c) [inline],  [inherited]
       Insert multiple characters.

       Parameters
           __p Iterator referencing location in string to insert at.
           __n Number of characters to insert
           __c The character to insert.

       Exceptions
           std::length_error If new length exceeds max_size().

       Inserts __n copies of character __c starting at the position referenced by iterator __p. If adding
       characters causes the length to exceed max_size(), length_error is thrown. The value of the string
       doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::insert (size_type __pos, const _CharT * __s) [inline],  [constexpr],  [inherited]
       Insert a C string.

       Parameters
           __pos Position in string to insert at.
           __s The C string to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().
           std::out_of_range If pos is beyond the end of this string.

       Inserts the first n characters of __s starting at __pos. If adding characters causes the length to exceed
       max_size(), length_error is thrown. If __pos is beyond end(), out_of_range is thrown. The value of the
       string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc > &
       std::basic_string< _CharT, _Traits, _Alloc >::insert (size_type __pos, const _CharT * __s, size_type __n)
       [inline],  [constexpr],  [inherited]
       Insert a C substring.

       Parameters
           __pos Position in string to insert at.
           __s The C string to insert.
           __n The number of characters to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().
           std::out_of_range If __pos is beyond the end of this string.

       Inserts the first __n characters of __s starting at __pos. If adding characters causes the length to
       exceed max_size(), length_error is thrown. If __pos is beyond end(), out_of_range is thrown. The value of
       the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::insert (size_type __pos, size_type __n, _CharT __c) [inline],  [constexpr],
       [inherited]
       Insert multiple characters.

       Parameters
           __pos Index in string to insert at.
           __n Number of characters to insert
           __c The character to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().
           std::out_of_range If __pos is beyond the end of this string.

       Inserts __n copies of character __c starting at index __pos. If adding characters causes the length to
       exceed max_size(), length_error is thrown. If __pos > length(), out_of_range is thrown. The value of the
       string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::insert (size_type __pos1, const basic_string< _CharT, _Traits, _Alloc > & __str)
       [inline],  [constexpr],  [inherited]
       Insert value of a string.

       Parameters
           __pos1 Position in string to insert at.
           __str The string to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Inserts value of __str starting at __pos1. If adding characters causes the length to exceed max_size(),
       length_error is thrown. The value of the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::insert (size_type __pos1, const basic_string< _CharT, _Traits, _Alloc > & __str,
       size_type __pos2, size_type __n = npos) [inline],  [constexpr],  [inherited]
       Insert a substring.

       Parameters
           __pos1 Position in string to insert at.
           __str The string to insert.
           __pos2 Start of characters in str to insert.
           __n Number of characters to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().
           std::out_of_range If pos1 > size() or __pos2 > str.size().

       Starting at pos1, insert __n character of __str beginning with __pos2. If adding characters causes the
       length to exceed max_size(), length_error is thrown. If __pos1 is beyond the end of this string or __pos2
       is beyond the end of __str, out_of_range is thrown. The value of the string doesn't change if an error is
       thrown.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::length () const
       [inline],  [nodiscard],  [constexpr],  [noexcept]
       Returns the number of characters in the string, not including any null-termination.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::max_size () const
       [inline],  [nodiscard],  [constexpr],  [noexcept]
       Returns the size() of the largest possible string.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::operator+= (const basic_string< _CharT, _Traits, _Alloc > & __str) [inline],
       [constexpr],  [inherited]
       Append a string to this string.

       Parameters
           __str The string to append.

       Returns
           Reference to this string.

   template<typename _CharT, typename _Traits, typename _Alloc> reference std::basic_string< _CharT, _Traits,
       _Alloc >::operator[] (size_type __pos) [inline],  [nodiscard],  [constexpr],  [inherited]
       Subscript access to the data contained in the string.

       Parameters
           __pos The index of the character to access.

       Returns
           Read/write reference to the character.

       This operator allows for easy, array-style, data access. Note that data access with this operator is
       unchecked and out_of_range lookups are not defined. (For checked lookups see at().)

   template<typename _CharT, typename _Traits, typename _Alloc> const_reference std::basic_string< _CharT,
       _Traits, _Alloc >::operator[] (size_type __pos) const [inline],  [nodiscard],  [constexpr],  [noexcept],
       [inherited]
       Subscript access to the data contained in the string.

       Parameters
           __pos The index of the character to access.

       Returns
           Read-only (constant) reference to the character.

       This operator allows for easy, array-style, data access. Note that data access with this operator is
       unchecked and out_of_range lookups are not defined. (For checked lookups see at().)

       Referenced by std::basic_string< _CharT >::back(), std::basic_string< _CharT >::back(),
       std::basic_string< _CharT >::back(), std::basic_string< _CharT >::front(), std::basic_string< _CharT
       >::front(), and std::basic_string< _CharT >::front().

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (__const_iterator __i1, __const_iterator __i2, const _CharT * __s) [inline],
       [constexpr],  [inherited]
       Replace range of characters with C string.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __s C string value to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, the characters of __s are inserted. If the
       length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an
       error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (__const_iterator __i1, __const_iterator __i2, const _CharT * __s, size_type
       __n) [inline],  [constexpr],  [inherited]
       Replace range of characters with C substring.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __s C string value to insert.
           __n Number of characters from s to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, the first __n characters of __s are inserted.
       If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't
       change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (__const_iterator __i1, __const_iterator __i2, const basic_string< _CharT,
       _Traits, _Alloc > & __str) [inline],  [constexpr],  [inherited]
       Replace range of characters with string.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __str String value to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, the value of __str is inserted. If the length
       of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error
       is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (__const_iterator __i1, __const_iterator __i2, size_type __n, _CharT __c)
       [inline],  [constexpr],  [inherited]
       Replace range of characters with multiple characters.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __n Number of characters to insert.
           __c Character to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, __n copies of __c are inserted. If the length
       of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error
       is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> template<class _InputIterator, typename =
       std::_RequireInputIter<_InputIterator>> basic_string & std::basic_string< _CharT, _Traits, _Alloc
       >::replace (const_iterator __i1, const_iterator __i2, _InputIterator __k1, _InputIterator __k2) [inline],
       [constexpr],  [inherited]
       Replace range of characters with range.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __k1 Iterator referencing start of range to insert.
           __k2 Iterator referencing end of range to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, characters in the range [__k1,__k2) are
       inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string
       doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (const_iterator __i1, const_iterator __i2, initializer_list< _CharT > __l)
       [inline],  [constexpr],  [inherited]
       Replace range of characters with initializer_list.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __l The initializer_list of characters to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, characters in the range [__k1,__k2) are
       inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string
       doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> template<class _InputIterator> basic_string &
       std::basic_string< _CharT, _Traits, _Alloc >::replace (iterator __i1, iterator __i2, _InputIterator __k1,
       _InputIterator __k2) [inline],  [inherited]
       Replace range of characters with range.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __k1 Iterator referencing start of range to insert.
           __k2 Iterator referencing end of range to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, characters in the range [__k1,__k2) are
       inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string
       doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (iterator __i1, iterator __i2, const _CharT * __s) [inline],  [inherited]
       Replace range of characters with C string.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __s C string value to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, the characters of __s are inserted. If the
       length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an
       error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (iterator __i1, iterator __i2, const _CharT * __s, size_type __n) [inline],
       [inherited]
       Replace range of characters with C substring.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __s C string value to insert.
           __n Number of characters from s to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, the first __n characters of __s are inserted.
       If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't
       change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (iterator __i1, iterator __i2, const basic_string< _CharT, _Traits, _Alloc > &
       __str) [inline],  [inherited]
       Replace range of characters with string.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __str String value to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, the value of __str is inserted. If the length
       of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error
       is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (iterator __i1, iterator __i2, initializer_list< _CharT > __l) [inline],
       [inherited]
       Replace range of characters with initializer_list.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __l The initializer_list of characters to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, characters in the range [__k1,__k2) are
       inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string
       doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (iterator __i1, iterator __i2, size_type __n, _CharT __c) [inline],
       [inherited]
       Replace range of characters with multiple characters.

       Parameters
           __i1 Iterator referencing start of range to replace.
           __i2 Iterator referencing end of range to replace.
           __n Number of characters to insert.
           __c Character to insert.

       Returns
           Reference to this string.

       Exceptions
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__i1,__i2). In place, __n copies of __c are inserted. If the length
       of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error
       is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (size_type __pos, size_type __n, const basic_string< _CharT, _Traits, _Alloc >
       & __str) [inline],  [constexpr],  [inherited]
       Replace characters with value from another string.

       Parameters
           __pos Index of first character to replace.
           __n Number of characters to be replaced.
           __str String to insert.

       Returns
           Reference to this string.

       Exceptions
           std::out_of_range If pos is beyond the end of this string.
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__pos,__pos+__n) from this string. In place, the value of __str is
       inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of the result exceeds
       max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

       Referenced by std::basic_string< _CharT >::append(), std::basic_string< _CharT >::assign(),
       std::basic_string< _CharT >::insert(), std::basic_string< _CharT >::insert(), std::basic_string< _CharT
       >::insert(), std::basic_string< _CharT >::insert(), std::basic_string< _CharT >::insert(),
       std::basic_string< _CharT >::insert(), std::basic_string< _CharT >::insert(), std::basic_string< _CharT
       >::insert(), std::basic_string< _CharT >::replace(), std::basic_string< _CharT >::replace(),
       std::basic_string< _CharT >::replace(), std::basic_string< _CharT >::replace(), std::basic_string< _CharT
       >::replace(), std::basic_string< _CharT >::replace(), std::basic_string< _CharT >::replace(),
       std::basic_string< _CharT >::replace(), std::basic_string< _CharT >::replace(), std::basic_string< _CharT
       >::replace(), and std::basic_string< _CharT >::replace().

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (size_type __pos, size_type __n1, const _CharT * __s) [inline],  [constexpr],
       [inherited]
       Replace characters with value of a C string.

       Parameters
           __pos Index of first character to replace.
           __n1 Number of characters to be replaced.
           __s C string to insert.

       Returns
           Reference to this string.

       Exceptions
           std::out_of_range If pos > size().
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__pos,__pos + __n1) from this string. In place, the characters of
       __s are inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of result
       exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc > &
       std::basic_string< _CharT, _Traits, _Alloc >::replace (size_type __pos, size_type __n1, const _CharT *
       __s, size_type __n2) [inline],  [constexpr],  [inherited]
       Replace characters with value of a C substring.

       Parameters
           __pos Index of first character to replace.
           __n1 Number of characters to be replaced.
           __s C string to insert.
           __n2 Number of characters from s to use.

       Returns
           Reference to this string.

       Exceptions
           std::out_of_range If pos1 > size().
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__pos,__pos + __n1) from this string. In place, the first __n2
       characters of __s are inserted, or all of __s if __n2 is too large. If __pos is beyond end of string,
       out_of_range is thrown. If the length of result exceeds max_size(), length_error is thrown. The value of
       the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (size_type __pos, size_type __n1, size_type __n2, _CharT __c) [inline],
       [constexpr],  [inherited]
       Replace characters with multiple characters.

       Parameters
           __pos Index of first character to replace.
           __n1 Number of characters to be replaced.
           __n2 Number of characters to insert.
           __c Character to insert.

       Returns
           Reference to this string.

       Exceptions
           std::out_of_range If __pos > size().
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [pos,pos + n1) from this string. In place, __n2 copies of __c are
       inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of result exceeds
       max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string & std::basic_string< _CharT,
       _Traits, _Alloc >::replace (size_type __pos1, size_type __n1, const basic_string< _CharT, _Traits, _Alloc
       > & __str, size_type __pos2, size_type __n2 = npos) [inline],  [constexpr],  [inherited]
       Replace characters with value from another string.

       Parameters
           __pos1 Index of first character to replace.
           __n1 Number of characters to be replaced.
           __str String to insert.
           __pos2 Index of first character of str to use.
           __n2 Number of characters from str to use.

       Returns
           Reference to this string.

       Exceptions
           std::out_of_range If __pos1 > size() or __pos2 > __str.size().
           std::length_error If new length exceeds max_size().

       Removes the characters in the range [__pos1,__pos1 + n) from this string. In place, the value of __str is
       inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of the result exceeds
       max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> void std::basic_string< _CharT, _Traits, _Allocator >::reserve () [constexpr]
       Equivalent to shrink_to_fit().

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> void std::basic_string< _CharT, _Traits, _Allocator >::reserve (size_type
       __res_arg) [constexpr]
       Attempt to preallocate enough memory for specified number of characters.

       Parameters
           __res_arg Number of characters required.

       Exceptions
           std::length_error If __res_arg exceeds max_size().

       This function attempts to reserve enough memory for the string to hold the specified number of
       characters. If the number requested is more than max_size(), length_error is thrown.

       The advantage of this function is that if optimal code is a necessity and the user can determine the
       string length that will be required, the user can reserve the memory in advance, and thus prevent a
       possible reallocation of memory and copying of string data.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> void std::basic_string< _CharT, _Traits, _Allocator >::reserve (size_type
       __res_arg)
       Attempt to preallocate enough memory for specified number of characters.

       Parameters
           __res_arg Number of characters required.

       Exceptions
           std::length_error If __res_arg exceeds max_size().

       This function attempts to reserve enough memory for the string to hold the specified number of
       characters. If the number requested is more than max_size(), length_error is thrown.

       The advantage of this function is that if optimal code is a necessity and the user can determine the
       string length that will be required, the user can reserve the memory in advance, and thus prevent a
       possible reallocation of memory and copying of string data.

   template<typename _CharT, typename _Traits, typename _Alloc> void std::basic_string< _CharT, _Traits, _Alloc
       >::reserve (size_type __res_arg) [constexpr],  [inherited]
       Attempt to preallocate enough memory for specified number of characters.

       Parameters
           __res_arg Number of characters required.

       Exceptions
           std::length_error If __res_arg exceeds max_size().

       This function attempts to reserve enough memory for the string to hold the specified number of
       characters. If the number requested is more than max_size(), length_error is thrown.

       The advantage of this function is that if optimal code is a necessity and the user can determine the
       string length that will be required, the user can reserve the memory in advance, and thus prevent a
       possible reallocation of memory and copying of string data.

       References capacity(), get_allocator(), and std::size().

       Referenced by std::num_get< _CharT, _InIter >::do_get(), std::num_get< _CharT, _InIter >::do_get(),
       std::num_get< _CharT, _InIter >::do_get(), std::tr2::operator>>(), and std::basic_stringbuf< _CharT,
       _Traits, _Alloc >::overflow().

   template<typename _CharT, typename _Traits, typename _Alloc> void std::basic_string< _CharT, _Traits, _Alloc
       >::resize (size_type __n) [inline],  [constexpr],  [inherited]
       Resizes the string to the specified number of characters.

       Parameters
           __n Number of characters the string should contain.

       This function will resize the string to the specified length. If the new size is smaller than the
       string's current size the string is truncated, otherwise the string is extended and new characters are
       default-constructed. For basic types such as char, this means setting them to 0.

   template<typename _CharT, typename _Traits, typename _Alloc> void std::basic_string< _CharT, _Traits, _Alloc
       >::resize (size_type __n, _CharT __c) [constexpr],  [inherited]
       Resizes the string to the specified number of characters.

       Parameters
           __n Number of characters the string should contain.
           __c Character to fill any new elements.

       This function will resize the string to the specified number of characters. If the number is smaller than
       the string's current size the string is truncated, otherwise the string is extended and new elements are
       set to __c.

       References append(), erase(), and size().

       Referenced by std::basic_string< _CharT >::resize().

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::rfind (_CharT __c,
       size_type __pos = npos) const [nodiscard],  [constexpr],  [noexcept]
       Find last position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::rfind (_CharT __c,
       size_type __pos = npos) const [noexcept]
       Find last position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::rfind (const _CharT *
       __s, size_type __pos, size_type __n) const [nodiscard],  [constexpr],  [noexcept]
       Find last position of a C substring.

       Parameters
           __s C string to locate.
           __pos Index of character to search back from.
           __n Number of characters from s to search for.

       Returns
           Index of start of last occurrence.

       Starting from __pos, searches backward for the first __n characters in __s within this string. If found,
       returns the index where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::rfind (const _CharT *
       __s, size_type __pos, size_type __n) const [noexcept]
       Find last position of a C substring.

       Parameters
           __s C string to locate.
           __pos Index of character to search back from.
           __n Number of characters from s to search for.

       Returns
           Index of start of last occurrence.

       Starting from __pos, searches backward for the first __n characters in __s within this string. If found,
       returns the index where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::rfind (const _CharT *
       __s, size_type __pos = npos) const [inline],  [nodiscard],  [constexpr]
       Find last position of a C string.

       Parameters
           __s C string to locate.
           __pos Index of character to start search at (default end).

       Returns
           Index of start of last occurrence.

       Starting from __pos, searches backward for the value of __s within this string. If found, returns the
       index where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::rfind (const
       basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = npos) const [inline],
       [nodiscard],  [constexpr],  [noexcept]
       Find last position of a string.

       Parameters
           __str String to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of start of last occurrence.

       Starting from __pos, searches backward for value of __str within this string. If found, returns the index
       where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::rfind (const
       basic_string< _CharT, _Traits, _Allocator > & __str, size_type __pos = npos) const [inline],  [noexcept]
       Find last position of a string.

       Parameters
           __str String to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of start of last occurrence.

       Starting from __pos, searches backward for value of __str within this string. If found, returns the index
       where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::rfind (_CharT __c, size_type __pos = npos)
       const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find last position of a character.

       Parameters
           __c Character to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of last occurrence.

       Starting from __pos, searches backward for __c within this string. If found, returns the index where it
       was found. If not found, returns npos.

       References npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string< _CharT, _Traits, _Alloc
       >::size_type std::basic_string< _CharT, _Traits, _Alloc >::rfind (const _CharT * __s, size_type __pos,
       size_type __n) const [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find last position of a C substring.

       Parameters
           __s C string to locate.
           __pos Index of character to search back from.
           __n Number of characters from s to search for.

       Returns
           Index of start of last occurrence.

       Starting from __pos, searches backward for the first __n characters in __s within this string. If found,
       returns the index where it begins. If not found, returns npos.

       References std::min(), npos, and std::size().

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::rfind (const _CharT * __s, size_type __pos = npos) const [inline],  [nodiscard],  [constexpr],
       [inherited]
       Find last position of a C string.

       Parameters
           __s C string to locate.
           __pos Index of character to start search at (default end).

       Returns
           Index of start of last occurrence.

       Starting from __pos, searches backward for the value of __s within this string. If found, returns the
       index where it begins. If not found, returns npos.

   template<typename _CharT, typename _Traits, typename _Alloc> size_type std::basic_string< _CharT, _Traits,
       _Alloc >::rfind (const basic_string< _CharT, _Traits, _Alloc > & __str, size_type __pos = npos) const
       [inline],  [nodiscard],  [constexpr],  [noexcept],  [inherited]
       Find last position of a string.

       Parameters
           __str String to locate.
           __pos Index of character to search back from (default end).

       Returns
           Index of start of last occurrence.

       Starting from __pos, searches backward for value of __str within this string. If found, returns the index
       where it begins. If not found, returns npos.

       Referenced by std::basic_string< _CharT >::find_last_of(), std::basic_string< _CharT >::rfind(),
       std::basic_string< _CharT >::rfind(), std::basic_string< _CharT >::rfind(), and std::basic_string< _CharT
       >::rfind().

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> size_type std::basic_string< _CharT, _Traits, _Allocator >::size () const
       [inline],  [nodiscard],  [constexpr],  [noexcept]
       Returns the number of characters in the string, not including any null-termination.

   template<typename _CharT, typename _Traits, typename _Alloc> basic_string std::basic_string< _CharT, _Traits,
       _Alloc >::substr (size_type __pos = 0, size_type __n = npos) const [inline],  [nodiscard],  [constexpr],
       [inherited]
       Get a substring.

       Parameters
           __pos Index of first character (default 0).
           __n Number of characters in substring (default remainder).

       Returns
           The new string.

       Exceptions
           std::out_of_range If __pos > size().

       Construct and return a new string using the __n characters starting at __pos. If the string is too short,
       use the remainder of the characters. If __pos is beyond the end of the string, out_of_range is thrown.

   template<typename _CharT, typename _Traits, typename _Alloc> void std::basic_string< _CharT, _Traits, _Alloc
       >::swap (basic_string< _CharT, _Traits, _Alloc > & __s) [constexpr],  [noexcept],  [inherited]
       Swap contents with another string.

       Parameters
           __s String to swap with.

       Exchanges the contents of this string with that of __s in constant time.

       References basic_string(), and get_allocator().

       Referenced by std::basic_string< _CharT >::assign(), and std::basic_string< _CharT >::operator=().

Member Data Documentation

   template<typename _CharT, typename _Traits = std::char_traits<_CharT>, typename _Allocator =
       std::allocator<_CharT>> const size_type std::basic_string< _CharT, _Traits, _Allocator >::npos [static]
       Value returned by various member functions when they fail.

Author

       Generated automatically by Doxygen for libstdc++ from the source code.

                                                    libst__gnu_debug::basic_stri..., _Traits, _Allocator >(3cxx)