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is_tuple_like_< T > Class Template Reference

tuple_size and tuple_element check. More...

#include <ranges.h>

Static Public Attributes

static FMT_CONSTEXPR_DECL const bool value
 

Static Private Member Functions

template<typename U >
static auto check (U *p) -> decltype(std::tuple_size< U >::value,(void) std::declval< typename std::tuple_element< 0, U >::type >(), int())
 
template<typename >
static void check (...)
 

Detailed Description

template<typename T>
class internal::is_tuple_like_< T >

tuple_size and tuple_element check.

Definition at line 105 of file ranges.h.

Member Function Documentation

◆ check() [1/2]

template<typename T >
template<typename >
static void check ( ...)
staticprivate

◆ check() [2/2]

template<typename T >
template<typename U >
static auto check ( U * p) -> decltype(std::tuple_size< U >::value,(void) std::declval< typename std::tuple_element< 0, U >::type >(), int())
staticprivate

Member Data Documentation

◆ value

template<typename T >
FMT_CONSTEXPR_DECL const bool value
static
Initial value:
=
!std::is_void<decltype(check<T>(nullptr))>::value
static FMT_CONSTEXPR_DECL const bool value
Definition ranges.h:114

Definition at line 114 of file ranges.h.