libstdc++
Classes | Typedefs | Functions | Variables
Metaprogramming
Utilities
Collaboration diagram for Metaprogramming:

Classes

struct  std::tr2::__reflection_typelist< _Elements >
 
struct  std::tr2::__reflection_typelist< _First, _Rest... >
 
struct  std::tr2::__reflection_typelist<>
 
struct  std::add_const< _Tp >
 
struct  std::add_cv< _Tp >
 
struct  std::add_lvalue_reference< _Tp >
 
struct  std::add_pointer< _Tp >
 
struct  std::add_rvalue_reference< _Tp >
 
struct  std::add_volatile< _Tp >
 
struct  std::aligned_storage< _Len, _Align >
 
struct  std::aligned_union< _Len, _Types >
 
struct  std::alignment_of< _Tp >
 
struct  std::tr2::bases< _Tp >
 
struct  std::common_type< _Tp >
 
struct  std::conditional< _Cond, _Iftrue, _Iffalse >
 
struct  std::decay< _Tp >
 
struct  std::tr2::direct_bases< _Tp >
 
struct  std::enable_if< bool, _Tp >
 
struct  std::extent< typename, _Uint >
 
struct  std::has_virtual_destructor< _Tp >
 
struct  std::integral_constant< _Tp, __v >
 
struct  std::is_abstract< _Tp >
 
struct  std::is_arithmetic< _Tp >
 
struct  std::is_array< _Tp >
 
struct  std::is_assignable< _Tp, _Up >
 
struct  std::is_base_of< _Base, _Derived >
 
struct  std::is_class< _Tp >
 
struct  std::is_compound< _Tp >
 
struct  std::is_const< _Tp >
 
struct  std::is_constructible< _Tp, _Args >
 
struct  std::is_copy_assignable< _Tp >
 
struct  std::is_copy_constructible< _Tp >
 
struct  std::is_default_constructible< _Tp >
 
struct  std::is_destructible< _Tp >
 
struct  std::is_empty< _Tp >
 
struct  std::is_enum< _Tp >
 
struct  std::is_floating_point< _Tp >
 
struct  std::is_function< _Tp >
 
struct  std::is_fundamental< _Tp >
 
struct  std::is_integral< _Tp >
 
struct  std::is_layout_compatible< _Tp, _Up >
 
struct  std::is_literal_type< _Tp >
 
struct  std::is_lvalue_reference< typename >
 
struct  std::is_member_function_pointer< _Tp >
 
struct  std::is_member_object_pointer< _Tp >
 
struct  std::is_member_pointer< _Tp >
 
struct  std::is_move_assignable< _Tp >
 
struct  std::is_move_constructible< _Tp >
 
struct  std::is_nothrow_assignable< _Tp, _Up >
 
struct  std::is_nothrow_constructible< _Tp, _Args >
 
struct  std::is_nothrow_copy_assignable< _Tp >
 
struct  std::is_nothrow_copy_constructible< _Tp >
 
struct  std::is_nothrow_default_constructible< _Tp >
 
struct  std::is_nothrow_destructible< _Tp >
 
struct  std::is_nothrow_move_assignable< _Tp >
 
struct  std::is_nothrow_move_constructible< _Tp >
 
struct  std::is_object< _Tp >
 
struct  std::is_pod< _Tp >
 
struct  std::is_pointer< _Tp >
 
struct  std::is_pointer_interconvertible_base_of< _Base, _Derived >
 
struct  std::is_polymorphic< _Tp >
 
struct  std::is_reference< _Tp >
 
struct  std::is_rvalue_reference< typename >
 
struct  std::is_same< _Tp, _Up >
 
struct  std::is_scalar< _Tp >
 
struct  std::is_signed< _Tp >
 
struct  std::is_standard_layout< _Tp >
 
struct  std::is_trivial< _Tp >
 
struct  std::is_trivially_assignable< _Tp, _Up >
 
struct  std::is_trivially_constructible< _Tp, _Args >
 
struct  std::is_trivially_copy_assignable< _Tp >
 
struct  std::is_trivially_copy_constructible< _Tp >
 
struct  std::is_trivially_copyable< _Tp >
 
struct  std::is_trivially_default_constructible< _Tp >
 
struct  std::is_trivially_destructible< _Tp >
 
struct  std::is_trivially_move_assignable< _Tp >
 
struct  std::is_trivially_move_constructible< _Tp >
 
struct  std::is_union< _Tp >
 
struct  std::is_unsigned< _Tp >
 
struct  std::is_void< _Tp >
 
struct  std::is_volatile< _Tp >
 
struct  std::make_signed< _Tp >
 
struct  std::make_unsigned< _Tp >
 
struct  std::rank< _Tp >
 
struct  std::remove_all_extents< _Tp >
 
struct  std::remove_const< _Tp >
 
struct  std::remove_cv< _Tp >
 
struct  std::remove_extent< _Tp >
 
struct  std::remove_pointer< _Tp >
 
struct  std::remove_reference< _Tp >
 
struct  std::remove_volatile< _Tp >
 
struct  std::result_of< _Signature >
 
struct  std::underlying_type< _Tp >
 

Typedefs

template<bool _Cond, typename _If , typename _Else >
using std::__conditional_t = typename __conditional< _Cond >::template type< _If, _Else >
 
template<bool _Cond, typename _Tp = void>
using std::__enable_if_t = typename enable_if< _Cond, _Tp >::type
 
template<typename _ToElementType , typename _FromElementType >
using std::__is_array_convertible = is_convertible< _FromElementType(*)[], _ToElementType(*)[]>
 
using std::_Build_index_tuple< _Num >::__type = __make_integer_seq< _IdxTuple, size_t, _Num >
 
template<typename , size_t... _Indices>
using std::_Build_index_tuple< _Num >::_IdxTuple = _Index_tuple< _Indices... >
 
template<typename _Tp >
using std::add_lvalue_reference_t = typename add_lvalue_reference< _Tp >::type
 
template<typename _Tp >
using std::add_pointer_t = typename add_pointer< _Tp >::type
 
template<typename _Tp >
using std::add_rvalue_reference_t = typename add_rvalue_reference< _Tp >::type
 
template<size_t _Len, size_t _Align = __aligned_storage_default_alignment(_Len)>
using std::aligned_storage_t = typename aligned_storage< _Len, _Align >::type
 
template<size_t _Len, typename... _Types>
using std::aligned_union_t = typename aligned_union< _Len, _Types... >::type
 
template<typename... _Tp>
using std::common_type_t = typename common_type< _Tp... >::type
 
template<bool _Cond, typename _Iftrue , typename _Iffalse >
using std::conditional_t = typename conditional< _Cond, _Iftrue, _Iffalse >::type
 
template<typename _Tp >
using std::decay_t = typename decay< _Tp >::type
 
template<bool _Cond, typename _Tp = void>
using std::enable_if_t = typename enable_if< _Cond, _Tp >::type
 
using std::false_type = __bool_constant< false >
 
template<typename _Tp >
using std::make_signed_t = typename make_signed< _Tp >::type
 
template<typename _Tp >
using std::make_unsigned_t = typename make_unsigned< _Tp >::type
 
template<typename _Tp >
using std::remove_all_extents_t = typename remove_all_extents< _Tp >::type
 
template<typename _Tp >
using std::remove_extent_t = typename remove_extent< _Tp >::type
 
template<typename _Tp >
using std::remove_pointer_t = typename remove_pointer< _Tp >::type
 
template<typename _Tp >
using std::remove_reference_t = typename remove_reference< _Tp >::type
 
template<typename _Tp >
using std::result_of_t = typename result_of< _Tp >::type
 
using std::true_type = __bool_constant< true >
 
using std::integral_constant< _Tp, __v >::type = integral_constant< _Tp, __v >
 
using std::enable_if< true, _Tp >::type = _Tp
 
template<typename _Tp , typename >
using std::__conditional< bool >::type = _Tp
 
template<typename , typename _Up >
using std::__conditional< false >::type = _Up
 
using std::__is_implicitly_default_constructible_impl< _Tp >::type = decltype(__test(declval< _Tp >()))
 
using std::remove_const< _Tp >::type = _Tp
 
using std::remove_const< _Tp const >::type = _Tp
 
using std::remove_volatile< _Tp >::type = _Tp
 
using std::remove_volatile< _Tp volatile >::type = _Tp
 
using std::remove_cv< _Tp >::type = __remove_cv(_Tp)
 
using std::add_const< _Tp >::type = _Tp const
 
using std::add_volatile< _Tp >::type = _Tp volatile
 
using std::add_cv< _Tp >::type = _Tp const volatile
 
using std::remove_reference< _Tp >::type = __remove_reference(_Tp)
 
using std::add_lvalue_reference< _Tp >::type = __add_lval_ref_t< _Tp >
 
using std::add_rvalue_reference< _Tp >::type = __add_rval_ref_t< _Tp >
 
using std::make_unsigned< _Tp >::type = typename __make_unsigned_selector< _Tp >::__type
 
using std::make_signed< _Tp >::type = typename __make_signed_selector< _Tp >::__type
 
using std::remove_extent< _Tp >::type = __remove_extent(_Tp)
 
using std::remove_all_extents< _Tp >::type = __remove_all_extents(_Tp)
 
using std::remove_pointer< _Tp >::type = __remove_pointer(_Tp)
 
using std::add_pointer< _Tp >::type = __add_pointer(_Tp)
 
using std::aligned_union< _Len, _Types >::type = typename aligned_storage< _S_len, alignment_value >::type
 
using std::decay< _Tp >::type = typename __decay_selector< _Tp >::type
 
using std::decay< _Tp & >::type = typename __decay_selector< _Tp >::type
 
using std::decay< _Tp && >::type = typename __decay_selector< _Tp >::type
 
using std::conditional< _Cond, _Iftrue, _Iffalse >::type = _Iftrue
 
using std::conditional< false, _Iftrue, _Iffalse >::type = _Iffalse
 
using std::common_reference< _Tp0 >::type = _Tp0
 
template<typename _Tp >
using std::underlying_type_t = typename underlying_type< _Tp >::type
 
using std::integral_constant< _Tp, __v >::value_type = _Tp
 

Functions

template<typename _Tp >
static void std::__do_is_implicitly_default_constructible_impl::__helper (const _Tp &)
 
static false_type std::__do_is_implicitly_default_constructible_impl::__test (...)
 
template<typename _Tp >
static true_type std::__do_is_implicitly_default_constructible_impl::__test (const _Tp &, decltype(__helper< const _Tp & >({})) *=0)
 
constexpr std::integral_constant< _Tp, __v >::operator value_type () const noexcept
 
template<typename _Tp >
constexpr _Require< __not_< __is_tuple_like< _Tp > >, is_move_constructible< _Tp >, is_move_assignable< _Tp > > std::swap (_Tp &, _Tp &) noexcept(__and_< is_nothrow_move_constructible< _Tp >, is_nothrow_move_assignable< _Tp >>::value)
 
template<typename _Tp , size_t _Nm>
constexpr __enable_if_t< __is_swappable< _Tp >::value > std::swap (_Tp(&__a)[_Nm], _Tp(&__b)[_Nm]) noexcept(__is_nothrow_swappable< _Tp >::value)
 

Variables

unsigned char std::aligned_storage< _Len, _Align >::type::__data [_Len]
 
template<typename _Tp , typename... _Args>
constexpr bool std::__is_nothrow_new_constructible
 
static const size_t std::__strictest_alignment< _Types >::_S_alignment
 
static const size_t std::__strictest_alignment< _Tp, _Types... >::_S_alignment
 
static const size_t std::__strictest_alignment< _Types >::_S_size
 
static const size_t std::__strictest_alignment< _Tp, _Types... >::_S_size
 
static const size_t std::aligned_union< _Len, _Types >::alignment_value
 
static constexpr _Tp std::integral_constant< _Tp, __v >::value
 
template<typename... _Tp>
using std::common_reference_t = typename common_reference< _Tp... >::type
 
template<typename _Tp , typename _Up >
constexpr bool std::is_layout_compatible_v
 
template<typename _Base , typename _Derived >
constexpr bool std::is_pointer_interconvertible_base_of_v
 
template<typename _S1 , typename _S2 , typename _M1 , typename _M2 >
constexpr bool std::is_corresponding_member (_M1 _S1::*__m1, _M2 _S2::*__m2) noexcept
 
template<typename _Tp , typename _Mem >
constexpr bool std::is_pointer_interconvertible_with_class (_Mem _Tp::*__mp) noexcept
 

Detailed Description

Template utilities for compile-time introspection and modification, including type classification traits, type property inspection traits and type transformation traits.

Since
C++11

Typedef Documentation

◆ add_lvalue_reference_t

template<typename _Tp >
using std::add_lvalue_reference_t = typedef typename add_lvalue_reference<_Tp>::type

Alias template for add_lvalue_reference.

Definition at line 1892 of file type_traits.

◆ add_pointer_t

template<typename _Tp >
using std::add_pointer_t = typedef typename add_pointer<_Tp>::type

Alias template for add_pointer.

Definition at line 2358 of file type_traits.

◆ add_rvalue_reference_t

template<typename _Tp >
using std::add_rvalue_reference_t = typedef typename add_rvalue_reference<_Tp>::type

Alias template for add_rvalue_reference.

Definition at line 1896 of file type_traits.

◆ aligned_storage_t

template<size_t _Len, size_t _Align = __aligned_storage_default_alignment(_Len)>
using std::aligned_storage_t = typedef typename aligned_storage<_Len, _Align>::type

Alias template for aligned_storage.

Definition at line 2930 of file type_traits.

◆ common_reference_t

template<typename... _Tp>
using std::common_reference_t = typedef typename common_reference<_Tp...>::type
Since
C++20

Definition at line 4288 of file type_traits.

◆ common_type_t

template<typename... _Tp>
using std::common_type_t = typedef typename common_type<_Tp...>::type

Alias template for common_type.

Definition at line 2950 of file type_traits.

◆ conditional_t

template<bool _Cond, typename _Iftrue , typename _Iffalse >
using std::conditional_t = typedef typename conditional<_Cond, _Iftrue, _Iffalse>::type

Alias template for conditional.

Definition at line 2946 of file type_traits.

◆ decay_t

template<typename _Tp >
using std::decay_t = typedef typename decay<_Tp>::type

Alias template for decay.

Definition at line 2938 of file type_traits.

◆ enable_if_t

template<bool _Cond, typename _Tp = void>
using std::enable_if_t = typedef typename enable_if<_Cond, _Tp>::type

Alias template for enable_if.

Definition at line 2942 of file type_traits.

◆ false_type

using std::false_type = typedef __bool_constant<false>

The type used as a compile-time boolean with false value.

Definition at line 122 of file type_traits.

◆ make_signed_t

template<typename _Tp >
using std::make_signed_t = typedef typename make_signed<_Tp>::type

Alias template for make_signed.

Definition at line 2244 of file type_traits.

◆ make_unsigned_t

template<typename _Tp >
using std::make_unsigned_t = typedef typename make_unsigned<_Tp>::type

Alias template for make_unsigned.

Definition at line 2248 of file type_traits.

◆ remove_all_extents_t

template<typename _Tp >
using std::remove_all_extents_t = typedef typename remove_all_extents<_Tp>::type

Alias template for remove_all_extents.

Definition at line 2298 of file type_traits.

◆ remove_extent_t

template<typename _Tp >
using std::remove_extent_t = typedef typename remove_extent<_Tp>::type

Alias template for remove_extent.

Definition at line 2294 of file type_traits.

◆ remove_pointer_t

template<typename _Tp >
using std::remove_pointer_t = typedef typename remove_pointer<_Tp>::type

Alias template for remove_pointer.

Definition at line 2354 of file type_traits.

◆ remove_reference_t

template<typename _Tp >
using std::remove_reference_t = typedef typename remove_reference<_Tp>::type

Alias template for remove_reference.

Definition at line 1888 of file type_traits.

◆ result_of_t

template<typename _Tp >
using std::result_of_t = typedef typename result_of<_Tp>::type

Alias template for result_of.

Definition at line 2958 of file type_traits.

◆ true_type

using std::true_type = typedef __bool_constant<true>

The type used as a compile-time boolean with true value.

Definition at line 119 of file type_traits.

◆ type

template<size_t _Len, typename... _Types>
using std::aligned_union< _Len, _Types >::type = typename aligned_storage<_S_len, alignment_value>::type

The storage.

Definition at line 2480 of file type_traits.

◆ underlying_type_t

template<typename _Tp >
using std::underlying_type_t = typedef typename underlying_type<_Tp>::type

Alias template for underlying_type.

Definition at line 2954 of file type_traits.

Function Documentation

◆ is_corresponding_member()

template<typename _S1 , typename _S2 , typename _M1 , typename _M2 >
constexpr bool std::is_corresponding_member ( _M1 _S1::*  __m1,
_M2 _S2::*  __m2 
)
constexprnoexcept
Since
C++20

Definition at line 4061 of file type_traits.

◆ is_pointer_interconvertible_with_class()

template<typename _Tp , typename _Mem >
constexpr bool std::is_pointer_interconvertible_with_class ( _Mem _Tp::*  __mp)
constexprnoexcept

True if __mp points to the first member of a standard-layout type.

Returns
true if s.*__mp is pointer-interconvertible with s
Since
C++20

Definition at line 4091 of file type_traits.

◆ swap()

template<typename _Tp , size_t _Nm>
constexpr __enable_if_t<__is_swappable<_Tp>::value> std::swap ( _Tp(&)  __a[_Nm],
_Tp(&)  __b[_Nm] 
)
inlineconstexprnoexcept

Swap the contents of two arrays.

Definition at line 255 of file move.h.

Variable Documentation

◆ alignment_value

template<size_t _Len, typename... _Types>
const size_t std::aligned_union< _Len, _Types >::alignment_value
static

The value of the strictest alignment of _Types.

Definition at line 2478 of file type_traits.

◆ is_layout_compatible_v

template<typename _Tp , typename _Up >
constexpr bool std::is_layout_compatible_v
constexpr
Since
C++20

Definition at line 4050 of file type_traits.

◆ is_pointer_interconvertible_base_of_v

template<typename _Base , typename _Derived >
constexpr bool std::is_pointer_interconvertible_base_of_v
constexpr
Since
C++20

Definition at line 4078 of file type_traits.