Provided by: libstdc++-13-doc_13.2.0-23ubuntu4_all 
NAME
std::numpunct< _CharT > - Primary class template numpunct.
SYNOPSIS
#include <locale>
Inherits std::locale::facet.
Inherited by std::numpunct_byname< _CharT >.
Public Types
typedef __numpunct_cache< _CharT > __cache_type
typedef _CharT char_type
Public typedefs.
typedef basic_string< _CharT > string_type
Public typedefs.
Public Member Functions
numpunct (__c_locale __cloc, size_t __refs=0)
Internal constructor. Not for general use.
numpunct (__cache_type *__cache, size_t __refs=0)
Internal constructor. Not for general use.
numpunct (size_t __refs=0)
Numpunct constructor.
char_type decimal_point () const
Return decimal point character.
string_type falsename () const
Return string representation of bool false.
string grouping () const
Return grouping specification.
char_type thousands_sep () const
Return thousands separator character.
string_type truename () const
Return string representation of bool true.
Static Public Attributes
static locale::id id
Numpunct facet id.
Protected Member Functions
virtual ~numpunct ()
Destructor.
void _M_initialize_numpunct (__c_locale __cloc)
void _M_initialize_numpunct (__c_locale __cloc)
void _M_initialize_numpunct (__c_locale __cloc=0)
virtual char_type do_decimal_point () const
Return decimal point character.
virtual string_type do_falsename () const
Return string representation of bool false.
virtual string do_grouping () const
Return grouping specification.
virtual char_type do_thousands_sep () const
Return thousands separator character.
virtual string_type do_truename () const
Return string representation of bool true.
Static Protected Member Functions
static __c_locale _S_clone_c_locale (__c_locale &__cloc) throw ()
static void _S_create_c_locale (__c_locale &__cloc, const char *__s, __c_locale __old=0)
static void _S_destroy_c_locale (__c_locale &__cloc)
static __c_locale _S_get_c_locale ()
static const char * _S_get_c_name () throw ()
static __c_locale _S_lc_ctype_c_locale (__c_locale __cloc, const char *__s)
Protected Attributes
__cache_type * _M_data
Detailed Description
template<typename _CharT>
class std::numpunct< _CharT >"Primary class template numpunct.
This facet stores several pieces of information related to printing and scanning numbers,
such as the decimal point character. It takes a template parameter specifying the char
type. The numpunct facet is used by streams for many I/O operations involving numbers.
The numpunct template uses protected virtual functions to provide the actual results. The
public accessors forward the call to the virtual functions. These virtual functions are
hooks for developers to implement the behavior they require from a numpunct facet.
Member Typedef Documentation
template<typename _CharT > typedef _CharT std::numpunct< _CharT >::char_type
Public typedefs.
template<typename _CharT > typedef basic_string<_CharT> std::numpunct< _CharT >::string_type
Public typedefs.
Constructor & Destructor Documentation
template<typename _CharT > std::numpunct< _CharT >::numpunct (size_t __refs = 0) [inline],
[explicit]
Numpunct constructor.
Parameters
__refs Refcount to pass to the base class.
template<typename _CharT > std::numpunct< _CharT >::numpunct (__cache_type * __cache, size_t
__refs = 0) [inline], [explicit]
Internal constructor. Not for general use. This is a constructor for use by the library
itself to set up the predefined locale facets.
Parameters
__cache __numpunct_cache object.
__refs Refcount to pass to the base class.
template<typename _CharT > std::numpunct< _CharT >::numpunct (__c_locale __cloc, size_t __refs
= 0) [inline], [explicit]
Internal constructor. Not for general use. This is a constructor for use by the library
itself to set up new locales.
Parameters
__cloc The C locale.
__refs Refcount to pass to the base class.
template<typename _CharT > virtual std::numpunct< _CharT >::~numpunct () [protected],
[virtual]
Destructor.
Member Function Documentation
template<typename _CharT > char_type std::numpunct< _CharT >::decimal_point () const [inline]
Return decimal point character. This function returns a char_type to use as a decimal
point. It does so by returning returning numpunct<char_type>::do_decimal_point().
Returns
char_type representing a decimal point.
References std::numpunct< _CharT >::do_decimal_point().
template<typename _CharT > virtual char_type std::numpunct< _CharT >::do_decimal_point ()
const [inline], [protected], [virtual]
Return decimal point character. Returns a char_type to use as a decimal point. This
function is a hook for derived classes to change the value returned.
Returns
char_type representing a decimal point.
Referenced by std::numpunct< _CharT >::decimal_point().
template<typename _CharT > virtual string_type std::numpunct< _CharT >::do_falsename () const
[inline], [protected], [virtual]
Return string representation of bool false. Returns a string_type containing the text
representation for false bool variables. This function is a hook for derived classes to
change the value returned.
Returns
string_type representing printed form of false.
Referenced by std::numpunct< _CharT >::falsename().
template<typename _CharT > virtual string std::numpunct< _CharT >::do_grouping () const
[inline], [protected], [virtual]
Return grouping specification. Returns a string representing groupings for the integer
part of a number. This function is a hook for derived classes to change the value
returned.
See also
grouping() for details.
Returns
String representing grouping specification.
Referenced by std::numpunct< _CharT >::grouping().
template<typename _CharT > virtual char_type std::numpunct< _CharT >::do_thousands_sep ()
const [inline], [protected], [virtual]
Return thousands separator character. Returns a char_type to use as a thousands separator.
This function is a hook for derived classes to change the value returned.
Returns
char_type representing a thousands separator.
Referenced by std::numpunct< _CharT >::thousands_sep().
template<typename _CharT > virtual string_type std::numpunct< _CharT >::do_truename () const
[inline], [protected], [virtual]
Return string representation of bool true. Returns a string_type containing the text
representation for true bool variables. This function is a hook for derived classes to
change the value returned.
Returns
string_type representing printed form of true.
Referenced by std::numpunct< _CharT >::truename().
template<typename _CharT > string_type std::numpunct< _CharT >::falsename () const [inline]
Return string representation of bool false. This function returns a string_type containing
the text representation for false bool variables. It does so by calling
numpunct<char_type>::do_falsename().
Returns
string_type representing printed form of false.
References std::numpunct< _CharT >::do_falsename().
template<typename _CharT > string std::numpunct< _CharT >::grouping () const [inline]
Return grouping specification. This function returns a string representing groupings for
the integer part of a number. Groupings indicate where thousands separators should be
inserted in the integer part of a number.
Each char in the return string is interpret as an integer rather than a character. These
numbers represent the number of digits in a group. The first char in the string represents
the number of digits in the least significant group. If a char is negative, it indicates
an unlimited number of digits for the group. If more chars from the string are required to
group a number, the last char is used repeatedly.
For example, if the grouping() returns '\003\002' and is applied to the number 123456789,
this corresponds to 12,34,56,789. Note that if the string was '32', this would put more
than 50 digits into the least significant group if the character set is ASCII.
The string is returned by calling numpunct<char_type>::do_grouping().
Returns
string representing grouping specification.
References std::numpunct< _CharT >::do_grouping().
template<typename _CharT > char_type std::numpunct< _CharT >::thousands_sep () const [inline]
Return thousands separator character. This function returns a char_type to use as a
thousands separator. It does so by returning returning
numpunct<char_type>::do_thousands_sep().
Returns
char_type representing a thousands separator.
References std::numpunct< _CharT >::do_thousands_sep().
template<typename _CharT > string_type std::numpunct< _CharT >::truename () const [inline]
Return string representation of bool true. This function returns a string_type containing
the text representation for true bool variables. It does so by calling
numpunct<char_type>::do_truename().
Returns
string_type representing printed form of true.
References std::numpunct< _CharT >::do_truename().
Member Data Documentation
template<typename _CharT > locale::id std::numpunct< _CharT >::id [static]
Numpunct facet id.
Author
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