e78f53d1e8
This reverts commit 68c04b0ae62d8431d72d8b47fc13008002ee4387. This disables the IWYU mapping that caused the failure, since the headers aren't reachable for now. This is the first part of the "Freezing C++03 headers" proposal explained in https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319/58. This patch mechanically copies the headers as of the LLVM 19.1 release into a subdirectory of libc++ so that we can start using these headers when building in C++03 mode. We are going to be backporting important changes to that copy of the headers until the LLVM 21 release. After the LLVM 21 release, only critical bugfixes will be fixed in the C++03 copy of the headers. This patch only performs a copy of the headers -- these headers are still unused by the rest of the codebase.
91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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_CFENV
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#define _LIBCPP_CFENV
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/*
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cfenv synopsis
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This entire header is C99 / C++0X
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Macros:
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FE_DIVBYZERO
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FE_INEXACT
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FE_INVALID
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FE_OVERFLOW
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FE_UNDERFLOW
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FE_ALL_EXCEPT
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FE_DOWNWARD
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FE_TONEAREST
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FE_TOWARDZERO
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FE_UPWARD
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FE_DFL_ENV
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namespace std
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{
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Types:
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fenv_t
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fexcept_t
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int feclearexcept(int excepts);
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int fegetexceptflag(fexcept_t* flagp, int excepts);
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int feraiseexcept(int excepts);
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int fesetexceptflag(const fexcept_t* flagp, int excepts);
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int fetestexcept(int excepts);
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int fegetround();
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int fesetround(int round);
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int fegetenv(fenv_t* envp);
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int feholdexcept(fenv_t* envp);
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int fesetenv(const fenv_t* envp);
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int feupdateenv(const fenv_t* envp);
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} // std
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*/
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#include <__config>
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#include <fenv.h>
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#ifndef _LIBCPP_FENV_H
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# error <cfenv> tried including <fenv.h> but didn't find libc++'s <fenv.h> header. \
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This usually means that your header search paths are not configured properly. \
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The header search paths should contain the C++ Standard Library headers before \
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any C Standard Library, and you are probably using compiler flags that make that \
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not be the case.
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#endif
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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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using ::fenv_t _LIBCPP_USING_IF_EXISTS;
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using ::fexcept_t _LIBCPP_USING_IF_EXISTS;
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using ::feclearexcept _LIBCPP_USING_IF_EXISTS;
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using ::fegetexceptflag _LIBCPP_USING_IF_EXISTS;
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using ::feraiseexcept _LIBCPP_USING_IF_EXISTS;
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using ::fesetexceptflag _LIBCPP_USING_IF_EXISTS;
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using ::fetestexcept _LIBCPP_USING_IF_EXISTS;
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using ::fegetround _LIBCPP_USING_IF_EXISTS;
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using ::fesetround _LIBCPP_USING_IF_EXISTS;
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using ::fegetenv _LIBCPP_USING_IF_EXISTS;
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using ::feholdexcept _LIBCPP_USING_IF_EXISTS;
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using ::fesetenv _LIBCPP_USING_IF_EXISTS;
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using ::feupdateenv _LIBCPP_USING_IF_EXISTS;
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_CFENV
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