ec11388b33
Rename the `__tuple` directory in libc++ headers to `__tuple_dir` to avoid file collision when installing. Historically, `__tuple` has been a file and it has been replaced by a directory in 2d52c6bfae801b016dd3627b8c0e7c4a99405549. Replacing a regular file with a directory (or more importantly, the other way around when downgrading) is not universally supported. Since this is an internal header, its actual name should not matter, so just rename it to avoid problems. Differential Revision: https://reviews.llvm.org/D139270
71 lines
2.1 KiB
C++
71 lines
2.1 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_APPLY_CV_H
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#define _LIBCPP___TUPLE_APPLY_CV_H
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#include <__config>
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#include <__type_traits/is_const.h>
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#include <__type_traits/is_reference.h>
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#include <__type_traits/is_volatile.h>
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#include <__type_traits/remove_reference.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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#ifndef _LIBCPP_CXX03_LANG
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <bool _ApplyLV, bool _ApplyConst, bool _ApplyVolatile>
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struct __apply_cv_mf;
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template <>
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struct __apply_cv_mf<false, false, false> {
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template <class _Tp> using __apply = _Tp;
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};
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template <>
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struct __apply_cv_mf<false, true, false> {
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template <class _Tp> using __apply _LIBCPP_NODEBUG = const _Tp;
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};
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template <>
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struct __apply_cv_mf<false, false, true> {
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template <class _Tp> using __apply _LIBCPP_NODEBUG = volatile _Tp;
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};
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template <>
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struct __apply_cv_mf<false, true, true> {
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template <class _Tp> using __apply _LIBCPP_NODEBUG = const volatile _Tp;
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};
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template <>
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struct __apply_cv_mf<true, false, false> {
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template <class _Tp> using __apply _LIBCPP_NODEBUG = _Tp&;
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};
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template <>
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struct __apply_cv_mf<true, true, false> {
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template <class _Tp> using __apply _LIBCPP_NODEBUG = const _Tp&;
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};
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template <>
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struct __apply_cv_mf<true, false, true> {
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template <class _Tp> using __apply _LIBCPP_NODEBUG = volatile _Tp&;
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};
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template <>
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struct __apply_cv_mf<true, true, true> {
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template <class _Tp> using __apply _LIBCPP_NODEBUG = const volatile _Tp&;
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};
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template <class _Tp, class _RawTp = __libcpp_remove_reference_t<_Tp> >
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using __apply_cv_t _LIBCPP_NODEBUG = __apply_cv_mf<
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is_lvalue_reference<_Tp>::value,
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is_const<_RawTp>::value,
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is_volatile<_RawTp>::value>;
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_CXX03_LANG
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#endif // _LIBCPP___TUPLE_APPLY_CV_H
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