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f69585235e
This significantly reduces the amount of debug information generated for codebases using libc++, without hurting the debugging experience.
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___TUPLE_TUPLE_SIZE_H
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#define _LIBCPP___TUPLE_TUPLE_SIZE_H
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#include <__config>
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#include <__cstddef/size_t.h>
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#include <__fwd/tuple.h>
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#include <__tuple/tuple_types.h>
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#include <__type_traits/enable_if.h>
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#include <__type_traits/integral_constant.h>
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#include <__type_traits/is_const.h>
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#include <__type_traits/is_volatile.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Tp>
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struct _LIBCPP_TEMPLATE_VIS tuple_size;
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#if !defined(_LIBCPP_CXX03_LANG)
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template <class _Tp, class...>
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using __enable_if_tuple_size_imp _LIBCPP_NODEBUG = _Tp;
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template <class _Tp>
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struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp< const _Tp,
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__enable_if_t<!is_volatile<_Tp>::value>,
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integral_constant<size_t, sizeof(tuple_size<_Tp>)>>>
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: public integral_constant<size_t, tuple_size<_Tp>::value> {};
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template <class _Tp>
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struct _LIBCPP_TEMPLATE_VIS tuple_size<__enable_if_tuple_size_imp< volatile _Tp,
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__enable_if_t<!is_const<_Tp>::value>,
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integral_constant<size_t, sizeof(tuple_size<_Tp>)>>>
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: public integral_constant<size_t, tuple_size<_Tp>::value> {};
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template <class _Tp>
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struct _LIBCPP_TEMPLATE_VIS
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tuple_size<__enable_if_tuple_size_imp<const volatile _Tp, integral_constant<size_t, sizeof(tuple_size<_Tp>)>>>
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: public integral_constant<size_t, tuple_size<_Tp>::value> {};
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#else
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template <class _Tp>
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struct _LIBCPP_TEMPLATE_VIS tuple_size<const _Tp> : public tuple_size<_Tp> {};
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template <class _Tp>
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struct _LIBCPP_TEMPLATE_VIS tuple_size<volatile _Tp> : public tuple_size<_Tp> {};
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template <class _Tp>
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struct _LIBCPP_TEMPLATE_VIS tuple_size<const volatile _Tp> : public tuple_size<_Tp> {};
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#endif
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#ifndef _LIBCPP_CXX03_LANG
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template <class... _Tp>
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struct _LIBCPP_TEMPLATE_VIS tuple_size<tuple<_Tp...> > : public integral_constant<size_t, sizeof...(_Tp)> {};
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template <class... _Tp>
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struct _LIBCPP_TEMPLATE_VIS tuple_size<__tuple_types<_Tp...> > : public integral_constant<size_t, sizeof...(_Tp)> {};
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# if _LIBCPP_STD_VER >= 17
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template <class _Tp>
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inline constexpr size_t tuple_size_v = tuple_size<_Tp>::value;
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# endif
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#endif // _LIBCPP_CXX03_LANG
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___TUPLE_TUPLE_SIZE_H
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