[libc++] Remove libc++'s own fenv.h (#194629)
Our own `fenv.h` only `#undef`s macros which the C header might define. None of the libcs we support define any of these functions as macros, so we can simply drop the header.
This commit is contained in:
Nikolas Klauser
GitHub
parent
be8e0842a1
commit
f7329e61ad
5 changed files with 10 additions and 139 deletions
|
|
@ -1035,7 +1035,6 @@ set(files
|
|||
ext/__hash
|
||||
ext/hash_map
|
||||
ext/hash_set
|
||||
fenv.h
|
||||
filesystem
|
||||
flat_map
|
||||
flat_set
|
||||
|
|
|
|||
|
|
@ -54,14 +54,11 @@ int feupdateenv(const fenv_t* envp);
|
|||
|
||||
#include <__cxx03/__config>
|
||||
|
||||
#include <fenv.h>
|
||||
|
||||
#ifndef _LIBCPP_FENV_H
|
||||
# error <cfenv> tried including <fenv.h> but didn't find libc++'s <fenv.h> header. \
|
||||
This usually means that your header search paths are not configured properly. \
|
||||
The header search paths should contain the C++ Standard Library headers before \
|
||||
any C Standard Library, and you are probably using compiler flags that make that \
|
||||
not be the case.
|
||||
#if __has_include(<fenv.h>)
|
||||
# include <fenv.h>
|
||||
# ifdef _LIBCPP_FENV_H
|
||||
# error "If libc++ starts defining <fenv.h>, the __has_include check should move to libc++'s <fenv.h>"
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
|
|
|
|||
|
|
@ -57,14 +57,11 @@ int feupdateenv(const fenv_t* envp);
|
|||
#else
|
||||
# include <__config>
|
||||
|
||||
# include <fenv.h>
|
||||
|
||||
# ifndef _LIBCPP_FENV_H
|
||||
# error <cfenv> tried including <fenv.h> but didn't find libc++'s <fenv.h> header. \
|
||||
This usually means that your header search paths are not configured properly. \
|
||||
The header search paths should contain the C++ Standard Library headers before \
|
||||
any C Standard Library, and you are probably using compiler flags that make that \
|
||||
not be the case.
|
||||
# if __has_include(<fenv.h>)
|
||||
# include <fenv.h>
|
||||
# ifdef _LIBCPP_FENV_H
|
||||
# error "If libc++ starts defining <fenv.h>, the __has_include check should move to libc++'s <fenv.h>"
|
||||
# endif
|
||||
# endif
|
||||
|
||||
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
|
|
|
|||
|
|
@ -1,118 +0,0 @@
|
|||
// -*- C++ -*-
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||||
// See https://llvm.org/LICENSE.txt for license information.
|
||||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef _LIBCPP_FENV_H
|
||||
#define _LIBCPP_FENV_H
|
||||
|
||||
/*
|
||||
fenv.h synopsis
|
||||
|
||||
This entire header is C99 / C++0X
|
||||
|
||||
Macros:
|
||||
|
||||
FE_DIVBYZERO
|
||||
FE_INEXACT
|
||||
FE_INVALID
|
||||
FE_OVERFLOW
|
||||
FE_UNDERFLOW
|
||||
FE_ALL_EXCEPT
|
||||
FE_DOWNWARD
|
||||
FE_TONEAREST
|
||||
FE_TOWARDZERO
|
||||
FE_UPWARD
|
||||
FE_DFL_ENV
|
||||
|
||||
Types:
|
||||
|
||||
fenv_t
|
||||
fexcept_t
|
||||
|
||||
int feclearexcept(int excepts);
|
||||
int fegetexceptflag(fexcept_t* flagp, int excepts);
|
||||
int feraiseexcept(int excepts);
|
||||
int fesetexceptflag(const fexcept_t* flagp, int excepts);
|
||||
int fetestexcept(int excepts);
|
||||
int fegetround();
|
||||
int fesetround(int round);
|
||||
int fegetenv(fenv_t* envp);
|
||||
int feholdexcept(fenv_t* envp);
|
||||
int fesetenv(const fenv_t* envp);
|
||||
int feupdateenv(const fenv_t* envp);
|
||||
|
||||
|
||||
*/
|
||||
|
||||
#if defined(__cplusplus) && __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
|
||||
# include <__cxx03/__config>
|
||||
#else
|
||||
# include <__config>
|
||||
#endif
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
#if __has_include_next(<fenv.h>)
|
||||
# include_next <fenv.h>
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
|
||||
extern "C++" {
|
||||
|
||||
# ifdef feclearexcept
|
||||
# undef feclearexcept
|
||||
# endif
|
||||
|
||||
# ifdef fegetexceptflag
|
||||
# undef fegetexceptflag
|
||||
# endif
|
||||
|
||||
# ifdef feraiseexcept
|
||||
# undef feraiseexcept
|
||||
# endif
|
||||
|
||||
# ifdef fesetexceptflag
|
||||
# undef fesetexceptflag
|
||||
# endif
|
||||
|
||||
# ifdef fetestexcept
|
||||
# undef fetestexcept
|
||||
# endif
|
||||
|
||||
# ifdef fegetround
|
||||
# undef fegetround
|
||||
# endif
|
||||
|
||||
# ifdef fesetround
|
||||
# undef fesetround
|
||||
# endif
|
||||
|
||||
# ifdef fegetenv
|
||||
# undef fegetenv
|
||||
# endif
|
||||
|
||||
# ifdef feholdexcept
|
||||
# undef feholdexcept
|
||||
# endif
|
||||
|
||||
# ifdef fesetenv
|
||||
# undef fesetenv
|
||||
# endif
|
||||
|
||||
# ifdef feupdateenv
|
||||
# undef feupdateenv
|
||||
# endif
|
||||
|
||||
} // extern "C++"
|
||||
|
||||
#endif // defined(__cplusplus)
|
||||
|
||||
#endif // _LIBCPP_FENV_H
|
||||
|
|
@ -2449,10 +2449,6 @@ module std_errno_h [system] {
|
|||
header "errno.h"
|
||||
export *
|
||||
}
|
||||
module std_fenv_h [system] {
|
||||
header "fenv.h"
|
||||
export *
|
||||
}
|
||||
module std_math_h [system] {
|
||||
header "math.h"
|
||||
export *
|
||||
|
|
|
|||
Loading…
Reference in a new issue