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31cb7fe75e
darling-libcxx/include/type_traits
Eric Fiselier 31cb7fe75e [libcxx] Properly convert the count arguments to the *_n algorithms before use. 
Summary:
The requirement on the `Size` type passed to *_n algorithms is that it is convertible to an integral type. This means we can't use a variable of type `Size` directly. Instead we need to convert it to an integral type first.  The problem is finding out what integral type to convert it to.  `__convert_to_integral` figures out what integral type to convert it to and performs the conversion, It also promotes the resulting integral type so that it is at least as big as an integer. `__convert_to_integral` also has a special case for converting enums. This should only work on non-scoped enumerations because it does not apply an explicit conversion from the enum to its underlying type.



Reviewers: chandlerc, mclow.lists

Reviewed By: mclow.lists

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D7449

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@228704 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-10 16:46:42 +00:00

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// -*- C++ -*-
//===------------------------ type_traits ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_TYPE_TRAITS
#define _LIBCPP_TYPE_TRAITS
/*
type_traits synopsis
namespace std
{
// helper class:
template <class T, T v> struct integral_constant;
typedef integral_constant<bool, true> true_type;
typedef integral_constant<bool, false> false_type;
// helper traits
template <bool, class T = void> struct enable_if;
template <bool, class T, class F> struct conditional;
// Primary classification traits:
template <class T> struct is_void;
template <class T> struct is_null_pointer; // C++14
template <class T> struct is_integral;
template <class T> struct is_floating_point;
template <class T> struct is_array;
template <class T> struct is_pointer;
template <class T> struct is_lvalue_reference;
template <class T> struct is_rvalue_reference;
template <class T> struct is_member_object_pointer;
template <class T> struct is_member_function_pointer;
template <class T> struct is_enum;
template <class T> struct is_union;
template <class T> struct is_class;
template <class T> struct is_function;
// Secondary classification traits:
template <class T> struct is_reference;
template <class T> struct is_arithmetic;
template <class T> struct is_fundamental;
template <class T> struct is_member_pointer;
template <class T> struct is_scalar;
template <class T> struct is_object;
template <class T> struct is_compound;
// Const-volatile properties and transformations:
template <class T> struct is_const;
template <class T> struct is_volatile;
template <class T> struct remove_const;
template <class T> struct remove_volatile;
template <class T> struct remove_cv;
template <class T> struct add_const;
template <class T> struct add_volatile;
template <class T> struct add_cv;
// Reference transformations:
template <class T> struct remove_reference;
template <class T> struct add_lvalue_reference;
template <class T> struct add_rvalue_reference;
// Pointer transformations:
template <class T> struct remove_pointer;
template <class T> struct add_pointer;
// Integral properties:
template <class T> struct is_signed;
template <class T> struct is_unsigned;
template <class T> struct make_signed;
template <class T> struct make_unsigned;
// Array properties and transformations:
template <class T> struct rank;
template <class T, unsigned I = 0> struct extent;
template <class T> struct remove_extent;
template <class T> struct remove_all_extents;
// Member introspection:
template <class T> struct is_pod;
template <class T> struct is_trivial;
template <class T> struct is_trivially_copyable;
template <class T> struct is_standard_layout;
template <class T> struct is_literal_type;
template <class T> struct is_empty;
template <class T> struct is_polymorphic;
template <class T> struct is_abstract;
template <class T> struct is_final; // C++14
template <class T, class... Args> struct is_constructible;
template <class T> struct is_default_constructible;
template <class T> struct is_copy_constructible;
template <class T> struct is_move_constructible;
template <class T, class U> struct is_assignable;
template <class T> struct is_copy_assignable;
template <class T> struct is_move_assignable;
template <class T> struct is_destructible;
template <class T, class... Args> struct is_trivially_constructible;
template <class T> struct is_trivially_default_constructible;
template <class T> struct is_trivially_copy_constructible;
template <class T> struct is_trivially_move_constructible;
template <class T, class U> struct is_trivially_assignable;
template <class T> struct is_trivially_copy_assignable;
template <class T> struct is_trivially_move_assignable;
template <class T> struct is_trivially_destructible;
template <class T, class... Args> struct is_nothrow_constructible;
template <class T> struct is_nothrow_default_constructible;
template <class T> struct is_nothrow_copy_constructible;
template <class T> struct is_nothrow_move_constructible;
template <class T, class U> struct is_nothrow_assignable;
template <class T> struct is_nothrow_copy_assignable;
template <class T> struct is_nothrow_move_assignable;
template <class T> struct is_nothrow_destructible;
template <class T> struct has_virtual_destructor;
// Relationships between types:
template <class T, class U> struct is_same;
template <class Base, class Derived> struct is_base_of;
template <class From, class To> struct is_convertible;
// Alignment properties and transformations:
template <class T> struct alignment_of;
template <size_t Len, size_t Align = most_stringent_alignment_requirement>
struct aligned_storage;
template <size_t Len, class... Types> struct aligned_union;
template <class T> struct decay;
template <class... T> struct common_type;
template <class T> struct underlying_type;
template <class> class result_of; // undefined
template <class Fn, class... ArgTypes> class result_of<Fn(ArgTypes...)>;
// const-volatile modifications:
template <class T>
using remove_const_t = typename remove_const<T>::type; // C++14
template <class T>
using remove_volatile_t = typename remove_volatile<T>::type; // C++14
template <class T>
using remove_cv_t = typename remove_cv<T>::type; // C++14
template <class T>
using add_const_t = typename add_const<T>::type; // C++14
template <class T>
using add_volatile_t = typename add_volatile<T>::type; // C++14
template <class T>
using add_cv_t = typename add_cv<T>::type; // C++14
// reference modifications:
template <class T>
using remove_reference_t = typename remove_reference<T>::type; // C++14
template <class T>
using add_lvalue_reference_t = typename add_lvalue_reference<T>::type; // C++14
template <class T>
using add_rvalue_reference_t = typename add_rvalue_reference<T>::type; // C++14
// sign modifications:
template <class T>
using make_signed_t = typename make_signed<T>::type; // C++14
template <class T>
using make_unsigned_t = typename make_unsigned<T>::type; // C++14
// array modifications:
template <class T>
using remove_extent_t = typename remove_extent<T>::type; // C++14
template <class T>
using remove_all_extents_t = typename remove_all_extents<T>::type; // C++14
// pointer modifications:
template <class T>
using remove_pointer_t = typename remove_pointer<T>::type; // C++14
template <class T>
using add_pointer_t = typename add_pointer<T>::type; // C++14
// other transformations:
template <size_t Len, std::size_t Align=default-alignment>
using aligned_storage_t = typename aligned_storage<Len,Align>::type; // C++14
template <std::size_t Len, class... Types>
using aligned_union_t = typename aligned_union<Len,Types...>::type; // C++14
template <class T>
using decay_t = typename decay<T>::type; // C++14
template <bool b, class T=void>
using enable_if_t = typename enable_if<b,T>::type; // C++14
template <bool b, class T, class F>
using conditional_t = typename conditional<b,T,F>::type; // C++14
template <class... T>
using common_type_t = typename common_type<T...>::type; // C++14
template <class T>
using underlying_type_t = typename underlying_type<T>::type; // C++14
template <class F, class... ArgTypes>
using result_of_t = typename result_of<F(ArgTypes...)>::type; // C++14
template <class...>
using void_t = void;
} // C++17
*/
#include <__config>
#include <cstddef>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class...>
struct __void_t { typedef void type; };
#endif
template <bool _Bp, class _If, class _Then>
struct _LIBCPP_TYPE_VIS_ONLY conditional {typedef _If type;};
template <class _If, class _Then>
struct _LIBCPP_TYPE_VIS_ONLY conditional<false, _If, _Then> {typedef _Then type;};
#if _LIBCPP_STD_VER > 11
template <bool _Bp, class _If, class _Then> using conditional_t = typename conditional<_Bp, _If, _Then>::type;
#endif
template <bool, class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __lazy_enable_if {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __lazy_enable_if<true, _Tp> {typedef typename _Tp::type type;};
template <bool, class _Tp = void> struct _LIBCPP_TYPE_VIS_ONLY enable_if {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY enable_if<true, _Tp> {typedef _Tp type;};
#if _LIBCPP_STD_VER > 11
template <bool _Bp, class _Tp = void> using enable_if_t = typename enable_if<_Bp, _Tp>::type;
#endif
struct __two {char __lx[2];};
// helper class:
template <class _Tp, _Tp __v>
struct _LIBCPP_TYPE_VIS_ONLY integral_constant
{
static _LIBCPP_CONSTEXPR const _Tp value = __v;
typedef _Tp value_type;
typedef integral_constant type;
_LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR operator value_type() const _NOEXCEPT {return value;}
#if _LIBCPP_STD_VER > 11
_LIBCPP_INLINE_VISIBILITY
constexpr value_type operator ()() const _NOEXCEPT {return value;}
#endif
};
template <class _Tp, _Tp __v>
_LIBCPP_CONSTEXPR const _Tp integral_constant<_Tp, __v>::value;
typedef integral_constant<bool, true> true_type;
typedef integral_constant<bool, false> false_type;
// is_const
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_const<_Tp const> : public true_type {};
// is_volatile
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_volatile<_Tp volatile> : public true_type {};
// remove_const
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const {typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_const<const _Tp> {typedef _Tp type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using remove_const_t = typename remove_const<_Tp>::type;
#endif
// remove_volatile
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_volatile {typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_volatile<volatile _Tp> {typedef _Tp type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using remove_volatile_t = typename remove_volatile<_Tp>::type;
#endif
// remove_cv
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_cv
{typedef typename remove_volatile<typename remove_const<_Tp>::type>::type type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using remove_cv_t = typename remove_cv<_Tp>::type;
#endif
// is_void
template <class _Tp> struct __libcpp_is_void : public false_type {};
template <> struct __libcpp_is_void<void> : public true_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_void
: public __libcpp_is_void<typename remove_cv<_Tp>::type> {};
// __is_nullptr_t
template <class _Tp> struct __is_nullptr_t_impl : public false_type {};
template <> struct __is_nullptr_t_impl<nullptr_t> : public true_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY __is_nullptr_t
: public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {};
#if _LIBCPP_STD_VER > 11
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_null_pointer
: public __is_nullptr_t_impl<typename remove_cv<_Tp>::type> {};
#endif
// is_integral
template <class _Tp> struct __libcpp_is_integral : public false_type {};
template <> struct __libcpp_is_integral<bool> : public true_type {};
template <> struct __libcpp_is_integral<char> : public true_type {};
template <> struct __libcpp_is_integral<signed char> : public true_type {};
template <> struct __libcpp_is_integral<unsigned char> : public true_type {};
template <> struct __libcpp_is_integral<wchar_t> : public true_type {};
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
template <> struct __libcpp_is_integral<char16_t> : public true_type {};
template <> struct __libcpp_is_integral<char32_t> : public true_type {};
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
template <> struct __libcpp_is_integral<short> : public true_type {};
template <> struct __libcpp_is_integral<unsigned short> : public true_type {};
template <> struct __libcpp_is_integral<int> : public true_type {};
template <> struct __libcpp_is_integral<unsigned int> : public true_type {};
template <> struct __libcpp_is_integral<long> : public true_type {};
template <> struct __libcpp_is_integral<unsigned long> : public true_type {};
template <> struct __libcpp_is_integral<long long> : public true_type {};
template <> struct __libcpp_is_integral<unsigned long long> : public true_type {};
#ifndef _LIBCPP_HAS_NO_INT128
template <> struct __libcpp_is_integral<__int128_t> : public true_type {};
template <> struct __libcpp_is_integral<__uint128_t> : public true_type {};
#endif
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_integral
: public __libcpp_is_integral<typename remove_cv<_Tp>::type> {};
// is_floating_point
template <class _Tp> struct __libcpp_is_floating_point : public false_type {};
template <> struct __libcpp_is_floating_point<float> : public true_type {};
template <> struct __libcpp_is_floating_point<double> : public true_type {};
template <> struct __libcpp_is_floating_point<long double> : public true_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_floating_point
: public __libcpp_is_floating_point<typename remove_cv<_Tp>::type> {};
// is_array
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array
: public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[]>
: public true_type {};
template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY is_array<_Tp[_Np]>
: public true_type {};
// is_pointer
template <class _Tp> struct __libcpp_is_pointer : public false_type {};
template <class _Tp> struct __libcpp_is_pointer<_Tp*> : public true_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pointer
: public __libcpp_is_pointer<typename remove_cv<_Tp>::type> {};
// is_reference
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_lvalue_reference<_Tp&> : public true_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_rvalue_reference : public false_type {};
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_rvalue_reference<_Tp&&> : public true_type {};
#endif
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&> : public true_type {};
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_reference<_Tp&&> : public true_type {};
#endif
// is_union
#if __has_feature(is_union) || (_GNUC_VER >= 403)
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union
: public integral_constant<bool, __is_union(_Tp)> {};
#else
template <class _Tp> struct __libcpp_union : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_union
: public __libcpp_union<typename remove_cv<_Tp>::type> {};
#endif
// is_class
#if __has_feature(is_class) || (_GNUC_VER >= 403)
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class
: public integral_constant<bool, __is_class(_Tp)> {};
#else
namespace __is_class_imp
{
template <class _Tp> char __test(int _Tp::*);
template <class _Tp> __two __test(...);
}
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_class
: public integral_constant<bool, sizeof(__is_class_imp::__test<_Tp>(0)) == 1 && !is_union<_Tp>::value> {};
#endif
// is_same
template <class _Tp, class _Up> struct _LIBCPP_TYPE_VIS_ONLY is_same : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_same<_Tp, _Tp> : public true_type {};
// is_function
namespace __libcpp_is_function_imp
{
template <class _Tp> char __test(_Tp*);
template <class _Tp> __two __test(...);
template <class _Tp> _Tp& __source();
}
template <class _Tp, bool = is_class<_Tp>::value ||
is_union<_Tp>::value ||
is_void<_Tp>::value ||
is_reference<_Tp>::value ||
__is_nullptr_t<_Tp>::value >
struct __libcpp_is_function
: public integral_constant<bool, sizeof(__libcpp_is_function_imp::__test<_Tp>(__libcpp_is_function_imp::__source<_Tp>())) == 1>
{};
template <class _Tp> struct __libcpp_is_function<_Tp, true> : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_function
: public __libcpp_is_function<_Tp> {};
// is_member_function_pointer
// template <class _Tp> struct __libcpp_is_member_function_pointer : public false_type {};
// template <class _Tp, class _Up> struct __libcpp_is_member_function_pointer<_Tp _Up::*> : public is_function<_Tp> {};
//
template <class _MP, bool _IsMemberFuctionPtr, bool _IsMemberObjectPtr>
struct __member_pointer_traits_imp
{ // forward declaration; specializations later
};
namespace __libcpp_is_member_function_pointer_imp {
template <typename _Tp>
char __test(typename std::__member_pointer_traits_imp<_Tp, true, false>::_FnType *);
template <typename>
std::__two __test(...);
};
template <class _Tp> struct __libcpp_is_member_function_pointer
: public integral_constant<bool, sizeof(__libcpp_is_member_function_pointer_imp::__test<_Tp>(nullptr)) == 1> {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_function_pointer
: public __libcpp_is_member_function_pointer<typename remove_cv<_Tp>::type> {};
// is_member_pointer
template <class _Tp> struct __libcpp_is_member_pointer : public false_type {};
template <class _Tp, class _Up> struct __libcpp_is_member_pointer<_Tp _Up::*> : public true_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_pointer
: public __libcpp_is_member_pointer<typename remove_cv<_Tp>::type> {};
// is_member_object_pointer
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_member_object_pointer
: public integral_constant<bool, is_member_pointer<_Tp>::value &&
!is_member_function_pointer<_Tp>::value> {};
// is_enum
#if __has_feature(is_enum) || (_GNUC_VER >= 403)
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum
: public integral_constant<bool, __is_enum(_Tp)> {};
#else
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_enum
: public integral_constant<bool, !is_void<_Tp>::value &&
!is_integral<_Tp>::value &&
!is_floating_point<_Tp>::value &&
!is_array<_Tp>::value &&
!is_pointer<_Tp>::value &&
!is_reference<_Tp>::value &&
!is_member_pointer<_Tp>::value &&
!is_union<_Tp>::value &&
!is_class<_Tp>::value &&
!is_function<_Tp>::value > {};
#endif
// is_arithmetic
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_arithmetic
: public integral_constant<bool, is_integral<_Tp>::value ||
is_floating_point<_Tp>::value> {};
// is_fundamental
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_fundamental
: public integral_constant<bool, is_void<_Tp>::value ||
__is_nullptr_t<_Tp>::value ||
is_arithmetic<_Tp>::value> {};
// is_scalar
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_scalar
: public integral_constant<bool, is_arithmetic<_Tp>::value ||
is_member_pointer<_Tp>::value ||
is_pointer<_Tp>::value ||
__is_nullptr_t<_Tp>::value ||
is_enum<_Tp>::value > {};
template <> struct _LIBCPP_TYPE_VIS_ONLY is_scalar<nullptr_t> : public true_type {};
// is_object
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_object
: public integral_constant<bool, is_scalar<_Tp>::value ||
is_array<_Tp>::value ||
is_union<_Tp>::value ||
is_class<_Tp>::value > {};
// is_compound
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_compound
: public integral_constant<bool, !is_fundamental<_Tp>::value> {};
// add_const
template <class _Tp, bool = is_reference<_Tp>::value ||
is_function<_Tp>::value ||
is_const<_Tp>::value >
struct __add_const {typedef _Tp type;};
template <class _Tp>
struct __add_const<_Tp, false> {typedef const _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_const
{typedef typename __add_const<_Tp>::type type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using add_const_t = typename add_const<_Tp>::type;
#endif
// add_volatile
template <class _Tp, bool = is_reference<_Tp>::value ||
is_function<_Tp>::value ||
is_volatile<_Tp>::value >
struct __add_volatile {typedef _Tp type;};
template <class _Tp>
struct __add_volatile<_Tp, false> {typedef volatile _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_volatile
{typedef typename __add_volatile<_Tp>::type type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using add_volatile_t = typename add_volatile<_Tp>::type;
#endif
// add_cv
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_cv
{typedef typename add_const<typename add_volatile<_Tp>::type>::type type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using add_cv_t = typename add_cv<_Tp>::type;
#endif
// remove_reference
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference {typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference<_Tp&> {typedef _Tp type;};
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_reference<_Tp&&> {typedef _Tp type;};
#endif
#if _LIBCPP_STD_VER > 11
template <class _Tp> using remove_reference_t = typename remove_reference<_Tp>::type;
#endif
// add_lvalue_reference
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference {typedef _Tp& type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<_Tp&> {typedef _Tp& type;}; // for older compiler
template <> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<void> {typedef void type;};
template <> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<const void> {typedef const void type;};
template <> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<volatile void> {typedef volatile void type;};
template <> struct _LIBCPP_TYPE_VIS_ONLY add_lvalue_reference<const volatile void> {typedef const volatile void type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using add_lvalue_reference_t = typename add_lvalue_reference<_Tp>::type;
#endif
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference {typedef _Tp&& type;};
template <> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference<void> {typedef void type;};
template <> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference<const void> {typedef const void type;};
template <> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference<volatile void> {typedef volatile void type;};
template <> struct _LIBCPP_TYPE_VIS_ONLY add_rvalue_reference<const volatile void> {typedef const volatile void type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using add_rvalue_reference_t = typename add_rvalue_reference<_Tp>::type;
#endif
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>
typename add_rvalue_reference<_Tp>::type
declval() _NOEXCEPT;
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>
typename add_lvalue_reference<_Tp>::type
declval();
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
struct __any
{
__any(...);
};
// remove_pointer
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer {typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp*> {typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* const> {typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* volatile> {typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_pointer<_Tp* const volatile> {typedef _Tp type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using remove_pointer_t = typename remove_pointer<_Tp>::type;
#endif
// add_pointer
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY add_pointer
{typedef typename remove_reference<_Tp>::type* type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using add_pointer_t = typename add_pointer<_Tp>::type;
#endif
// is_signed
template <class _Tp, bool = is_integral<_Tp>::value>
struct __libcpp_is_signed_impl : public integral_constant<bool, _Tp(-1) < _Tp(0)> {};
template <class _Tp>
struct __libcpp_is_signed_impl<_Tp, false> : public true_type {}; // floating point
template <class _Tp, bool = is_arithmetic<_Tp>::value>
struct __libcpp_is_signed : public __libcpp_is_signed_impl<_Tp> {};
template <class _Tp> struct __libcpp_is_signed<_Tp, false> : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_signed : public __libcpp_is_signed<_Tp> {};
// is_unsigned
template <class _Tp, bool = is_integral<_Tp>::value>
struct __libcpp_is_unsigned_impl : public integral_constant<bool, _Tp(0) < _Tp(-1)> {};
template <class _Tp>
struct __libcpp_is_unsigned_impl<_Tp, false> : public false_type {}; // floating point
template <class _Tp, bool = is_arithmetic<_Tp>::value>
struct __libcpp_is_unsigned : public __libcpp_is_unsigned_impl<_Tp> {};
template <class _Tp> struct __libcpp_is_unsigned<_Tp, false> : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_unsigned : public __libcpp_is_unsigned<_Tp> {};
// rank
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank
: public integral_constant<size_t, 0> {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY rank<_Tp[]>
: public integral_constant<size_t, rank<_Tp>::value + 1> {};
template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY rank<_Tp[_Np]>
: public integral_constant<size_t, rank<_Tp>::value + 1> {};
// extent
template <class _Tp, unsigned _Ip = 0> struct _LIBCPP_TYPE_VIS_ONLY extent
: public integral_constant<size_t, 0> {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[], 0>
: public integral_constant<size_t, 0> {};
template <class _Tp, unsigned _Ip> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[], _Ip>
: public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {};
template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[_Np], 0>
: public integral_constant<size_t, _Np> {};
template <class _Tp, size_t _Np, unsigned _Ip> struct _LIBCPP_TYPE_VIS_ONLY extent<_Tp[_Np], _Ip>
: public integral_constant<size_t, extent<_Tp, _Ip-1>::value> {};
// remove_extent
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_extent
{typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_extent<_Tp[]>
{typedef _Tp type;};
template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY remove_extent<_Tp[_Np]>
{typedef _Tp type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using remove_extent_t = typename remove_extent<_Tp>::type;
#endif
// remove_all_extents
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents
{typedef _Tp type;};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents<_Tp[]>
{typedef typename remove_all_extents<_Tp>::type type;};
template <class _Tp, size_t _Np> struct _LIBCPP_TYPE_VIS_ONLY remove_all_extents<_Tp[_Np]>
{typedef typename remove_all_extents<_Tp>::type type;};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using remove_all_extents_t = typename remove_all_extents<_Tp>::type;
#endif
// decay
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY decay
{
private:
typedef typename remove_reference<_Tp>::type _Up;
public:
typedef typename conditional
<
is_array<_Up>::value,
typename remove_extent<_Up>::type*,
typename conditional
<
is_function<_Up>::value,
typename add_pointer<_Up>::type,
typename remove_cv<_Up>::type
>::type
>::type type;
};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using decay_t = typename decay<_Tp>::type;
#endif
// is_abstract
namespace __is_abstract_imp
{
template <class _Tp> char __test(_Tp (*)[1]);
template <class _Tp> __two __test(...);
}
template <class _Tp, bool = is_class<_Tp>::value>
struct __libcpp_abstract : public integral_constant<bool, sizeof(__is_abstract_imp::__test<_Tp>(0)) != 1> {};
template <class _Tp> struct __libcpp_abstract<_Tp, false> : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_abstract : public __libcpp_abstract<_Tp> {};
// is_final
#if _LIBCPP_STD_VER > 11 && __has_feature(is_final)
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY
is_final : public integral_constant<bool, __is_final(_Tp)> {};
#endif
// is_base_of
#ifdef _LIBCPP_HAS_IS_BASE_OF
template <class _Bp, class _Dp>
struct _LIBCPP_TYPE_VIS_ONLY is_base_of
: public integral_constant<bool, __is_base_of(_Bp, _Dp)> {};
#else // _LIBCPP_HAS_IS_BASE_OF
namespace __is_base_of_imp
{
template <class _Tp>
struct _Dst
{
_Dst(const volatile _Tp &);
};
template <class _Tp>
struct _Src
{
operator const volatile _Tp &();
template <class _Up> operator const _Dst<_Up> &();
};
template <size_t> struct __one { typedef char type; };
template <class _Bp, class _Dp> typename __one<sizeof(_Dst<_Bp>(declval<_Src<_Dp> >()))>::type __test(int);
template <class _Bp, class _Dp> __two __test(...);
}
template <class _Bp, class _Dp>
struct _LIBCPP_TYPE_VIS_ONLY is_base_of
: public integral_constant<bool, is_class<_Bp>::value &&
sizeof(__is_base_of_imp::__test<_Bp, _Dp>(0)) == 2> {};
#endif // _LIBCPP_HAS_IS_BASE_OF
// is_convertible
#if __has_feature(is_convertible_to)
template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible
: public integral_constant<bool, __is_convertible_to(_T1, _T2) &&
!is_abstract<_T2>::value> {};
#else // __has_feature(is_convertible_to)
namespace __is_convertible_imp
{
template <class _Tp> char __test(_Tp);
template <class _Tp> __two __test(...);
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp> _Tp&& __source();
#else
template <class _Tp> typename remove_reference<_Tp>::type& __source();
#endif
template <class _Tp, bool _IsArray = is_array<_Tp>::value,
bool _IsFunction = is_function<_Tp>::value,
bool _IsVoid = is_void<_Tp>::value>
struct __is_array_function_or_void {enum {value = 0};};
template <class _Tp> struct __is_array_function_or_void<_Tp, true, false, false> {enum {value = 1};};
template <class _Tp> struct __is_array_function_or_void<_Tp, false, true, false> {enum {value = 2};};
template <class _Tp> struct __is_array_function_or_void<_Tp, false, false, true> {enum {value = 3};};
}
template <class _Tp,
unsigned = __is_convertible_imp::__is_array_function_or_void<typename remove_reference<_Tp>::type>::value>
struct __is_convertible_check
{
static const size_t __v = 0;
};
template <class _Tp>
struct __is_convertible_check<_Tp, 0>
{
static const size_t __v = sizeof(_Tp);
};
template <class _T1, class _T2,
unsigned _T1_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T1>::value,
unsigned _T2_is_array_function_or_void = __is_convertible_imp::__is_array_function_or_void<_T2>::value>
struct __is_convertible
: public integral_constant<bool,
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
sizeof(__is_convertible_imp::__test<_T2>(__is_convertible_imp::__source<_T1>())) == 1
#else
sizeof(__is_convertible_imp::__test<_T2>(__is_convertible_imp::__source<_T1>())) == 1
&& !(!is_function<_T1>::value && !is_reference<_T1>::value && is_reference<_T2>::value
&& (!is_const<typename remove_reference<_T2>::type>::value
|| is_volatile<typename remove_reference<_T2>::type>::value)
&& (is_same<typename remove_cv<_T1>::type,
typename remove_cv<typename remove_reference<_T2>::type>::type>::value
|| is_base_of<typename remove_reference<_T2>::type, _T1>::value))
#endif
>
{};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 0> : false_type {};
template <class _T1> struct __is_convertible<_T1, const _T1&, 1, 0> : true_type {};
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _T1> struct __is_convertible<_T1, _T1&&, 1, 0> : true_type {};
template <class _T1> struct __is_convertible<_T1, const _T1&&, 1, 0> : true_type {};
template <class _T1> struct __is_convertible<_T1, volatile _T1&&, 1, 0> : true_type {};
template <class _T1> struct __is_convertible<_T1, const volatile _T1&&, 1, 0> : true_type {};
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _T1, class _T2> struct __is_convertible<_T1, _T2*, 1, 0>
: public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*>::value> {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2* const, 1, 0>
: public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*const>::value> {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2* volatile, 1, 0>
: public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*volatile>::value> {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2* const volatile, 1, 0>
: public integral_constant<bool, __is_convertible<typename remove_all_extents<_T1>::type*, _T2*const volatile>::value> {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 0> : public false_type {};
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _T1> struct __is_convertible<_T1, _T1&&, 2, 0> : public true_type {};
#endif
template <class _T1> struct __is_convertible<_T1, _T1&, 2, 0> : public true_type {};
template <class _T1> struct __is_convertible<_T1, _T1*, 2, 0> : public true_type {};
template <class _T1> struct __is_convertible<_T1, _T1*const, 2, 0> : public true_type {};
template <class _T1> struct __is_convertible<_T1, _T1*volatile, 2, 0> : public true_type {};
template <class _T1> struct __is_convertible<_T1, _T1*const volatile, 2, 0> : public true_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 0> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 1> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 1> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 1> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 1> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 2> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 2> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 2> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 2> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 0, 3> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 3> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 2, 3> : public false_type {};
template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 3, 3> : public true_type {};
template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible
: public __is_convertible<_T1, _T2>
{
static const size_t __complete_check1 = __is_convertible_check<_T1>::__v;
static const size_t __complete_check2 = __is_convertible_check<_T2>::__v;
};
#endif // __has_feature(is_convertible_to)
// is_empty
#if __has_feature(is_empty) || (_GNUC_VER >= 407)
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_empty
: public integral_constant<bool, __is_empty(_Tp)> {};
#else // __has_feature(is_empty)
template <class _Tp>
struct __is_empty1
: public _Tp
{
double __lx;
};
struct __is_empty2
{
double __lx;
};
template <class _Tp, bool = is_class<_Tp>::value>
struct __libcpp_empty : public integral_constant<bool, sizeof(__is_empty1<_Tp>) == sizeof(__is_empty2)> {};
template <class _Tp> struct __libcpp_empty<_Tp, false> : public false_type {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_empty : public __libcpp_empty<_Tp> {};
#endif // __has_feature(is_empty)
// is_polymorphic
#if __has_feature(is_polymorphic) || defined(_LIBCPP_MSVC)
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic
: public integral_constant<bool, __is_polymorphic(_Tp)> {};
#else
template<typename _Tp> char &__is_polymorphic_impl(
typename enable_if<sizeof((_Tp*)dynamic_cast<const volatile void*>(declval<_Tp*>())) != 0,
int>::type);
template<typename _Tp> __two &__is_polymorphic_impl(...);
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_polymorphic
: public integral_constant<bool, sizeof(__is_polymorphic_impl<_Tp>(0)) == 1> {};
#endif // __has_feature(is_polymorphic)
// has_virtual_destructor
#if __has_feature(has_virtual_destructor) || (_GNUC_VER >= 403)
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY has_virtual_destructor
: public integral_constant<bool, __has_virtual_destructor(_Tp)> {};
#else
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY has_virtual_destructor
: public false_type {};
#endif
// alignment_of
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY alignment_of
: public integral_constant<size_t, __alignof__(_Tp)> {};
// aligned_storage
template <class _Hp, class _Tp>
struct __type_list
{
typedef _Hp _Head;
typedef _Tp _Tail;
};
struct __nat
{
#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
__nat() = delete;
__nat(const __nat&) = delete;
__nat& operator=(const __nat&) = delete;
~__nat() = delete;
#endif
};
template <class _Tp>
struct __align_type
{
static const size_t value = alignment_of<_Tp>::value;
typedef _Tp type;
};
struct __struct_double {long double __lx;};
struct __struct_double4 {double __lx[4];};
typedef
__type_list<__align_type<unsigned char>,
__type_list<__align_type<unsigned short>,
__type_list<__align_type<unsigned int>,
__type_list<__align_type<unsigned long>,
__type_list<__align_type<unsigned long long>,
__type_list<__align_type<double>,
__type_list<__align_type<long double>,
__type_list<__align_type<__struct_double>,
__type_list<__align_type<__struct_double4>,
__type_list<__align_type<int*>,
__nat
> > > > > > > > > > __all_types;
template <class _TL, size_t _Align> struct __find_pod;
template <class _Hp, size_t _Align>
struct __find_pod<__type_list<_Hp, __nat>, _Align>
{
typedef typename conditional<
_Align == _Hp::value,
typename _Hp::type,
void
>::type type;
};
template <class _Hp, class _Tp, size_t _Align>
struct __find_pod<__type_list<_Hp, _Tp>, _Align>
{
typedef typename conditional<
_Align == _Hp::value,
typename _Hp::type,
typename __find_pod<_Tp, _Align>::type
>::type type;
};
template <class _TL, size_t _Len> struct __find_max_align;
template <class _Hp, size_t _Len>
struct __find_max_align<__type_list<_Hp, __nat>, _Len> : public integral_constant<size_t, _Hp::value> {};
template <size_t _Len, size_t _A1, size_t _A2>
struct __select_align
{
private:
static const size_t __min = _A2 < _A1 ? _A2 : _A1;
static const size_t __max = _A1 < _A2 ? _A2 : _A1;
public:
static const size_t value = _Len < __max ? __min : __max;
};
template <class _Hp, class _Tp, size_t _Len>
struct __find_max_align<__type_list<_Hp, _Tp>, _Len>
: public integral_constant<size_t, __select_align<_Len, _Hp::value, __find_max_align<_Tp, _Len>::value>::value> {};
template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value>
struct _LIBCPP_TYPE_VIS_ONLY aligned_storage
{
typedef typename __find_pod<__all_types, _Align>::type _Aligner;
static_assert(!is_void<_Aligner>::value, "");
union type
{
_Aligner __align;
unsigned char __data[_Len];
};
};
#if _LIBCPP_STD_VER > 11
template <size_t _Len, size_t _Align = __find_max_align<__all_types, _Len>::value>
using aligned_storage_t = typename aligned_storage<_Len, _Align>::type;
#endif
#define _CREATE_ALIGNED_STORAGE_SPECIALIZATION(n) \
template <size_t _Len>\
struct _LIBCPP_TYPE_VIS_ONLY aligned_storage<_Len, n>\
{\
struct _ALIGNAS(n) type\
{\
unsigned char __lx[_Len];\
};\
}
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x8);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x10);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x20);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x40);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x80);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x100);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x200);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x400);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x800);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x1000);
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x2000);
// MSDN says that MSVC does not support alignment beyond 8192 (=0x2000)
#if !defined(_LIBCPP_MSVC)
_CREATE_ALIGNED_STORAGE_SPECIALIZATION(0x4000);
#endif // !_LIBCPP_MSVC
#undef _CREATE_ALIGNED_STORAGE_SPECIALIZATION
#ifndef _LIBCPP_HAS_NO_VARIADICS
// aligned_union
template <size_t _I0, size_t ..._In>
struct __static_max;
template <size_t _I0>
struct __static_max<_I0>
{
static const size_t value = _I0;
};
template <size_t _I0, size_t _I1, size_t ..._In>
struct __static_max<_I0, _I1, _In...>
{
static const size_t value = _I0 >= _I1 ? __static_max<_I0, _In...>::value :
__static_max<_I1, _In...>::value;
};
template <size_t _Len, class _Type0, class ..._Types>
struct aligned_union
{
static const size_t alignment_value = __static_max<__alignof__(_Type0),
__alignof__(_Types)...>::value;
static const size_t __len = __static_max<_Len, sizeof(_Type0),
sizeof(_Types)...>::value;
typedef typename aligned_storage<__len, alignment_value>::type type;
};
#if _LIBCPP_STD_VER > 11
template <size_t _Len, class ..._Types> using aligned_union_t = typename aligned_union<_Len, _Types...>::type;
#endif
#endif // _LIBCPP_HAS_NO_VARIADICS
template <class _Tp>
struct __numeric_type
{
static void __test(...);
static float __test(float);
static double __test(char);
static double __test(int);
static double __test(unsigned);
static double __test(long);
static double __test(unsigned long);
static double __test(long long);
static double __test(unsigned long long);
static double __test(double);
static long double __test(long double);
typedef decltype(__test(declval<_Tp>())) type;
static const bool value = !is_same<type, void>::value;
};
template <>
struct __numeric_type<void>
{
static const bool value = true;
};
// __promote
template <class _A1, class _A2 = void, class _A3 = void,
bool = __numeric_type<_A1>::value &&
__numeric_type<_A2>::value &&
__numeric_type<_A3>::value>
class __promote_imp
{
public:
static const bool value = false;
};
template <class _A1, class _A2, class _A3>
class __promote_imp<_A1, _A2, _A3, true>
{
private:
typedef typename __promote_imp<_A1>::type __type1;
typedef typename __promote_imp<_A2>::type __type2;
typedef typename __promote_imp<_A3>::type __type3;
public:
typedef decltype(__type1() + __type2() + __type3()) type;
static const bool value = true;
};
template <class _A1, class _A2>
class __promote_imp<_A1, _A2, void, true>
{
private:
typedef typename __promote_imp<_A1>::type __type1;
typedef typename __promote_imp<_A2>::type __type2;
public:
typedef decltype(__type1() + __type2()) type;
static const bool value = true;
};
template <class _A1>
class __promote_imp<_A1, void, void, true>
{
public:
typedef typename __numeric_type<_A1>::type type;
static const bool value = true;
};
template <class _A1, class _A2 = void, class _A3 = void>
class __promote : public __promote_imp<_A1, _A2, _A3> {};
#ifdef _LIBCPP_STORE_AS_OPTIMIZATION
// __transform
template <class _Tp, size_t = sizeof(_Tp), bool = is_scalar<_Tp>::value> struct __transform {typedef _Tp type;};
template <class _Tp> struct __transform<_Tp, 1, true> {typedef unsigned char type;};
template <class _Tp> struct __transform<_Tp, 2, true> {typedef unsigned short type;};
template <class _Tp> struct __transform<_Tp, 4, true> {typedef unsigned int type;};
template <class _Tp> struct __transform<_Tp, 8, true> {typedef unsigned long long type;};
#endif // _LIBCPP_STORE_AS_OPTIMIZATION
// make_signed / make_unsigned
typedef
__type_list<signed char,
__type_list<signed short,
__type_list<signed int,
__type_list<signed long,
__type_list<signed long long,
#ifndef _LIBCPP_HAS_NO_INT128
__type_list<__int128_t,
#endif
__nat
#ifndef _LIBCPP_HAS_NO_INT128
>
#endif
> > > > > __signed_types;
typedef
__type_list<unsigned char,
__type_list<unsigned short,
__type_list<unsigned int,
__type_list<unsigned long,
__type_list<unsigned long long,
#ifndef _LIBCPP_HAS_NO_INT128
__type_list<__uint128_t,
#endif
__nat
#ifndef _LIBCPP_HAS_NO_INT128
>
#endif
> > > > > __unsigned_types;
template <class _TypeList, size_t _Size, bool = _Size <= sizeof(typename _TypeList::_Head)> struct __find_first;
template <class _Hp, class _Tp, size_t _Size>
struct __find_first<__type_list<_Hp, _Tp>, _Size, true>
{
typedef _Hp type;
};
template <class _Hp, class _Tp, size_t _Size>
struct __find_first<__type_list<_Hp, _Tp>, _Size, false>
{
typedef typename __find_first<_Tp, _Size>::type type;
};
template <class _Tp, class _Up, bool = is_const<typename remove_reference<_Tp>::type>::value,
bool = is_volatile<typename remove_reference<_Tp>::type>::value>
struct __apply_cv
{
typedef _Up type;
};
template <class _Tp, class _Up>
struct __apply_cv<_Tp, _Up, true, false>
{
typedef const _Up type;
};
template <class _Tp, class _Up>
struct __apply_cv<_Tp, _Up, false, true>
{
typedef volatile _Up type;
};
template <class _Tp, class _Up>
struct __apply_cv<_Tp, _Up, true, true>
{
typedef const volatile _Up type;
};
template <class _Tp, class _Up>
struct __apply_cv<_Tp&, _Up, false, false>
{
typedef _Up& type;
};
template <class _Tp, class _Up>
struct __apply_cv<_Tp&, _Up, true, false>
{
typedef const _Up& type;
};
template <class _Tp, class _Up>
struct __apply_cv<_Tp&, _Up, false, true>
{
typedef volatile _Up& type;
};
template <class _Tp, class _Up>
struct __apply_cv<_Tp&, _Up, true, true>
{
typedef const volatile _Up& type;
};
template <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value>
struct __make_signed {};
template <class _Tp>
struct __make_signed<_Tp, true>
{
typedef typename __find_first<__signed_types, sizeof(_Tp)>::type type;
};
template <> struct __make_signed<bool, true> {};
template <> struct __make_signed< signed short, true> {typedef short type;};
template <> struct __make_signed<unsigned short, true> {typedef short type;};
template <> struct __make_signed< signed int, true> {typedef int type;};
template <> struct __make_signed<unsigned int, true> {typedef int type;};
template <> struct __make_signed< signed long, true> {typedef long type;};
template <> struct __make_signed<unsigned long, true> {typedef long type;};
template <> struct __make_signed< signed long long, true> {typedef long long type;};
template <> struct __make_signed<unsigned long long, true> {typedef long long type;};
#ifndef _LIBCPP_HAS_NO_INT128
template <> struct __make_signed<__int128_t, true> {typedef __int128_t type;};
template <> struct __make_signed<__uint128_t, true> {typedef __int128_t type;};
#endif
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY make_signed
{
typedef typename __apply_cv<_Tp, typename __make_signed<typename remove_cv<_Tp>::type>::type>::type type;
};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using make_signed_t = typename make_signed<_Tp>::type;
#endif
template <class _Tp, bool = is_integral<_Tp>::value || is_enum<_Tp>::value>
struct __make_unsigned {};
template <class _Tp>
struct __make_unsigned<_Tp, true>
{
typedef typename __find_first<__unsigned_types, sizeof(_Tp)>::type type;
};
template <> struct __make_unsigned<bool, true> {};
template <> struct __make_unsigned< signed short, true> {typedef unsigned short type;};
template <> struct __make_unsigned<unsigned short, true> {typedef unsigned short type;};
template <> struct __make_unsigned< signed int, true> {typedef unsigned int type;};
template <> struct __make_unsigned<unsigned int, true> {typedef unsigned int type;};
template <> struct __make_unsigned< signed long, true> {typedef unsigned long type;};
template <> struct __make_unsigned<unsigned long, true> {typedef unsigned long type;};
template <> struct __make_unsigned< signed long long, true> {typedef unsigned long long type;};
template <> struct __make_unsigned<unsigned long long, true> {typedef unsigned long long type;};
#ifndef _LIBCPP_HAS_NO_INT128
template <> struct __make_unsigned<__int128_t, true> {typedef __uint128_t type;};
template <> struct __make_unsigned<__uint128_t, true> {typedef __uint128_t type;};
#endif
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY make_unsigned
{
typedef typename __apply_cv<_Tp, typename __make_unsigned<typename remove_cv<_Tp>::type>::type>::type type;
};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using make_unsigned_t = typename make_unsigned<_Tp>::type;
#endif
#ifdef _LIBCPP_HAS_NO_VARIADICS
template <class _Tp, class _Up = void, class _Vp = void>
struct _LIBCPP_TYPE_VIS_ONLY common_type
{
public:
typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp>::type type;
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, void, void>
{
public:
typedef typename decay<_Tp>::type type;
};
template <class _Tp, class _Up>
struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, void>
{
private:
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
static _Tp&& __t();
static _Up&& __u();
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
static _Tp __t();
static _Up __u();
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
public:
typedef typename remove_reference<decltype(true ? __t() : __u())>::type type;
};
#else // _LIBCPP_HAS_NO_VARIADICS
template <class ..._Tp> struct common_type;
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp>
{
typedef typename decay<_Tp>::type type;
};
template <class _Tp, class _Up>
struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up>
{
private:
static _Tp&& __t();
static _Up&& __u();
static bool __f();
public:
typedef typename decay<decltype(__f() ? __t() : __u())>::type type;
};
template <class _Tp, class _Up, class ..._Vp>
struct _LIBCPP_TYPE_VIS_ONLY common_type<_Tp, _Up, _Vp...>
{
typedef typename common_type<typename common_type<_Tp, _Up>::type, _Vp...>::type type;
};
#if _LIBCPP_STD_VER > 11
template <class ..._Tp> using common_type_t = typename common_type<_Tp...>::type;
#endif
#endif // _LIBCPP_HAS_NO_VARIADICS
// is_assignable
template<typename, typename _Tp> struct __select_2nd { typedef _Tp type; };
template <class _Tp, class _Arg>
typename __select_2nd<decltype((_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>())), true_type>::type
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
__is_assignable_test(_Tp&&, _Arg&&);
#else
__is_assignable_test(_Tp, _Arg&);
#endif
template <class _Arg>
false_type
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
__is_assignable_test(__any, _Arg&&);
#else
__is_assignable_test(__any, _Arg&);
#endif
template <class _Tp, class _Arg, bool = is_void<_Tp>::value || is_void<_Arg>::value>
struct __is_assignable_imp
: public common_type
<
decltype(__is_assignable_test(declval<_Tp>(), declval<_Arg>()))
>::type {};
template <class _Tp, class _Arg>
struct __is_assignable_imp<_Tp, _Arg, true>
: public false_type
{
};
template <class _Tp, class _Arg>
struct is_assignable
: public __is_assignable_imp<_Tp, _Arg> {};
// is_copy_assignable
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_copy_assignable
: public is_assignable<typename add_lvalue_reference<_Tp>::type,
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
// is_move_assignable
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_move_assignable
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
: public is_assignable<typename add_lvalue_reference<_Tp>::type,
const typename add_rvalue_reference<_Tp>::type> {};
#else
: public is_copy_assignable<_Tp> {};
#endif
// is_destructible
// if it's a reference, return true
// if it's a function, return false
// if it's void, return false
// if it's an array of unknown bound, return false
// Otherwise, return "std::declval<_Up&>().~_Up()" is well-formed
// where _Up is remove_all_extents<_Tp>::type
template <class>
struct __is_destructible_apply { typedef int type; };
template <typename _Tp>
struct __is_destructor_wellformed {
template <typename _Tp1>
static char __test (
typename __is_destructible_apply<decltype(_VSTD::declval<_Tp1&>().~_Tp1())>::type
);
template <typename _Tp1>
static __two __test (...);
static const bool value = sizeof(__test<_Tp>(12)) == sizeof(char);
};
template <class _Tp, bool>
struct __destructible_imp;
template <class _Tp>
struct __destructible_imp<_Tp, false>
: public _VSTD::integral_constant<bool,
__is_destructor_wellformed<typename _VSTD::remove_all_extents<_Tp>::type>::value> {};
template <class _Tp>
struct __destructible_imp<_Tp, true>
: public _VSTD::true_type {};
template <class _Tp, bool>
struct __destructible_false;
template <class _Tp>
struct __destructible_false<_Tp, false> : public __destructible_imp<_Tp, _VSTD::is_reference<_Tp>::value> {};
template <class _Tp>
struct __destructible_false<_Tp, true> : public _VSTD::false_type {};
template <class _Tp>
struct is_destructible
: public __destructible_false<_Tp, _VSTD::is_function<_Tp>::value> {};
template <class _Tp>
struct is_destructible<_Tp[]>
: public _VSTD::false_type {};
template <>
struct is_destructible<void>
: public _VSTD::false_type {};
// move
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
typename remove_reference<_Tp>::type&&
move(_Tp&& __t) _NOEXCEPT
{
typedef typename remove_reference<_Tp>::type _Up;
return static_cast<_Up&&>(__t);
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp&&
forward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT
{
return static_cast<_Tp&&>(__t);
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11
_Tp&&
forward(typename std::remove_reference<_Tp>::type&& __t) _NOEXCEPT
{
static_assert(!std::is_lvalue_reference<_Tp>::value,
"Can not forward an rvalue as an lvalue.");
return static_cast<_Tp&&>(__t);
}
#else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp&
move(_Tp& __t)
{
return __t;
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
const _Tp&
move(const _Tp& __t)
{
return __t;
}
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
_Tp&
forward(typename std::remove_reference<_Tp>::type& __t) _NOEXCEPT
{
return __t;
}
template <class _Tp>
class __rv
{
typedef typename remove_reference<_Tp>::type _Trr;
_Trr& t_;
public:
_LIBCPP_INLINE_VISIBILITY
_Trr* operator->() {return &t_;}
_LIBCPP_INLINE_VISIBILITY
explicit __rv(_Trr& __t) : t_(__t) {}
};
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
typename decay<_Tp>::type
__decay_copy(_Tp&& __t)
{
return _VSTD::forward<_Tp>(__t);
}
#else
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
typename decay<_Tp>::type
__decay_copy(const _Tp& __t)
{
return _VSTD::forward<_Tp>(__t);
}
#endif
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
#if __has_feature(cxx_reference_qualified_functions)
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &, true, false>
{
typedef _Class& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) &, true, false>
{
typedef _Class& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&, true, false>
{
typedef _Class const& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const&, true, false>
{
typedef _Class const& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&, true, false>
{
typedef _Class volatile& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile&, true, false>
{
typedef _Class volatile& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&, true, false>
{
typedef _Class const volatile& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile&, true, false>
{
typedef _Class const volatile& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) &&, true, false>
{
typedef _Class&& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) &&, true, false>
{
typedef _Class&& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const&&, true, false>
{
typedef _Class const&& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const&&, true, false>
{
typedef _Class const&& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) volatile&&, true, false>
{
typedef _Class volatile&& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) volatile&&, true, false>
{
typedef _Class volatile&& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param...) const volatile&&, true, false>
{
typedef _Class const volatile&& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param...);
};
template <class _Rp, class _Class, class ..._Param>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_Param..., ...) const volatile&&, true, false>
{
typedef _Class const volatile&& _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_Param..., ...);
};
#endif // __has_feature(cxx_reference_qualified_functions)
#else // _LIBCPP_HAS_NO_VARIADICS
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp (_Class::*)(), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) ();
};
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp (_Class::*)(...), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (...);
};
template <class _Rp, class _Class, class _P0>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0);
};
template <class _Rp, class _Class, class _P0>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, ...);
};
template <class _Rp, class _Class, class _P0, class _P1>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1);
};
template <class _Rp, class _Class, class _P0, class _P1>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, ...);
};
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, _P2);
};
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...), true, false>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, _P2, ...);
};
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp (_Class::*)() const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) ();
};
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp (_Class::*)(...) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (...);
};
template <class _Rp, class _Class, class _P0>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0);
};
template <class _Rp, class _Class, class _P0>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, ...);
};
template <class _Rp, class _Class, class _P0, class _P1>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1);
};
template <class _Rp, class _Class, class _P0, class _P1>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, ...);
};
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, _P2);
};
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) const, true, false>
{
typedef _Class const _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, _P2, ...);
};
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp (_Class::*)() volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) ();
};
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp (_Class::*)(...) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (...);
};
template <class _Rp, class _Class, class _P0>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0);
};
template <class _Rp, class _Class, class _P0>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, ...);
};
template <class _Rp, class _Class, class _P0, class _P1>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1);
};
template <class _Rp, class _Class, class _P0, class _P1>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, ...);
};
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, _P2);
};
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) volatile, true, false>
{
typedef _Class volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, _P2, ...);
};
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp (_Class::*)() const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) ();
};
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp (_Class::*)(...) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (...);
};
template <class _Rp, class _Class, class _P0>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0);
};
template <class _Rp, class _Class, class _P0>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, ...) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, ...);
};
template <class _Rp, class _Class, class _P0, class _P1>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1);
};
template <class _Rp, class _Class, class _P0, class _P1>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, ...) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, ...);
};
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, _P2);
};
template <class _Rp, class _Class, class _P0, class _P1, class _P2>
struct __member_pointer_traits_imp<_Rp (_Class::*)(_P0, _P1, _P2, ...) const volatile, true, false>
{
typedef _Class const volatile _ClassType;
typedef _Rp _ReturnType;
typedef _Rp (_FnType) (_P0, _P1, _P2, ...);
};
#endif // _LIBCPP_HAS_NO_VARIADICS
template <class _Rp, class _Class>
struct __member_pointer_traits_imp<_Rp _Class::*, false, true>
{
typedef _Class _ClassType;
typedef _Rp _ReturnType;
};
template <class _MP>
struct __member_pointer_traits
: public __member_pointer_traits_imp<typename remove_cv<_MP>::type,
is_member_function_pointer<_MP>::value,
is_member_object_pointer<_MP>::value>
{
// typedef ... _ClassType;
// typedef ... _ReturnType;
// typedef ... _FnType;
};
// result_of
template <class _Callable> class result_of;
#ifdef _LIBCPP_HAS_NO_VARIADICS
template <class _Fn, bool, bool>
class __result_of
{
};
template <class _Fn>
class __result_of<_Fn(), true, false>
{
public:
typedef decltype(declval<_Fn>()()) type;
};
template <class _Fn, class _A0>
class __result_of<_Fn(_A0), true, false>
{
public:
typedef decltype(declval<_Fn>()(declval<_A0>())) type;
};
template <class _Fn, class _A0, class _A1>
class __result_of<_Fn(_A0, _A1), true, false>
{
public:
typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>())) type;
};
template <class _Fn, class _A0, class _A1, class _A2>
class __result_of<_Fn(_A0, _A1, _A2), true, false>
{
public:
typedef decltype(declval<_Fn>()(declval<_A0>(), declval<_A1>(), declval<_A2>())) type;
};
template <class _MP, class _Tp, bool _IsMemberFunctionPtr>
struct __result_of_mp;
// member function pointer
template <class _MP, class _Tp>
struct __result_of_mp<_MP, _Tp, true>
: public common_type<typename __member_pointer_traits<_MP>::_ReturnType>
{
};
// member data pointer
template <class _MP, class _Tp, bool>
struct __result_of_mdp;
template <class _Rp, class _Class, class _Tp>
struct __result_of_mdp<_Rp _Class::*, _Tp, false>
{
typedef typename __apply_cv<decltype(*_VSTD::declval<_Tp>()), _Rp>::type& type;
};
template <class _Rp, class _Class, class _Tp>
struct __result_of_mdp<_Rp _Class::*, _Tp, true>
{
typedef typename __apply_cv<_Tp, _Rp>::type& type;
};
template <class _Rp, class _Class, class _Tp>
struct __result_of_mp<_Rp _Class::*, _Tp, false>
: public __result_of_mdp<_Rp _Class::*, _Tp,
is_base_of<_Class, typename remove_reference<_Tp>::type>::value>
{
};
template <class _Fn, class _Tp>
class __result_of<_Fn(_Tp), false, true> // _Fn must be member pointer
: public __result_of_mp<typename remove_reference<_Fn>::type,
_Tp,
is_member_function_pointer<typename remove_reference<_Fn>::type>::value>
{
};
template <class _Fn, class _Tp, class _A0>
class __result_of<_Fn(_Tp, _A0), false, true> // _Fn must be member pointer
: public __result_of_mp<typename remove_reference<_Fn>::type,
_Tp,
is_member_function_pointer<typename remove_reference<_Fn>::type>::value>
{
};
template <class _Fn, class _Tp, class _A0, class _A1>
class __result_of<_Fn(_Tp, _A0, _A1), false, true> // _Fn must be member pointer
: public __result_of_mp<typename remove_reference<_Fn>::type,
_Tp,
is_member_function_pointer<typename remove_reference<_Fn>::type>::value>
{
};
template <class _Fn, class _Tp, class _A0, class _A1, class _A2>
class __result_of<_Fn(_Tp, _A0, _A1, _A2), false, true> // _Fn must be member pointer
: public __result_of_mp<typename remove_reference<_Fn>::type,
_Tp,
is_member_function_pointer<typename remove_reference<_Fn>::type>::value>
{
};
// result_of
template <class _Fn>
class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn()>
: public __result_of<_Fn(),
is_class<typename remove_reference<_Fn>::type>::value ||
is_function<typename remove_reference<_Fn>::type>::value,
is_member_pointer<typename remove_reference<_Fn>::type>::value
>
{
};
template <class _Fn, class _A0>
class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0)>
: public __result_of<_Fn(_A0),
is_class<typename remove_reference<_Fn>::type>::value ||
is_function<typename remove_reference<_Fn>::type>::value,
is_member_pointer<typename remove_reference<_Fn>::type>::value
>
{
};
template <class _Fn, class _A0, class _A1>
class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1)>
: public __result_of<_Fn(_A0, _A1),
is_class<typename remove_reference<_Fn>::type>::value ||
is_function<typename remove_reference<_Fn>::type>::value,
is_member_pointer<typename remove_reference<_Fn>::type>::value
>
{
};
template <class _Fn, class _A0, class _A1, class _A2>
class _LIBCPP_TYPE_VIS_ONLY result_of<_Fn(_A0, _A1, _A2)>
: public __result_of<_Fn(_A0, _A1, _A2),
is_class<typename remove_reference<_Fn>::type>::value ||
is_function<typename remove_reference<_Fn>::type>::value,
is_member_pointer<typename remove_reference<_Fn>::type>::value
>
{
};
#endif // _LIBCPP_HAS_NO_VARIADICS
// template <class T, class... Args> struct is_constructible;
namespace __is_construct
{
struct __nat {};
}
#if __has_feature(is_constructible)
template <class _Tp, class ..._Args>
struct _LIBCPP_TYPE_VIS_ONLY is_constructible
: public integral_constant<bool, __is_constructible(_Tp, _Args...)>
{};
#else
#ifndef _LIBCPP_HAS_NO_VARIADICS
// main is_constructible test
template <class _Tp, class ..._Args>
typename __select_2nd<decltype(_VSTD::move(_Tp(_VSTD::declval<_Args>()...))), true_type>::type
__is_constructible_test(_Tp&&, _Args&& ...);
template <class ..._Args>
false_type
__is_constructible_test(__any, _Args&& ...);
template <bool, class _Tp, class... _Args>
struct __libcpp_is_constructible // false, _Tp is not a scalar
: public common_type
<
decltype(__is_constructible_test(declval<_Tp>(), declval<_Args>()...))
>::type
{};
// function types are not constructible
template <class _Rp, class... _A1, class... _A2>
struct __libcpp_is_constructible<false, _Rp(_A1...), _A2...>
: public false_type
{};
// handle scalars and reference types
// Scalars are default constructible, references are not
template <class _Tp>
struct __libcpp_is_constructible<true, _Tp>
: public is_scalar<_Tp>
{};
// Scalars and references are constructible from one arg if that arg is
// implicitly convertible to the scalar or reference.
template <class _Tp>
struct __is_constructible_ref
{
true_type static __lxx(_Tp);
false_type static __lxx(...);
};
template <class _Tp, class _A0>
struct __libcpp_is_constructible<true, _Tp, _A0>
: public common_type
<
decltype(__is_constructible_ref<_Tp>::__lxx(declval<_A0>()))
>::type
{};
// Scalars and references are not constructible from multiple args.
template <class _Tp, class _A0, class ..._Args>
struct __libcpp_is_constructible<true, _Tp, _A0, _Args...>
: public false_type
{};
// Treat scalars and reference types separately
template <bool, class _Tp, class... _Args>
struct __is_constructible_void_check
: public __libcpp_is_constructible<is_scalar<_Tp>::value || is_reference<_Tp>::value,
_Tp, _Args...>
{};
// If any of T or Args is void, is_constructible should be false
template <class _Tp, class... _Args>
struct __is_constructible_void_check<true, _Tp, _Args...>
: public false_type
{};
template <class ..._Args> struct __contains_void;
template <> struct __contains_void<> : false_type {};
template <class _A0, class ..._Args>
struct __contains_void<_A0, _Args...>
{
static const bool value = is_void<_A0>::value ||
__contains_void<_Args...>::value;
};
// is_constructible entry point
template <class _Tp, class... _Args>
struct _LIBCPP_TYPE_VIS_ONLY is_constructible
: public __is_constructible_void_check<__contains_void<_Tp, _Args...>::value
|| is_abstract<_Tp>::value,
_Tp, _Args...>
{};
// Array types are default constructible if their element type
// is default constructible
template <class _Ap, size_t _Np>
struct __libcpp_is_constructible<false, _Ap[_Np]>
: public is_constructible<typename remove_all_extents<_Ap>::type>
{};
// Otherwise array types are not constructible by this syntax
template <class _Ap, size_t _Np, class ..._Args>
struct __libcpp_is_constructible<false, _Ap[_Np], _Args...>
: public false_type
{};
// Incomplete array types are not constructible
template <class _Ap, class ..._Args>
struct __libcpp_is_constructible<false, _Ap[], _Args...>
: public false_type
{};
#else // _LIBCPP_HAS_NO_VARIADICS
// template <class T> struct is_constructible0;
// main is_constructible0 test
template <class _Tp>
decltype((_Tp(), true_type()))
__is_constructible0_test(_Tp&);
false_type
__is_constructible0_test(__any);
template <class _Tp, class _A0>
decltype((_Tp(_VSTD::declval<_A0>()), true_type()))
__is_constructible1_test(_Tp&, _A0&);
template <class _A0>
false_type
__is_constructible1_test(__any, _A0&);
template <class _Tp, class _A0, class _A1>
decltype((_Tp(_VSTD::declval<_A0>(), _VSTD::declval<_A1>()), true_type()))
__is_constructible2_test(_Tp&, _A0&, _A1&);
template <class _A0, class _A1>
false_type
__is_constructible2_test(__any, _A0&, _A1&);
template <bool, class _Tp>
struct __is_constructible0_imp // false, _Tp is not a scalar
: public common_type
<
decltype(__is_constructible0_test(declval<_Tp&>()))
>::type
{};
template <bool, class _Tp, class _A0>
struct __is_constructible1_imp // false, _Tp is not a scalar
: public common_type
<
decltype(__is_constructible1_test(declval<_Tp&>(), declval<_A0&>()))
>::type
{};
template <bool, class _Tp, class _A0, class _A1>
struct __is_constructible2_imp // false, _Tp is not a scalar
: public common_type
<
decltype(__is_constructible2_test(declval<_Tp&>(), declval<_A0>(), declval<_A1>()))
>::type
{};
// handle scalars and reference types
// Scalars are default constructible, references are not
template <class _Tp>
struct __is_constructible0_imp<true, _Tp>
: public is_scalar<_Tp>
{};
template <class _Tp, class _A0>
struct __is_constructible1_imp<true, _Tp, _A0>
: public is_convertible<_A0, _Tp>
{};
template <class _Tp, class _A0, class _A1>
struct __is_constructible2_imp<true, _Tp, _A0, _A1>
: public false_type
{};
// Treat scalars and reference types separately
template <bool, class _Tp>
struct __is_constructible0_void_check
: public __is_constructible0_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value,
_Tp>
{};
template <bool, class _Tp, class _A0>
struct __is_constructible1_void_check
: public __is_constructible1_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value,
_Tp, _A0>
{};
template <bool, class _Tp, class _A0, class _A1>
struct __is_constructible2_void_check
: public __is_constructible2_imp<is_scalar<_Tp>::value || is_reference<_Tp>::value,
_Tp, _A0, _A1>
{};
// If any of T or Args is void, is_constructible should be false
template <class _Tp>
struct __is_constructible0_void_check<true, _Tp>
: public false_type
{};
template <class _Tp, class _A0>
struct __is_constructible1_void_check<true, _Tp, _A0>
: public false_type
{};
template <class _Tp, class _A0, class _A1>
struct __is_constructible2_void_check<true, _Tp, _A0, _A1>
: public false_type
{};
// is_constructible entry point
template <class _Tp, class _A0 = __is_construct::__nat,
class _A1 = __is_construct::__nat>
struct _LIBCPP_TYPE_VIS_ONLY is_constructible
: public __is_constructible2_void_check<is_void<_Tp>::value
|| is_abstract<_Tp>::value
|| is_function<_Tp>::value
|| is_void<_A0>::value
|| is_void<_A1>::value,
_Tp, _A0, _A1>
{};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, __is_construct::__nat, __is_construct::__nat>
: public __is_constructible0_void_check<is_void<_Tp>::value
|| is_abstract<_Tp>::value
|| is_function<_Tp>::value,
_Tp>
{};
template <class _Tp, class _A0>
struct _LIBCPP_TYPE_VIS_ONLY is_constructible<_Tp, _A0, __is_construct::__nat>
: public __is_constructible1_void_check<is_void<_Tp>::value
|| is_abstract<_Tp>::value
|| is_function<_Tp>::value
|| is_void<_A0>::value,
_Tp, _A0>
{};
// Array types are default constructible if their element type
// is default constructible
template <class _Ap, size_t _Np>
struct __is_constructible0_imp<false, _Ap[_Np]>
: public is_constructible<typename remove_all_extents<_Ap>::type>
{};
template <class _Ap, size_t _Np, class _A0>
struct __is_constructible1_imp<false, _Ap[_Np], _A0>
: public false_type
{};
template <class _Ap, size_t _Np, class _A0, class _A1>
struct __is_constructible2_imp<false, _Ap[_Np], _A0, _A1>
: public false_type
{};
// Incomplete array types are not constructible
template <class _Ap>
struct __is_constructible0_imp<false, _Ap[]>
: public false_type
{};
template <class _Ap, class _A0>
struct __is_constructible1_imp<false, _Ap[], _A0>
: public false_type
{};
template <class _Ap, class _A0, class _A1>
struct __is_constructible2_imp<false, _Ap[], _A0, _A1>
: public false_type
{};
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // __has_feature(is_constructible)
// is_default_constructible
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_default_constructible
: public is_constructible<_Tp>
{};
// is_copy_constructible
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_copy_constructible
: public is_constructible<_Tp,
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
// is_move_constructible
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_move_constructible
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
: public is_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
#else
: public is_copy_constructible<_Tp>
#endif
{};
// is_trivially_constructible
#ifndef _LIBCPP_HAS_NO_VARIADICS
#if __has_feature(is_trivially_constructible)
template <class _Tp, class... _Args>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible
: integral_constant<bool, __is_trivially_constructible(_Tp, _Args...)>
{
};
#else // !__has_feature(is_trivially_constructible)
template <class _Tp, class... _Args>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible
: false_type
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp>
#if __has_feature(has_trivial_constructor) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_trivial_constructor(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
template <class _Tp>
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&&>
#else
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp>
#endif
: integral_constant<bool, is_scalar<_Tp>::value>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&>
: integral_constant<bool, is_scalar<_Tp>::value>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&>
: integral_constant<bool, is_scalar<_Tp>::value>
{
};
#endif // !__has_feature(is_trivially_constructible)
#else // _LIBCPP_HAS_NO_VARIADICS
template <class _Tp, class _A0 = __is_construct::__nat,
class _A1 = __is_construct::__nat>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible
: false_type
{
};
#if __has_feature(is_trivially_constructible)
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, __is_construct::__nat,
__is_construct::__nat>
: integral_constant<bool, __is_trivially_constructible(_Tp)>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp,
__is_construct::__nat>
: integral_constant<bool, __is_trivially_constructible(_Tp, _Tp)>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&,
__is_construct::__nat>
: integral_constant<bool, __is_trivially_constructible(_Tp, const _Tp&)>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&,
__is_construct::__nat>
: integral_constant<bool, __is_trivially_constructible(_Tp, _Tp&)>
{
};
#else // !__has_feature(is_trivially_constructible)
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, __is_construct::__nat,
__is_construct::__nat>
: integral_constant<bool, is_scalar<_Tp>::value>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp,
__is_construct::__nat>
: integral_constant<bool, is_scalar<_Tp>::value>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, const _Tp&,
__is_construct::__nat>
: integral_constant<bool, is_scalar<_Tp>::value>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_trivially_constructible<_Tp, _Tp&,
__is_construct::__nat>
: integral_constant<bool, is_scalar<_Tp>::value>
{
};
#endif // !__has_feature(is_trivially_constructible)
#endif // _LIBCPP_HAS_NO_VARIADICS
// is_trivially_default_constructible
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_default_constructible
: public is_trivially_constructible<_Tp>
{};
// is_trivially_copy_constructible
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copy_constructible
: public is_trivially_constructible<_Tp, typename add_lvalue_reference<const _Tp>::type>
{};
// is_trivially_move_constructible
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_move_constructible
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
: public is_trivially_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
#else
: public is_trivially_copy_constructible<_Tp>
#endif
{};
// is_trivially_assignable
#if __has_feature(is_trivially_assignable)
template <class _Tp, class _Arg>
struct is_trivially_assignable
: integral_constant<bool, __is_trivially_assignable(_Tp, _Arg)>
{
};
#else // !__has_feature(is_trivially_assignable)
template <class _Tp, class _Arg>
struct is_trivially_assignable
: public false_type {};
template <class _Tp>
struct is_trivially_assignable<_Tp&, _Tp>
: integral_constant<bool, is_scalar<_Tp>::value> {};
template <class _Tp>
struct is_trivially_assignable<_Tp&, _Tp&>
: integral_constant<bool, is_scalar<_Tp>::value> {};
template <class _Tp>
struct is_trivially_assignable<_Tp&, const _Tp&>
: integral_constant<bool, is_scalar<_Tp>::value> {};
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>
struct is_trivially_assignable<_Tp&, _Tp&&>
: integral_constant<bool, is_scalar<_Tp>::value> {};
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#endif // !__has_feature(is_trivially_assignable)
// is_trivially_copy_assignable
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copy_assignable
: public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type,
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
// is_trivially_move_assignable
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_move_assignable
: public is_trivially_assignable<typename add_lvalue_reference<_Tp>::type,
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
typename add_rvalue_reference<_Tp>::type>
#else
typename add_lvalue_reference<_Tp>::type>
#endif
{};
// is_trivially_destructible
#if __has_feature(has_trivial_destructor) || (_GNUC_VER >= 403)
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible
: public integral_constant<bool, is_destructible<_Tp>::value && __has_trivial_destructor(_Tp)> {};
#else
template <class _Tp> struct __libcpp_trivial_destructor
: public integral_constant<bool, is_scalar<_Tp>::value ||
is_reference<_Tp>::value> {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_destructible
: public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {};
#endif
// is_nothrow_constructible
#if 0
template <class _Tp, class... _Args>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible
: public integral_constant<bool, __is_nothrow_constructible(_Tp(_Args...))>
{
};
#else
#ifndef _LIBCPP_HAS_NO_VARIADICS
#if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L)
template <bool, bool, class _Tp, class... _Args> struct __libcpp_is_nothrow_constructible;
template <class _Tp, class... _Args>
struct __libcpp_is_nothrow_constructible</*is constructible*/true, /*is reference*/false, _Tp, _Args...>
: public integral_constant<bool, noexcept(_Tp(declval<_Args>()...))>
{
};
template <class _Tp>
void __implicit_conversion_to(_Tp) noexcept { }
template <class _Tp, class _Arg>
struct __libcpp_is_nothrow_constructible</*is constructible*/true, /*is reference*/true, _Tp, _Arg>
: public integral_constant<bool, noexcept(__implicit_conversion_to<_Tp>(declval<_Arg>()))>
{
};
template <class _Tp, bool _IsReference, class... _Args>
struct __libcpp_is_nothrow_constructible</*is constructible*/false, _IsReference, _Tp, _Args...>
: public false_type
{
};
template <class _Tp, class... _Args>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible
: __libcpp_is_nothrow_constructible<is_constructible<_Tp, _Args...>::value, is_reference<_Tp>::value, _Tp, _Args...>
{
};
template <class _Tp, size_t _Ns>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp[_Ns]>
: __libcpp_is_nothrow_constructible<is_constructible<_Tp>::value, is_reference<_Tp>::value, _Tp>
{
};
#else // __has_feature(cxx_noexcept)
template <class _Tp, class... _Args>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible
: false_type
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp>
#if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_constructor(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
template <class _Tp>
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&&>
#else
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp>
#endif
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_copy(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&>
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_copy(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&>
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_copy(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
#endif // __has_feature(cxx_noexcept)
#else // _LIBCPP_HAS_NO_VARIADICS
template <class _Tp, class _A0 = __is_construct::__nat,
class _A1 = __is_construct::__nat>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible
: false_type
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, __is_construct::__nat,
__is_construct::__nat>
#if __has_feature(has_nothrow_constructor) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_constructor(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp,
__is_construct::__nat>
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_copy(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, const _Tp&,
__is_construct::__nat>
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_copy(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_constructible<_Tp, _Tp&,
__is_construct::__nat>
#if __has_feature(has_nothrow_copy) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_copy(_Tp)>
#else
: integral_constant<bool, is_scalar<_Tp>::value>
#endif
{
};
#endif // _LIBCPP_HAS_NO_VARIADICS
#endif // __has_feature(is_nothrow_constructible)
// is_nothrow_default_constructible
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_default_constructible
: public is_nothrow_constructible<_Tp>
{};
// is_nothrow_copy_constructible
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_copy_constructible
: public is_nothrow_constructible<_Tp,
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
// is_nothrow_move_constructible
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_move_constructible
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
: public is_nothrow_constructible<_Tp, typename add_rvalue_reference<_Tp>::type>
#else
: public is_nothrow_copy_constructible<_Tp>
#endif
{};
// is_nothrow_assignable
#if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L)
template <bool, class _Tp, class _Arg> struct __libcpp_is_nothrow_assignable;
template <class _Tp, class _Arg>
struct __libcpp_is_nothrow_assignable<false, _Tp, _Arg>
: public false_type
{
};
template <class _Tp, class _Arg>
struct __libcpp_is_nothrow_assignable<true, _Tp, _Arg>
: public integral_constant<bool, noexcept(_VSTD::declval<_Tp>() = _VSTD::declval<_Arg>()) >
{
};
template <class _Tp, class _Arg>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable
: public __libcpp_is_nothrow_assignable<is_assignable<_Tp, _Arg>::value, _Tp, _Arg>
{
};
#else // __has_feature(cxx_noexcept)
template <class _Tp, class _Arg>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable
: public false_type {};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, _Tp>
#if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_assign(_Tp)> {};
#else
: integral_constant<bool, is_scalar<_Tp>::value> {};
#endif
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, _Tp&>
#if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_assign(_Tp)> {};
#else
: integral_constant<bool, is_scalar<_Tp>::value> {};
#endif
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_assignable<_Tp&, const _Tp&>
#if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_assign(_Tp)> {};
#else
: integral_constant<bool, is_scalar<_Tp>::value> {};
#endif
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>
struct is_nothrow_assignable<_Tp&, _Tp&&>
#if __has_feature(has_nothrow_assign) || (_GNUC_VER >= 403)
: integral_constant<bool, __has_nothrow_assign(_Tp)> {};
#else
: integral_constant<bool, is_scalar<_Tp>::value> {};
#endif
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
#endif // __has_feature(cxx_noexcept)
// is_nothrow_copy_assignable
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_copy_assignable
: public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type,
typename add_lvalue_reference<typename add_const<_Tp>::type>::type> {};
// is_nothrow_move_assignable
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_move_assignable
: public is_nothrow_assignable<typename add_lvalue_reference<_Tp>::type,
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
typename add_rvalue_reference<_Tp>::type>
#else
typename add_lvalue_reference<_Tp>::type>
#endif
{};
// is_nothrow_destructible
#if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L)
template <bool, class _Tp> struct __libcpp_is_nothrow_destructible;
template <class _Tp>
struct __libcpp_is_nothrow_destructible<false, _Tp>
: public false_type
{
};
template <class _Tp>
struct __libcpp_is_nothrow_destructible<true, _Tp>
: public integral_constant<bool, noexcept(_VSTD::declval<_Tp>().~_Tp()) >
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible
: public __libcpp_is_nothrow_destructible<is_destructible<_Tp>::value, _Tp>
{
};
template <class _Tp, size_t _Ns>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp[_Ns]>
: public is_nothrow_destructible<_Tp>
{
};
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp&>
: public true_type
{
};
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp>
struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible<_Tp&&>
: public true_type
{
};
#endif
#else
template <class _Tp> struct __libcpp_nothrow_destructor
: public integral_constant<bool, is_scalar<_Tp>::value ||
is_reference<_Tp>::value> {};
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_nothrow_destructible
: public __libcpp_nothrow_destructor<typename remove_all_extents<_Tp>::type> {};
#endif
// is_pod
#if __has_feature(is_pod) || (_GNUC_VER >= 403)
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pod
: public integral_constant<bool, __is_pod(_Tp)> {};
#else
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_pod
: public integral_constant<bool, is_trivially_default_constructible<_Tp>::value &&
is_trivially_copy_constructible<_Tp>::value &&
is_trivially_copy_assignable<_Tp>::value &&
is_trivially_destructible<_Tp>::value> {};
#endif
// is_literal_type;
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_literal_type
#ifdef _LIBCPP_IS_LITERAL
: public integral_constant<bool, _LIBCPP_IS_LITERAL(_Tp)>
#else
: integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value ||
is_reference<typename remove_all_extents<_Tp>::type>::value>
#endif
{};
// is_standard_layout;
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_standard_layout
#if __has_feature(is_standard_layout) || (_GNUC_VER >= 407)
: public integral_constant<bool, __is_standard_layout(_Tp)>
#else
: integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value>
#endif
{};
// is_trivially_copyable;
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivially_copyable
#if __has_feature(is_trivially_copyable)
: public integral_constant<bool, __is_trivially_copyable(_Tp)>
#else
: integral_constant<bool, is_scalar<typename remove_all_extents<_Tp>::type>::value>
#endif
{};
// is_trivial;
template <class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_trivial
#if __has_feature(is_trivial) || (_GNUC_VER >= 407)
: public integral_constant<bool, __is_trivial(_Tp)>
#else
: integral_constant<bool, is_trivially_copyable<_Tp>::value &&
is_trivially_default_constructible<_Tp>::value>
#endif
{};
#ifndef _LIBCPP_HAS_NO_VARIADICS
// Check for complete types
template <class ..._Tp> struct __check_complete;
template <>
struct __check_complete<>
{
};
template <class _Hp, class _T0, class ..._Tp>
struct __check_complete<_Hp, _T0, _Tp...>
: private __check_complete<_Hp>,
private __check_complete<_T0, _Tp...>
{
};
template <class _Hp>
struct __check_complete<_Hp, _Hp>
: private __check_complete<_Hp>
{
};
template <class _Tp>
struct __check_complete<_Tp>
{
static_assert(sizeof(_Tp) > 0, "Type must be complete.");
};
template <class _Tp>
struct __check_complete<_Tp&>
: private __check_complete<_Tp>
{
};
template <class _Tp>
struct __check_complete<_Tp&&>
: private __check_complete<_Tp>
{
};
template <class _Rp, class ..._Param>
struct __check_complete<_Rp (*)(_Param...)>
: private __check_complete<_Rp>
{
};
template <class ..._Param>
struct __check_complete<void (*)(_Param...)>
{
};
template <class _Rp, class ..._Param>
struct __check_complete<_Rp (_Param...)>
: private __check_complete<_Rp>
{
};
template <class ..._Param>
struct __check_complete<void (_Param...)>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...)>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) const>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) volatile>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) const volatile>
: private __check_complete<_Class>
{
};
#if __has_feature(cxx_reference_qualified_functions)
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) &>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) const&>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) volatile&>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) const volatile&>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) &&>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) const&&>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) volatile&&>
: private __check_complete<_Class>
{
};
template <class _Rp, class _Class, class ..._Param>
struct __check_complete<_Rp (_Class::*)(_Param...) const volatile&&>
: private __check_complete<_Class>
{
};
#endif
template <class _Rp, class _Class>
struct __check_complete<_Rp _Class::*>
: private __check_complete<_Class>
{
};
// __invoke forward declarations
// fall back - none of the bullets
template <class ..._Args>
auto
__invoke(__any, _Args&& ...__args)
-> __nat;
// bullets 1 and 2
template <class _Fp, class _A0, class ..._Args,
class = typename enable_if
<
is_member_function_pointer<typename remove_reference<_Fp>::type>::value &&
is_base_of<typename remove_reference<typename __member_pointer_traits<typename remove_reference<_Fp>::type>::_ClassType>::type,
typename remove_reference<_A0>::type>::value
>::type
>
_LIBCPP_INLINE_VISIBILITY
auto
__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
-> decltype((_VSTD::forward<_A0>(__a0).*__f)(_VSTD::forward<_Args>(__args)...));
template <class _Fp, class _A0, class ..._Args,
class = typename enable_if
<
is_member_function_pointer<typename remove_reference<_Fp>::type>::value &&
!is_base_of<typename remove_reference<typename __member_pointer_traits<typename remove_reference<_Fp>::type>::_ClassType>::type,
typename remove_reference<_A0>::type>::value
>::type
>
_LIBCPP_INLINE_VISIBILITY
auto
__invoke(_Fp&& __f, _A0&& __a0, _Args&& ...__args)
-> decltype(((*_VSTD::forward<_A0>(__a0)).*__f)(_VSTD::forward<_Args>(__args)...));
// bullets 3 and 4
template <class _Fp, class _A0,
class = typename enable_if
<
is_member_object_pointer<typename remove_reference<_Fp>::type>::value &&
is_base_of<typename __member_pointer_traits<typename remove_reference<_Fp>::type>::_ClassType,
typename remove_reference<_A0>::type>::value
>::type
>
_LIBCPP_INLINE_VISIBILITY
auto
__invoke(_Fp&& __f, _A0&& __a0)
-> decltype(_VSTD::forward<_A0>(__a0).*__f);
template <class _Fp, class _A0,
class = typename enable_if
<
is_member_object_pointer<typename remove_reference<_Fp>::type>::value &&
!is_base_of<typename __member_pointer_traits<typename remove_reference<_Fp>::type>::_ClassType,
typename remove_reference<_A0>::type>::value
>::type
>
_LIBCPP_INLINE_VISIBILITY
auto
__invoke(_Fp&& __f, _A0&& __a0)
-> decltype((*_VSTD::forward<_A0>(__a0)).*__f);
// bullet 5
template <class _Fp, class ..._Args>
_LIBCPP_INLINE_VISIBILITY
auto
__invoke(_Fp&& __f, _Args&& ...__args)
-> decltype(_VSTD::forward<_Fp>(__f)(_VSTD::forward<_Args>(__args)...));
// __invokable
template <class _Fp, class ..._Args>
struct __invokable_imp
: private __check_complete<_Fp>
{
typedef decltype(
__invoke(_VSTD::declval<_Fp>(), _VSTD::declval<_Args>()...)
) type;
static const bool value = !is_same<type, __nat>::value;
};
template <class _Fp, class ..._Args>
struct __invokable
: public integral_constant<bool,
__invokable_imp<_Fp, _Args...>::value>
{
};
// __invoke_of
template <bool _Invokable, class _Fp, class ..._Args>
struct __invoke_of_imp // false
{
};
template <class _Fp, class ..._Args>
struct __invoke_of_imp<true, _Fp, _Args...>
{
typedef typename __invokable_imp<_Fp, _Args...>::type type;
};
template <class _Fp, class ..._Args>
struct __invoke_of
: public __invoke_of_imp<__invokable<_Fp, _Args...>::value, _Fp, _Args...>
{
};
template <class _Fp, class ..._Args>
class _LIBCPP_TYPE_VIS_ONLY result_of<_Fp(_Args...)>
: public __invoke_of<_Fp, _Args...>
{
};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using result_of_t = typename result_of<_Tp>::type;
#endif
#endif // _LIBCPP_HAS_NO_VARIADICS
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY
#ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE
typename enable_if
<
is_move_constructible<_Tp>::value &&
is_move_assignable<_Tp>::value
>::type
#else
void
#endif
swap(_Tp& __x, _Tp& __y) _NOEXCEPT_(is_nothrow_move_constructible<_Tp>::value &&
is_nothrow_move_assignable<_Tp>::value)
{
_Tp __t(_VSTD::move(__x));
__x = _VSTD::move(__y);
__y = _VSTD::move(__t);
}
template <class _ForwardIterator1, class _ForwardIterator2>
inline _LIBCPP_INLINE_VISIBILITY
void
iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b)
// _NOEXCEPT_(_NOEXCEPT_(swap(*__a, *__b)))
_NOEXCEPT_(_NOEXCEPT_(swap(*_VSTD::declval<_ForwardIterator1>(),
*_VSTD::declval<_ForwardIterator2>())))
{
swap(*__a, *__b);
}
// __swappable
namespace __detail
{
using _VSTD::swap;
__nat swap(__any, __any);
template <class _Tp>
struct __swappable
{
typedef decltype(swap(_VSTD::declval<_Tp&>(), _VSTD::declval<_Tp&>())) type;
static const bool value = !is_same<type, __nat>::value;
};
} // __detail
template <class _Tp>
struct __is_swappable
: public integral_constant<bool, __detail::__swappable<_Tp>::value>
{
};
#if __has_feature(cxx_noexcept) || (_GNUC_VER >= 407 && __cplusplus >= 201103L)
template <bool, class _Tp>
struct __is_nothrow_swappable_imp
: public integral_constant<bool, noexcept(swap(_VSTD::declval<_Tp&>(),
_VSTD::declval<_Tp&>()))>
{
};
template <class _Tp>
struct __is_nothrow_swappable_imp<false, _Tp>
: public false_type
{
};
template <class _Tp>
struct __is_nothrow_swappable
: public __is_nothrow_swappable_imp<__is_swappable<_Tp>::value, _Tp>
{
};
#else // __has_feature(cxx_noexcept)
template <class _Tp>
struct __is_nothrow_swappable
: public false_type
{
};
#endif // __has_feature(cxx_noexcept)
#ifdef _LIBCPP_UNDERLYING_TYPE
template <class _Tp>
struct underlying_type
{
typedef _LIBCPP_UNDERLYING_TYPE(_Tp) type;
};
#if _LIBCPP_STD_VER > 11
template <class _Tp> using underlying_type_t = typename underlying_type<_Tp>::type;
#endif
#else // _LIBCPP_UNDERLYING_TYPE
template <class _Tp, bool _Support = false>
struct underlying_type
{
static_assert(_Support, "The underyling_type trait requires compiler "
"support. Either no such support exists or "
"libc++ does not know how to use it.");
};
#endif // _LIBCPP_UNDERLYING_TYPE
template <class _Tp, bool = std::is_enum<_Tp>::value>
struct __sfinae_underlying_type
{
typedef typename underlying_type<_Tp>::type type;
typedef decltype(((type)1) + 0) __promoted_type;
};
template <class _Tp>
struct __sfinae_underlying_type<_Tp, false> {};
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
int __convert_to_integral(int __val) { return __val; }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
unsigned __convert_to_integral(unsigned __val) { return __val; }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
long __convert_to_integral(long __val) { return __val; }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
unsigned long __convert_to_integral(unsigned long __val) { return __val; }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
long long __convert_to_integral(long long __val) { return __val; }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
unsigned long long __convert_to_integral(unsigned long long __val) {return __val; }
#ifndef _LIBCPP_HAS_NO_INT128
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
__int128_t __convert_to_integral(__int128_t __val) { return __val; }
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
__uint128_t __convert_to_integral(__uint128_t __val) { return __val; }
#endif
template <class _Tp>
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_ALWAYS_INLINE
typename __sfinae_underlying_type<_Tp>::__promoted_type
__convert_to_integral(_Tp __val) { return __val; }
#ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE
template <class _Tp>
struct __has_operator_addressof_member_imp
{
template <class _Up>
static auto __test(int)
-> typename __select_2nd<decltype(_VSTD::declval<_Up>().operator&()), true_type>::type;
template <class>
static auto __test(long) -> false_type;
static const bool value = decltype(__test<_Tp>(0))::value;
};
template <class _Tp>
struct __has_operator_addressof_free_imp
{
template <class _Up>
static auto __test(int)
-> typename __select_2nd<decltype(operator&(_VSTD::declval<_Up>())), true_type>::type;
template <class>
static auto __test(long) -> false_type;
static const bool value = decltype(__test<_Tp>(0))::value;
};
template <class _Tp>
struct __has_operator_addressof
: public integral_constant<bool, __has_operator_addressof_member_imp<_Tp>::value
|| __has_operator_addressof_free_imp<_Tp>::value>
{};
#endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE
#if _LIBCPP_STD_VER > 14
template <class...> using void_t = void;
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_TYPE_TRAITS
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