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concepts.hpp File Reference
#include <initializer_list>
#include <utility>
#include <type_traits>
#include <concepts/swap.hpp>
#include <concepts/type_traits.hpp>

Go to the source code of this file.

Classes

struct  concepts::return_t_< typename >
 

Concepts

concept  concepts::defs::is_true
 The is_true concept.
 
concept  concepts::defs::type
 The type concept.
 
concept  concepts::defs::satisfies
 The satisfies concept.
 
concept  concepts::defs::same_as
 The same_as concept.
 
concept  concepts::defs::implicitly_convertible_to
 The implicitly_convertible_to concept.
 
concept  concepts::defs::explicitly_convertible_to_
 The explicitly_convertible_to_ concept.
 
concept  concepts::defs::explicitly_convertible_to
 The explicitly_convertible_to concept.
 
concept  concepts::defs::convertible_to
 The convertible_to concept.
 
concept  concepts::defs::derived_from_
 The derived_from_ concept.
 
concept  concepts::defs::derived_from
 The derived_from concept.
 
concept  concepts::defs::common_reference_with_
 The common_reference_with_ concept.
 
concept  concepts::defs::common_reference_with
 The common_reference_with concept.
 
concept  concepts::defs::common_with_
 The common_with_ concept.
 
concept  concepts::defs::common_with
 The common_with concept.
 
concept  concepts::defs::integral
 The integral concept.
 
concept  concepts::defs::signed_integral
 The signed_integral concept.
 
concept  concepts::defs::unsigned_integral
 The unsigned_integral concept.
 
concept  concepts::defs::assignable_from_
 The assignable_from_ concept.
 
concept  concepts::defs::assignable_from
 The assignable_from concept.
 
concept  concepts::defs::swappable_
 The swappable_ concept.
 
concept  concepts::defs::swappable
 The swappable concept.
 
concept  concepts::defs::swappable_with_
 The swappable_with_ concept.
 
concept  concepts::defs::swappable_with
 The swappable_with concept.
 
concept  concepts::detail::boolean_testable_impl_
 The boolean_testable_impl_ concept.
 
concept  concepts::detail::boolean_testable_frag_
 The boolean_testable_frag_ concept.
 
concept  concepts::detail::boolean_testable_
 The boolean_testable_ concept.
 
concept  concepts::detail::weakly_equality_comparable_with_frag_
 The weakly_equality_comparable_with_frag_ concept.
 
concept  concepts::detail::weakly_equality_comparable_with_
 The weakly_equality_comparable_with_ concept.
 
concept  concepts::detail::partially_ordered_with_frag_
 The partially_ordered_with_frag_ concept.
 
concept  concepts::detail::partially_ordered_with_
 The partially_ordered_with_ concept.
 
concept  concepts::defs::equality_comparable
 The equality_comparable concept.
 
concept  concepts::defs::equality_comparable_with_
 The equality_comparable_with_ concept.
 
concept  concepts::defs::equality_comparable_with
 The equality_comparable_with concept.
 
concept  concepts::defs::totally_ordered
 The totally_ordered concept.
 
concept  concepts::defs::totally_ordered_with_
 The totally_ordered_with_ concept.
 
concept  concepts::defs::totally_ordered_with
 The totally_ordered_with concept.
 
concept  concepts::defs::destructible
 The destructible concept.
 
concept  concepts::defs::constructible_from
 The constructible_from concept.
 
concept  concepts::defs::default_constructible
 The default_constructible concept.
 
concept  concepts::defs::move_constructible
 The move_constructible concept.
 
concept  concepts::defs::copy_constructible_
 The copy_constructible_ concept.
 
concept  concepts::defs::copy_constructible
 The copy_constructible concept.
 
concept  concepts::defs::move_assignable_
 The move_assignable_ concept.
 
concept  concepts::defs::movable
 The movable concept.
 
concept  concepts::defs::copy_assignable_
 The copy_assignable_ concept.
 
concept  concepts::defs::copyable
 The copyable concept.
 
concept  concepts::defs::semiregular
 The semiregular concept.
 
concept  concepts::defs::regular
 The regular concept.
 

Macros

#define CPP_PP_IGNORE_CXX2A_COMPAT_BEGIN
 
#define CPP_PP_IGNORE_CXX2A_COMPAT_END
 
#define CPP_CXX_CONCEPTS   0L
 
#define CPP_PP_CAT_(X, ...)   X ## __VA_ARGS__
 
#define CPP_PP_CAT(X, ...)   CPP_PP_CAT_(X, __VA_ARGS__)
 
#define CPP_PP_EVAL_(X, ARGS)   X ARGS
 
#define CPP_PP_EVAL(X, ...)   CPP_PP_EVAL_(X, (__VA_ARGS__))
 
#define CPP_PP_EVAL2_(X, ARGS)   X ARGS
 
#define CPP_PP_EVAL2(X, ...)   CPP_PP_EVAL2_(X, (__VA_ARGS__))
 
#define CPP_PP_EXPAND(...)   __VA_ARGS__
 
#define CPP_PP_EAT(...)
 
#define CPP_PP_FIRST(LIST)   CPP_PP_FIRST_ LIST
 
#define CPP_PP_FIRST_(...)   __VA_ARGS__ CPP_PP_EAT
 
#define CPP_PP_SECOND(LIST)   CPP_PP_SECOND_ LIST
 
#define CPP_PP_SECOND_(...)   CPP_PP_EXPAND
 
#define CPP_PP_CHECK(...)   CPP_PP_EXPAND(CPP_PP_CHECK_N(__VA_ARGS__, 0,))
 
#define CPP_PP_CHECK_N(x, n, ...)   n
 
#define CPP_PP_PROBE(x)   x, 1,
 
#define CPP_PP_PROBE_N(x, n)   x, n,
 
#define CPP_PP_IS_PAREN(x)   CPP_PP_CHECK(CPP_PP_IS_PAREN_PROBE x)
 
#define CPP_PP_IS_PAREN_PROBE(...)   CPP_PP_PROBE(~)
 
#define CPP_CXX_VA_OPT   0
 
#define CPP_PP_COUNT(...)
 
#define CPP_PP_COUNT_( _01, _02, _03, _04, _05, _06, _07, _08, _09, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, N, ...)    N
 
#define CPP_PP_IIF(BIT)   CPP_PP_CAT_(CPP_PP_IIF_, BIT)
 
#define CPP_PP_IIF_0(TRUE, ...)   __VA_ARGS__
 
#define CPP_PP_IIF_1(TRUE, ...)   TRUE
 
#define CPP_PP_LPAREN   (
 
#define CPP_PP_RPAREN   )
 
#define CPP_PP_NOT(BIT)   CPP_PP_CAT_(CPP_PP_NOT_, BIT)
 
#define CPP_PP_NOT_0   1
 
#define CPP_PP_NOT_1   0
 
#define CPP_PP_EMPTY()
 
#define CPP_PP_COMMA()   ,
 
#define CPP_PP_LBRACE()   {
 
#define CPP_PP_RBRACE()   }
 
#define CPP_PP_COMMA_IIF(X)    CPP_PP_IIF(X)(CPP_PP_EMPTY, CPP_PP_COMMA)()
 
#define CPP_PP_FOR_EACH(M, ...)    CPP_PP_FOR_EACH_N(CPP_PP_COUNT(__VA_ARGS__), M, __VA_ARGS__)
 
#define CPP_PP_FOR_EACH_N(N, M, ...)    CPP_PP_CAT(CPP_PP_FOR_EACH_, N)(M, __VA_ARGS__)
 
#define CPP_PP_FOR_EACH_1(M, _1)    M(_1)
 
#define CPP_PP_FOR_EACH_2(M, _1, _2)    M(_1), M(_2)
 
#define CPP_PP_FOR_EACH_3(M, _1, _2, _3)    M(_1), M(_2), M(_3)
 
#define CPP_PP_FOR_EACH_4(M, _1, _2, _3, _4)    M(_1), M(_2), M(_3), M(_4)
 
#define CPP_PP_FOR_EACH_5(M, _1, _2, _3, _4, _5)    M(_1), M(_2), M(_3), M(_4), M(_5)
 
#define CPP_PP_FOR_EACH_6(M, _1, _2, _3, _4, _5, _6)    M(_1), M(_2), M(_3), M(_4), M(_5), M(_6)
 
#define CPP_PP_FOR_EACH_7(M, _1, _2, _3, _4, _5, _6, _7)    M(_1), M(_2), M(_3), M(_4), M(_5), M(_6), M(_7)
 
#define CPP_PP_FOR_EACH_8(M, _1, _2, _3, _4, _5, _6, _7, _8)    M(_1), M(_2), M(_3), M(_4), M(_5), M(_6), M(_7), M(_8)
 
#define CPP_PP_PROBE_EMPTY_PROBE_CPP_PP_PROBE_EMPTY    CPP_PP_PROBE(~)
 
#define CPP_PP_PROBE_EMPTY()
 
#define CPP_PP_IS_NOT_EMPTY(...)
 
#define CPP_BOOL(...)   __VA_ARGS__
 
#define CPP_TRUE_FN   CPP_true_fn(::concepts::detail::xNil{})
 
#define CPP_NOT(...)   (!(__VA_ARGS__))
 
#define CPP_assert(...)
 
#define CPP_assert_msg   static_assert
 
#define CPP_concept   CPP_INLINE_VAR constexpr bool
 
#define CPP_and   CPP_and_sfinae
 
#define CPP_template   CPP_template_sfinae
 
#define CPP_template_def   CPP_template_def_sfinae
 
#define CPP_member   CPP_member_sfinae
 
#define CPP_auto_member   CPP_member_sfinae
 
#define CPP_ctor   CPP_ctor_sfinae
 
#define CPP_concept_ref(NAME, ...)
 
#define CPP_TEMPLATE_AUX_   CPP_TEMPLATE_SFINAE_AUX_
 INTERNAL ONLY.
 
#define CPP_template_sfinae(...)
 
#define CPP_TEMPLATE_SFINAE_PROBE_CONCEPT_concept    CPP_PP_PROBE(~)
 INTERNAL ONLY.
 
#define CPP_TEMPLATE_SFINAE_AUX_WHICH_(FIRST, ...)
 INTERNAL ONLY.
 
#define CPP_TEMPLATE_SFINAE_AUX_(...)
 INTERNAL ONLY.
 
#define CPP_TEMPLATE_SFINAE_AUX_0(...)
 INTERNAL ONLY.
 
#define CPP_TEMPLATE_SFINAE_AUX_1(DECL, ...)
 INTERNAL ONLY.
 
#define CPP_CONCEPT_NAME_(DECL)
 INTERNAL ONLY.
 
#define CPP_CONCEPT_PARAMS_(DECL)    CPP_PP_EVAL(CPP_PP_SECOND, CPP_EAT_CONCEPT_(DECL))
 INTERNAL ONLY.
 
#define CPP_EAT_CONCEPT_(DECL)    CPP_PP_CAT(CPP_EAT_CONCEPT_, DECL)
 INTERNAL ONLY.
 
#define CPP_EAT_CONCEPT_concept
 INTERNAL ONLY.
 
#define CPP_and_sfinae    && CPP_BOOL(CPP_true), int> = 0, std::enable_if_t<
 INTERNAL ONLY.
 
#define CPP_template_def_sfinae(...)    template<__VA_ARGS__ CPP_TEMPLATE_DEF_SFINAE_AUX_
 INTERNAL ONLY.
 
#define CPP_TEMPLATE_DEF_SFINAE_AUX_(...)
 INTERNAL ONLY.
 
#define CPP_and_sfinae_def    && CPP_BOOL(CPP_true), int>, std::enable_if_t<
 INTERNAL ONLY.
 
#define CPP_TEMPLATE_SFINAE_AUX_3_requires
 INTERNAL ONLY.
 
#define CPP_member_sfinae    CPP_broken_friend_member
 INTERNAL ONLY.
 
#define CPP_ctor_sfinae(TYPE)
 INTERNAL ONLY.
 
#define CPP_CTOR_SFINAE_IMPL_1_(...)
 INTERNAL ONLY.
 
#define CPP_CTOR_SFINAE_PROBE_NOEXCEPT_noexcept    CPP_PP_PROBE(~)
 INTERNAL ONLY.
 
#define CPP_CTOR_SFINAE_MAKE_PROBE(FIRST, ...)    CPP_PP_CAT(CPP_CTOR_SFINAE_PROBE_NOEXCEPT_, FIRST)
 INTERNAL ONLY.
 
#define CPP_CTOR_SFINAE_REQUIRES(...)
 INTERNAL ONLY.
 
#define CPP_CTOR_SFINAE_REQUIRES_0(...)
 INTERNAL ONLY.
 
#define CPP_CTOR_SFINAE_REQUIRES_1(...)
 INTERNAL ONLY.
 
#define CPP_CTOR_SFINAE_EAT_NOEXCEPT_noexcept(...)
 INTERNAL ONLY.
 
#define CPP_CTOR_SFINAE_SHOW_NOEXCEPT_noexcept(...)
 INTERNAL ONLY.
 
#define CPP_broken_friend_ret(...)
 
#define CPP_BROKEN_FRIEND_RETURN_TYPE_AUX_(...)
 INTERNAL ONLY.
 
#define CPP_TEMPLATE_AUX_2_requires
 INTERNAL ONLY.
 
#define CPP_BROKEN_FRIEND_RETURN_TYPE_AUX_3_(...)    (__VA_ARGS__ && CPP_TRUE_FN)>>
 INTERNAL ONLY.
 
#define CPP_broken_friend_member
 INTERNAL ONLY.
 
#define CPP_requires(NAME, REQS)
 
#define CPP_requires_ref(NAME, ...)
 
#define CPP_REQUIRES_requires(...)    (__VA_ARGS__) -> decltype CPP_REQUIRES_RETURN_
 INTERNAL ONLY.
 
#define CPP_REQUIRES_RETURN_(...)   (__VA_ARGS__, void()) {}
 INTERNAL ONLY.
 
#define CPP_REQUIRES_AUX_(NAME, ...)
 INTERNAL ONLY.
 
#define CPP_ret    CPP_broken_friend_ret
 
#define CPP_FUN_IMPL_1_(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_REQUIRES(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_CONST_(MAYBE_CONST, ...)
 INTERNAL ONLY.
 
#define CPP_PP_PROBE_CONST_PROBE_const   CPP_PP_PROBE(~)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_CONST_1(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_(MAYBE_NOEXCEPT, ...)
 INTERNAL ONLY.
 
#define CPP_PP_PROBE_NOEXCEPT_PROBE_noexcept   CPP_PP_PROBE(~)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_0(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_1(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_EAT_NOEXCEPT_noexcept(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SHOW_NOEXCEPT_noexcept(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_CONST_0(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_(MAYBE_NOEXCEPT, ...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_0(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_1(...)
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_EAT_CONST_const
 INTERNAL ONLY.
 
#define CPP_FUN_IMPL_EAT_REQUIRES_requires
 INTERNAL ONLY.
 
#define CPP_fun(X)   CPP_PP_IGNORE_CXX2A_COMPAT_BEGIN X CPP_FUN_IMPL_1_
 
#define CPP_auto_fun(X)   X CPP_AUTO_FUN_IMPL_
 
#define CPP_AUTO_FUN_IMPL_(...)   (__VA_ARGS__) CPP_AUTO_FUN_RETURNS_
 INTERNAL ONLY.
 
#define CPP_AUTO_FUN_RETURNS_(...)
 INTERNAL ONLY.
 
#define CPP_AUTO_FUN_SELECT_RETURNS_(MAYBE_CONST, ...)
 INTERNAL ONLY.
 
#define CPP_PP_PROBE_CONST_MUTABLE_PROBE_const   CPP_PP_PROBE_N(~, 1)
 INTERNAL ONLY.
 
#define CPP_PP_PROBE_CONST_MUTABLE_PROBE_mutable   CPP_PP_PROBE_N(~, 2)
 INTERNAL ONLY.
 
#define CPP_PP_EAT_MUTABLE_mutable
 INTERNAL ONLY.
 
#define CPP_AUTO_FUN_RETURNS_CONST_2(...)    CPP_PP_CAT(CPP_PP_EAT_MUTABLE_, __VA_ARGS__) CPP_AUTO_FUN_RETURNS_CONST_0
 INTERNAL ONLY.
 
#define CPP_AUTO_FUN_RETURNS_CONST_1(...)    __VA_ARGS__ CPP_AUTO_FUN_RETURNS_CONST_0
 INTERNAL ONLY.
 
#define CPP_AUTO_FUN_RETURNS_CONST_0(...)
 INTERNAL ONLY.
 
#define CPP_AUTO_FUN_RETURNS_return
 INTERNAL ONLY.
 
#define CPP_AUTO_FUN_DECLTYPE_NOEXCEPT_(...)
 INTERNAL ONLY.
 

Typedefs

template<bool B>
using concepts::bool_ = std::integral_constant< bool, B >
 
template<typename T , typename EnableIf >
using concepts::return_t = meta::invoke< return_t_< EnableIf >, T >
 

Functions

template<typename From , typename To >
 concepts::CPP_requires (explicitly_convertible_to_, requires(From(*from)())(static_cast< To >(from())))
 
 concepts::CPP_template (typename T, typename U)(concept(derived_from_)(T
 
 concepts::CPP_template (typename T, typename U)(concept(common_reference_with_)(T
 
 concepts::CPP_template (typename T, typename U)(concept(common_with_)(T
 
template<typename T , typename U >
 concepts::CPP_requires (assignable_from_, requires(T t, U &&u)(t=(U &&) u, requires_< same_as< T, decltype(t=(U &&) u)> >))
 
template<typename T >
 concepts::CPP_requires (swappable_, requires(T &t, T &u)(concepts::swap(t, u)))
 
template<typename T , typename U >
 concepts::CPP_requires (swappable_with_, requires(T &&t, U &&u)(concepts::swap((T &&) t,(T &&) t), concepts::swap((U &&) u,(U &&) u), concepts::swap((U &&) u,(T &&) t), concepts::swap((T &&) t,(U &&) u)))
 
template<typename T >
 concepts::detail::CPP_requires (boolean_testable_frag_, requires(T &&t)(!(T &&) t, concepts::requires_< boolean_testable_impl_< decltype(!(T &&) t)> >))
 
template<typename T , typename U >
 concepts::detail::CPP_requires (weakly_equality_comparable_with_frag_, requires(detail::as_cref_t< T > t, detail::as_cref_t< U > u)(concepts::requires_< boolean_testable_< decltype(t==u)> >, concepts::requires_< boolean_testable_< decltype(t !=u)> >, concepts::requires_< boolean_testable_< decltype(u==t)> >, concepts::requires_< boolean_testable_< decltype(u !=t)> >))
 
template<typename T , typename U >
 concepts::detail::CPP_requires (partially_ordered_with_frag_, requires(detail::as_cref_t< T > &t, detail::as_cref_t< U > &u)(concepts::requires_< boolean_testable_< decltype(t< u)> >, concepts::requires_< boolean_testable_< decltype(t > u)> >, concepts::requires_< boolean_testable_< decltype(t<=u)> >, concepts::requires_< boolean_testable_< decltype(t >=u)> >, concepts::requires_< boolean_testable_< decltype(u< t)> >, concepts::requires_< boolean_testable_< decltype(u > t)> >, concepts::requires_< boolean_testable_< decltype(u<=t)> >, concepts::requires_< boolean_testable_< decltype(u >=t)> >))
 
 concepts::CPP_template (typename T, typename U)(concept(equality_comparable_with_)(T
 
 concepts::CPP_template (typename T, typename U)(concept(totally_ordered_with_)(T
 
 concepts::CPP_template (typename T)(concept(copy_constructible_)(T)
 
 concepts::CPP_template (typename T)(concept(move_assignable_)(T)
 
 concepts::CPP_template (typename T)(concept(copy_assignable_)(T)
 

Variables

template<bool... Bs>
CPP_INLINE_VAR constexpr bool concepts::and_v
 
template<bool... Bs>
CPP_INLINE_VAR constexpr bool concepts::or_v
 
template<bool B>
CPP_INLINE_VAR constexpr std::enable_if_t< B, int > concepts::requires_ = 0
 
template<bool B>
CPP_concept concepts::is_true = B
 
template<typename... Args>
CPP_concept concepts::type = true
 
template<class T , template< typename... > class Trait, typename... Args>
CPP_concept concepts::satisfies
 
template<typename A , typename B >
CPP_concept concepts::same_as
 
template<typename From , typename To >
CPP_concept concepts::implicitly_convertible_to
 
template<typename From , typename To >
CPP_concept concepts::explicitly_convertible_to
 
template<typename From , typename To >
CPP_concept concepts::convertible_to
 
 concepts::U
 
convertible_to< T const volatile *, U const volatile * > concepts::convertible_to< T const volatile *, U const volatile * >
 
template<typename T , typename U >
CPP_concept concepts::derived_from
 
 concepts::U
 
same_as< common_reference_t< T, U >, common_reference_t< U, T > > CPP_and convertible_to< T, common_reference_t< T, U > > CPP_and concepts::convertible_to< U, common_reference_t< T, U > >
 
template<typename T , typename U >
CPP_concept concepts::common_reference_with
 
 concepts::U
 
template<typename T , typename U >
CPP_concept concepts::common_with
 
template<typename T >
CPP_concept concepts::integral
 
template<typename T >
CPP_concept concepts::signed_integral
 
template<typename T >
CPP_concept concepts::unsigned_integral
 
template<typename T , typename U >
CPP_concept concepts::assignable_from
 
template<typename T >
CPP_concept concepts::swappable
 
template<typename T , typename U >
CPP_concept concepts::swappable_with
 
template<typename T >
CPP_concept concepts::detail::boolean_testable_impl_ = convertible_to<T, bool>
 
template<typename T >
CPP_concept concepts::detail::boolean_testable_
 
template<typename T , typename U >
CPP_concept concepts::detail::weakly_equality_comparable_with_
 
template<typename T , typename U >
CPP_concept concepts::detail::partially_ordered_with_
 
template<typename T >
CPP_concept concepts::equality_comparable
 
 concepts::U
 
template<typename T , typename U >
CPP_concept concepts::equality_comparable_with
 
template<typename T >
CPP_concept concepts::totally_ordered
 
 concepts::U
 
template<typename T , typename U >
CPP_concept concepts::totally_ordered_with
 
template<typename T >
CPP_concept concepts::destructible
 
template<typename T , typename... Args>
CPP_concept concepts::constructible_from
 
template<typename T >
CPP_concept concepts::default_constructible
 
template<typename T >
CPP_concept concepts::move_constructible
 
constructible_from< T, T & > &&constructible_from< T, T const & > &&constructible_from< T, T const > &&convertible_to< T &, T > &&convertible_to< T const &, T > && concepts::convertible_to< T const, T >
 
template<typename T >
CPP_concept concepts::copy_constructible
 
assignable_from< T &, T > concepts::assignable_from< T &, T >
 
template<typename T >
CPP_concept concepts::movable
 
assignable_from< T &, T const & > concepts::assignable_from< T &, T const & >
 
template<typename T >
CPP_concept concepts::copyable
 
template<typename T >
CPP_concept concepts::semiregular
 
template<typename T >
CPP_concept concepts::regular
 

Macro Definition Documentation

◆ CPP_assert

#define CPP_assert (   ...)
Value:
static_assert(static_cast<bool>(__VA_ARGS__), \
"Concept assertion failed : " #__VA_ARGS__)

◆ CPP_AUTO_FUN_DECLTYPE_NOEXCEPT_

#define CPP_AUTO_FUN_DECLTYPE_NOEXCEPT_ (   ...)
Value:
noexcept(noexcept(decltype(__VA_ARGS__)(__VA_ARGS__))) -> \
decltype(__VA_ARGS__) \
{ return (__VA_ARGS__); }

INTERNAL ONLY.

◆ CPP_AUTO_FUN_RETURNS_

#define CPP_AUTO_FUN_RETURNS_ (   ...)
Value:
CPP_PP_EVAL2_( \
(__VA_ARGS__,) \
)(__VA_ARGS__)
#define CPP_AUTO_FUN_SELECT_RETURNS_(MAYBE_CONST,...)
INTERNAL ONLY.
Definition concepts.hpp:666

INTERNAL ONLY.

◆ CPP_AUTO_FUN_RETURNS_CONST_0

#define CPP_AUTO_FUN_RETURNS_CONST_0 (   ...)
Value:
CPP_PP_CAT(CPP_AUTO_FUN_RETURNS_, __VA_ARGS__))
#define CPP_AUTO_FUN_RETURNS_(...)
INTERNAL ONLY.
Definition concepts.hpp:659
#define CPP_AUTO_FUN_DECLTYPE_NOEXCEPT_(...)
INTERNAL ONLY.
Definition concepts.hpp:704

INTERNAL ONLY.

◆ CPP_AUTO_FUN_SELECT_RETURNS_

#define CPP_AUTO_FUN_SELECT_RETURNS_ (   MAYBE_CONST,
  ... 
)
Value:
CPP_PP_CAT(CPP_AUTO_FUN_RETURNS_CONST_, \
CPP_PP_EVAL(CPP_PP_CHECK, CPP_PP_CAT( \
CPP_PP_PROBE_CONST_MUTABLE_PROBE_, MAYBE_CONST)))

INTERNAL ONLY.

◆ CPP_broken_friend_member

#define CPP_broken_friend_member
Value:
template<bool (&CPP_true_fn)(::concepts::detail::xNil) = \
::concepts::detail::CPP_true_fn>

INTERNAL ONLY.

◆ CPP_broken_friend_ret

#define CPP_broken_friend_ret (   ...)
Value:
::concepts::return_t< \
__VA_ARGS__, \
#define CPP_BROKEN_FRIEND_RETURN_TYPE_AUX_(...)
INTERNAL ONLY.
Definition concepts.hpp:428

◆ CPP_BROKEN_FRIEND_RETURN_TYPE_AUX_

#define CPP_BROKEN_FRIEND_RETURN_TYPE_AUX_ (   ...)
Value:
CPP_TEMPLATE_AUX_2_, __VA_ARGS__))
#define CPP_BROKEN_FRIEND_RETURN_TYPE_AUX_3_(...)
INTERNAL ONLY.
Definition concepts.hpp:436

INTERNAL ONLY.

◆ CPP_CONCEPT_NAME_

#define CPP_CONCEPT_NAME_ (   DECL)
Value:
CPP_PP_EVAL( \
CPP_PP_CAT, \
CPP_PP_EVAL(CPP_PP_FIRST, CPP_EAT_CONCEPT_(DECL)), concept_)
#define CPP_EAT_CONCEPT_(DECL)
INTERNAL ONLY.
Definition concepts.hpp:326

INTERNAL ONLY.

◆ CPP_concept_ref

#define CPP_concept_ref (   NAME,
  ... 
)
Value:
(1u == sizeof(CPP_PP_CAT(NAME, concept_)( \
(::concepts::detail::tag<__VA_ARGS__>*)nullptr)))

◆ CPP_ctor_sfinae

#define CPP_ctor_sfinae (   TYPE)
Value:
CPP_PP_IGNORE_CXX2A_COMPAT_BEGIN \
#define CPP_CTOR_SFINAE_IMPL_1_(...)
INTERNAL ONLY.
Definition concepts.hpp:365

INTERNAL ONLY.

◆ CPP_CTOR_SFINAE_IMPL_1_

#define CPP_CTOR_SFINAE_IMPL_1_ (   ...)
Value:
(__VA_ARGS__ \
CPP_PP_COMMA_IIF( \
CPP_PP_NOT(CPP_PP_IS_NOT_EMPTY(__VA_ARGS__))) \
#define CPP_CTOR_SFINAE_REQUIRES(...)
INTERNAL ONLY.
Definition concepts.hpp:380

INTERNAL ONLY.

◆ CPP_CTOR_SFINAE_REQUIRES

#define CPP_CTOR_SFINAE_REQUIRES (   ...)
Value:
CPP_PP_CAT( \
CPP_CTOR_SFINAE_REQUIRES_, \
CPP_PP_EVAL( \
CPP_PP_CHECK, \
CPP_CTOR_SFINAE_MAKE_PROBE(__VA_ARGS__,)))(__VA_ARGS__)
#define CPP_CTOR_SFINAE_MAKE_PROBE(FIRST,...)
INTERNAL ONLY.
Definition concepts.hpp:376

INTERNAL ONLY.

◆ CPP_CTOR_SFINAE_REQUIRES_0

#define CPP_CTOR_SFINAE_REQUIRES_0 (   ...)
Value:
std::enable_if_t< \
CPP_PP_CAT(CPP_TEMPLATE_SFINAE_AUX_3_, __VA_ARGS__) && CPP_TRUE_FN, \
::concepts::detail::Nil \
> = {}) \
CPP_PP_IGNORE_CXX2A_COMPAT_END

INTERNAL ONLY.

◆ CPP_CTOR_SFINAE_REQUIRES_1

#define CPP_CTOR_SFINAE_REQUIRES_1 (   ...)
Value:
std::enable_if_t< \
CPP_PP_EVAL(CPP_PP_CAT, \
CPP_TEMPLATE_SFINAE_AUX_3_, \
CPP_PP_CAT(CPP_CTOR_SFINAE_EAT_NOEXCEPT_, __VA_ARGS__)) && CPP_TRUE_FN,\
::concepts::detail::Nil \
> = {}) \
CPP_PP_EXPAND(CPP_PP_CAT(CPP_CTOR_SFINAE_SHOW_NOEXCEPT_, __VA_ARGS__)))

INTERNAL ONLY.

◆ CPP_CTOR_SFINAE_SHOW_NOEXCEPT_noexcept

#define CPP_CTOR_SFINAE_SHOW_NOEXCEPT_noexcept (   ...)
Value:
noexcept(__VA_ARGS__) \
CPP_PP_IGNORE_CXX2A_COMPAT_END \
CPP_PP_EAT CPP_PP_LPAREN

INTERNAL ONLY.

◆ CPP_FUN_IMPL_1_

#define CPP_FUN_IMPL_1_ (   ...)
Value:
(__VA_ARGS__ \
CPP_PP_COMMA_IIF( \
CPP_PP_NOT(CPP_PP_IS_NOT_EMPTY(__VA_ARGS__))) \
#define CPP_FUN_IMPL_REQUIRES(...)
INTERNAL ONLY.
Definition concepts.hpp:532

INTERNAL ONLY.

◆ CPP_FUN_IMPL_REQUIRES

#define CPP_FUN_IMPL_REQUIRES (   ...)
Value:
CPP_PP_EVAL2_( \
(__VA_ARGS__,) \
)(__VA_ARGS__)
#define CPP_FUN_IMPL_SELECT_CONST_(MAYBE_CONST,...)
INTERNAL ONLY.
Definition concepts.hpp:539

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_CONST_

#define CPP_FUN_IMPL_SELECT_CONST_ (   MAYBE_CONST,
  ... 
)
Value:
CPP_PP_EVAL(CPP_PP_CHECK, CPP_PP_CAT( \
CPP_PP_PROBE_CONST_PROBE_, MAYBE_CONST)))

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_CONST_0

#define CPP_FUN_IMPL_SELECT_CONST_0 (   ...)
Value:
CPP_PP_EVAL_( \
(__VA_ARGS__,) \
)(__VA_ARGS__)
#define CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_(MAYBE_NOEXCEPT,...)
INTERNAL ONLY.
Definition concepts.hpp:601

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_CONST_1

#define CPP_FUN_IMPL_SELECT_CONST_1 (   ...)
Value:
CPP_PP_EVAL( \
CPP_PP_CAT(CPP_FUN_IMPL_EAT_CONST_, __VA_ARGS__),)( \
CPP_PP_CAT(CPP_FUN_IMPL_EAT_CONST_, __VA_ARGS__))
#define CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_(MAYBE_NOEXCEPT,...)
INTERNAL ONLY.
Definition concepts.hpp:555

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_

#define CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_ (   MAYBE_NOEXCEPT,
  ... 
)
Value:
CPP_PP_EVAL2(CPP_PP_CHECK, CPP_PP_CAT( \
CPP_PP_PROBE_NOEXCEPT_PROBE_, MAYBE_NOEXCEPT)))

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_0

#define CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_0 (   ...)
Value:
std::enable_if_t< \
CPP_PP_EVAL( \
CPP_PP_CAT, \
CPP_FUN_IMPL_EAT_REQUIRES_, \
__VA_ARGS__) && CPP_TRUE_FN, \
::concepts::detail::Nil \
> = {}) const \
CPP_PP_IGNORE_CXX2A_COMPAT_END

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_1

#define CPP_FUN_IMPL_SELECT_CONST_NOEXCEPT_1 (   ...)
Value:
std::enable_if_t< \
CPP_PP_EVAL( \
CPP_PP_CAT, \
CPP_FUN_IMPL_EAT_REQUIRES_, \
CPP_PP_CAT(CPP_FUN_IMPL_EAT_NOEXCEPT_, __VA_ARGS__)) && CPP_TRUE_FN,\
::concepts::detail::Nil \
> = {}) const \
CPP_PP_EXPAND(CPP_PP_CAT(CPP_FUN_IMPL_SHOW_NOEXCEPT_, __VA_ARGS__)))

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_

#define CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_ (   MAYBE_NOEXCEPT,
  ... 
)
Value:
CPP_PP_EVAL2(CPP_PP_CHECK, CPP_PP_CAT( \
CPP_PP_PROBE_NOEXCEPT_PROBE_, MAYBE_NOEXCEPT)))

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_0

#define CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_0 (   ...)
Value:
std::enable_if_t< \
CPP_PP_CAT(CPP_FUN_IMPL_EAT_REQUIRES_, __VA_ARGS__) && CPP_TRUE_FN, \
::concepts::detail::Nil \
> = {}) \
CPP_PP_IGNORE_CXX2A_COMPAT_END

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_1

#define CPP_FUN_IMPL_SELECT_NONCONST_NOEXCEPT_1 (   ...)
Value:
std::enable_if_t< \
CPP_PP_EVAL( \
CPP_PP_CAT, \
CPP_FUN_IMPL_EAT_REQUIRES_, \
CPP_PP_CAT(CPP_FUN_IMPL_EAT_NOEXCEPT_, __VA_ARGS__) \
) && CPP_TRUE_FN, \
::concepts::detail::Nil \
> = {}) \
CPP_PP_EXPAND(CPP_PP_CAT(CPP_FUN_IMPL_SHOW_NOEXCEPT_, __VA_ARGS__)))

INTERNAL ONLY.

◆ CPP_FUN_IMPL_SHOW_NOEXCEPT_noexcept

#define CPP_FUN_IMPL_SHOW_NOEXCEPT_noexcept (   ...)
Value:
noexcept(__VA_ARGS__) CPP_PP_IGNORE_CXX2A_COMPAT_END \
CPP_PP_EAT CPP_PP_LPAREN

INTERNAL ONLY.

◆ CPP_PP_COUNT

#define CPP_PP_COUNT (   ...)
Value:
CPP_PP_EXPAND(CPP_PP_COUNT_(__VA_ARGS__, \
50, 49, 48, 47, 46, 45, 44, 43, 42, 41, \
40, 39, 38, 37, 36, 35, 34, 33, 32, 31, \
30, 29, 28, 27, 26, 25, 24, 23, 22, 21, \
20, 19, 18, 17, 16, 15, 14, 13, 12, 11, \
10, 9, 8, 7, 6, 5, 4, 3, 2, 1,))

◆ CPP_PP_IS_NOT_EMPTY

#define CPP_PP_IS_NOT_EMPTY (   ...)
Value:
CPP_PP_EVAL( \
CPP_PP_CHECK, \
CPP_PP_CAT( \
CPP_PP_PROBE_EMPTY_PROBE_, \
CPP_PP_PROBE_EMPTY __VA_ARGS__ ()))

◆ CPP_requires

#define CPP_requires (   NAME,
  REQS 
)
Value:
auto CPP_PP_CAT(NAME, requires_test_) \
CPP_REQUIRES_AUX_(NAME, CPP_REQUIRES_ ## REQS)

◆ CPP_REQUIRES_AUX_

#define CPP_REQUIRES_AUX_ (   NAME,
  ... 
)
Value:
__VA_ARGS__ \
template<typename... As> \
auto CPP_PP_CAT(NAME, requires_)( \
::concepts::detail::tag<As...> *, \
decltype(&CPP_PP_CAT(NAME, requires_test_)<As...>) = nullptr) \
-> char(&)[1]; \
auto CPP_PP_CAT(NAME, requires_)(...) -> char(&)[2]

INTERNAL ONLY.

◆ CPP_requires_ref

#define CPP_requires_ref (   NAME,
  ... 
)
Value:
(1u == sizeof(CPP_PP_CAT(NAME, requires_)( \
(::concepts::detail::tag<__VA_ARGS__>*)nullptr)))

◆ CPP_TEMPLATE_DEF_SFINAE_AUX_

#define CPP_TEMPLATE_DEF_SFINAE_AUX_ (   ...)
Value:
, \
bool CPP_true, \
std::enable_if_t< \
CPP_PP_CAT(CPP_TEMPLATE_SFINAE_AUX_3_, __VA_ARGS__) && \
CPP_BOOL(CPP_true), \
int>>

INTERNAL ONLY.

◆ CPP_template_sfinae

#define CPP_template_sfinae (   ...)
Value:
CPP_PP_IGNORE_CXX2A_COMPAT_BEGIN \
template<__VA_ARGS__ CPP_TEMPLATE_SFINAE_AUX_
#define CPP_TEMPLATE_SFINAE_AUX_(...)
INTERNAL ONLY.
Definition concepts.hpp:289

◆ CPP_TEMPLATE_SFINAE_AUX_

#define CPP_TEMPLATE_SFINAE_AUX_ (   ...)
Value:
CPP_PP_CAT( \
CPP_TEMPLATE_SFINAE_AUX_WHICH_(__VA_ARGS__,))(__VA_ARGS__)
#define CPP_TEMPLATE_SFINAE_AUX_WHICH_(FIRST,...)
INTERNAL ONLY.
Definition concepts.hpp:283

INTERNAL ONLY.

◆ CPP_TEMPLATE_SFINAE_AUX_0

#define CPP_TEMPLATE_SFINAE_AUX_0 (   ...)
Value:
, \
bool CPP_true = true, \
std::enable_if_t< \
CPP_PP_CAT(CPP_TEMPLATE_SFINAE_AUX_3_, __VA_ARGS__) && \
CPP_BOOL(CPP_true), \
int> = 0> \
CPP_PP_IGNORE_CXX2A_COMPAT_END

INTERNAL ONLY.

◆ CPP_TEMPLATE_SFINAE_AUX_1

#define CPP_TEMPLATE_SFINAE_AUX_1 (   DECL,
  ... 
)
Value:
, \
bool CPP_true = true, \
std::enable_if_t<__VA_ARGS__ && CPP_BOOL(CPP_true), int> = 0> \
auto CPP_CONCEPT_NAME_(DECL)( \
::concepts::detail::tag<CPP_CONCEPT_PARAMS_(DECL)>*) \
-> char(&)[1]; \
auto CPP_CONCEPT_NAME_(DECL)(...) -> char(&)[2] \
CPP_PP_IGNORE_CXX2A_COMPAT_END
#define CPP_CONCEPT_NAME_(DECL)
INTERNAL ONLY.
Definition concepts.hpp:316
#define CPP_CONCEPT_PARAMS_(DECL)
INTERNAL ONLY.
Definition concepts.hpp:322

INTERNAL ONLY.

◆ CPP_TEMPLATE_SFINAE_AUX_WHICH_

#define CPP_TEMPLATE_SFINAE_AUX_WHICH_ (   FIRST,
  ... 
)
Value:
CPP_PP_EVAL( \
CPP_PP_CHECK, \
CPP_PP_CAT(CPP_TEMPLATE_SFINAE_PROBE_CONCEPT_, FIRST))

INTERNAL ONLY.

Variable Documentation

◆ and_v

template<bool... Bs>
CPP_INLINE_VAR constexpr bool concepts::and_v
constexpr
Initial value:
=
META_IS_SAME(detail::bools<Bs..., true>, detail::bools<true, Bs...>)

◆ assignable_from

template<typename T , typename U >
CPP_concept concepts::defs::assignable_from
Initial value:
=
std::is_lvalue_reference<T>::value &&
CPP_requires_ref(defs::assignable_from_, T, U)
The assignable_from_ concept.
The common_reference_with concept.

◆ boolean_testable_

template<typename T >
CPP_concept concepts::detail::boolean_testable_
Initial value:
=
CPP_requires_ref(boolean_testable_frag_, T) &&
The boolean_testable_frag_ concept.
The boolean_testable_impl_ concept.

◆ common_reference_with

template<typename T , typename U >
CPP_concept concepts::defs::common_reference_with
Initial value:
=
CPP_concept_ref(concepts::common_reference_with_, T, U)

◆ common_with

template<typename T , typename U >
CPP_concept concepts::defs::common_with
Initial value:
=
CPP_concept_ref(concepts::common_with_, T, U)

◆ constructible_from

template<typename T , typename... Args>
CPP_concept concepts::defs::constructible_from
Initial value:
=
META_IS_CONSTRUCTIBLE(T, Args...)
The destructible concept.

◆ convertible_to

template<typename From , typename To >
CPP_concept concepts::defs::convertible_to

◆ copy_constructible

template<typename T >
CPP_concept concepts::defs::copy_constructible
Initial value:
=
CPP_concept_ref(concepts::copy_constructible_, T)
The move_constructible concept.

◆ copyable

template<typename T >
CPP_concept concepts::defs::copyable
Initial value:
=
CPP_concept_ref(concepts::copy_assignable_, T)
The copy_constructible concept.
The movable concept.

◆ default_constructible

template<typename T >
CPP_concept concepts::defs::default_constructible
Initial value:

◆ derived_from

template<typename T , typename U >
CPP_concept concepts::defs::derived_from
Initial value:
=
META_IS_BASE_OF(U, T) &&
CPP_concept_ref(concepts::derived_from_, T, U)

◆ destructible

template<typename T >
CPP_concept concepts::defs::destructible
Initial value:
=
std::is_nothrow_destructible<T>::value

◆ equality_comparable

template<typename T >
CPP_concept concepts::defs::equality_comparable
Initial value:

◆ equality_comparable_with

template<typename T , typename U >
CPP_concept concepts::defs::equality_comparable_with
Initial value:
=
CPP_concept_ref(concepts::equality_comparable_with_, T, U)
The equality_comparable concept.

◆ explicitly_convertible_to

template<typename From , typename To >
CPP_concept concepts::defs::explicitly_convertible_to
Initial value:
=
CPP_requires_ref(concepts::explicitly_convertible_to_, From, To)

◆ implicitly_convertible_to

template<typename From , typename To >
CPP_concept concepts::defs::implicitly_convertible_to
Initial value:
=
std::is_convertible<std::add_rvalue_reference_t<From>, To>::value

◆ integral

template<typename T >
CPP_concept concepts::defs::integral
Initial value:
=
std::is_integral<T>::value

◆ movable

template<typename T >
CPP_concept concepts::defs::movable
Initial value:
=
std::is_object<T>::value &&
CPP_concept_ref(concepts::move_assignable_, T) &&
The swappable concept.

◆ move_constructible

template<typename T >
CPP_concept concepts::defs::move_constructible
Initial value:

◆ or_v

template<bool... Bs>
CPP_INLINE_VAR constexpr bool concepts::or_v
constexpr
Initial value:
=
!META_IS_SAME(detail::bools<Bs..., false>, detail::bools<false, Bs...>)

◆ partially_ordered_with_

template<typename T , typename U >
CPP_concept concepts::detail::partially_ordered_with_
Initial value:
=
CPP_requires_ref(partially_ordered_with_frag_, T, U)
The partially_ordered_with_frag_ concept.

◆ regular

template<typename T >
CPP_concept concepts::defs::regular
Initial value:

◆ same_as

template<typename A , typename B >
CPP_concept concepts::defs::same_as
Initial value:
=
META_IS_SAME(A, B) && META_IS_SAME(B, A)

◆ satisfies

template<class T , template< typename... > class Trait, typename... Args>
CPP_concept concepts::defs::satisfies
Initial value:
=
static_cast<bool>(Trait<T, Args...>::type::value)

◆ semiregular

template<typename T >
CPP_concept concepts::defs::semiregular
Initial value:
=
The copyable concept.
The default_constructible concept.

◆ signed_integral

template<typename T >
CPP_concept concepts::defs::signed_integral
Initial value:
=
std::is_signed<T>::value
The integral concept.

◆ swappable

template<typename T >
CPP_concept concepts::defs::swappable
Initial value:
=
CPP_requires_ref(defs::swappable_, T)
The swappable_ concept.

◆ swappable_with

template<typename T , typename U >
CPP_concept concepts::defs::swappable_with
Initial value:
=
CPP_requires_ref(defs::swappable_with_, T, U)
The swappable_with_ concept.

◆ totally_ordered

template<typename T >
CPP_concept concepts::defs::totally_ordered

◆ totally_ordered_with

template<typename T , typename U >
CPP_concept concepts::defs::totally_ordered_with
Initial value:
=
CPP_concept_ref(concepts::totally_ordered_with_, T, U)
The equality_comparable_with concept.
The totally_ordered concept.

◆ unsigned_integral

template<typename T >
CPP_concept concepts::defs::unsigned_integral
Initial value:

◆ weakly_equality_comparable_with_

template<typename T , typename U >
CPP_concept concepts::detail::weakly_equality_comparable_with_
Initial value:
=
CPP_requires_ref(weakly_equality_comparable_with_frag_, T, U)
The weakly_equality_comparable_with_frag_ concept.