Provided by: libstdc++-5-doc_5.5.0-12ubuntu1_all 

NAME
std::_Safe_tuple_element< __i, _Tuple >
SYNOPSIS
Inherits std::_Safe_tuple_element_impl< __i, _Tuple,(__i< tuple_size< _Tuple >::value)>.
Detailed Description
template<std::size_t __i, typename _Tuple>
struct std::_Safe_tuple_element< __i, _Tuple >" Like tuple_element, but returns _No_tuple_element when
tuple_element would return an error.
Definition at line 862 of file functional.
Author
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libstdc++ Wed Apr 11 2018 std::_Safe_tuple_element< __i, _Tuple >(3cxx)