libstdc++
GNU C++ library
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std::ranges::__detail::__has_tuple_element Concept Reference

#include "ranges"

Concept definition

template<typename _Tp, size_t _Nm>
concept __has_tuple_element = requires(_Tp __t)
{
typename tuple_size<_Tp>::type;
requires _Nm < tuple_size_v<_Tp>;
typename tuple_element_t<_Nm, _Tp>;
{ std::get<_Nm>(__t) }
-> convertible_to<const tuple_element_t<_Nm, _Tp>&>;
}
std::tuple_element_t
typename tuple_element< __i, _Tp >::type tuple_element_t
Definition utility.h:137
std::get
constexpr _Tp & get(array< _Tp, _Nm > &__arr) noexcept
Definition array:394
std::tuple_size
Finds the size of a given tuple type.
Definition utility.h:51
std::convertible_to
[concept.convertible], concept convertible_to
Definition concepts:81

Detailed Description

Definition at line 4344 of file ranges.