368faacac7
This commit reverts 5aaefa51 (and also partly 7f285f48e77 and b6d75682f9, which were related to the original commit). As landed, 5aaefa51 had unintended consequences on some downstream bots and didn't have proper coverage upstream due to a few subtle things. Implementing this is something we should do in libc++, however we'll first need to address a few issues listed in https://reviews.llvm.org/D106124#3349710. Differential Revision: https://reviews.llvm.org/D120683
35 lines
980 B
C++
35 lines
980 B
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___UTILITY_DECLVAL_H
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#define _LIBCPP___UTILITY_DECLVAL_H
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#include <__config>
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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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// Suppress deprecation notice for volatile-qualified return type resulting
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// from volatile-qualified types _Tp.
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_LIBCPP_SUPPRESS_DEPRECATED_PUSH
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template <class _Tp>
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_Tp&& __declval(int);
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template <class _Tp>
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_Tp __declval(long);
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_LIBCPP_SUPPRESS_DEPRECATED_POP
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template <class _Tp>
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decltype(__declval<_Tp>(0)) declval() _NOEXCEPT;
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___UTILITY_DECLVAL_H
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