xref: /freebsd/contrib/llvm-project/libcxx/include/cfenv (revision ec0ea6efa1ad229d75c394c1a9b9cac33af2b1d3)
1// -*- C++ -*-
2//===---------------------------- cfenv -----------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP_CFENV
11#define _LIBCPP_CFENV
12
13/*
14    cfenv synopsis
15
16This entire header is C99 / C++0X
17
18Macros:
19
20    FE_DIVBYZERO
21    FE_INEXACT
22    FE_INVALID
23    FE_OVERFLOW
24    FE_UNDERFLOW
25    FE_ALL_EXCEPT
26    FE_DOWNWARD
27    FE_TONEAREST
28    FE_TOWARDZERO
29    FE_UPWARD
30    FE_DFL_ENV
31
32namespace std
33{
34
35Types:
36
37    fenv_t
38    fexcept_t
39
40int feclearexcept(int excepts);
41int fegetexceptflag(fexcept_t* flagp, int excepts);
42int feraiseexcept(int excepts);
43int fesetexceptflag(const fexcept_t* flagp, int excepts);
44int fetestexcept(int excepts);
45int fegetround();
46int fesetround(int round);
47int fegetenv(fenv_t* envp);
48int feholdexcept(fenv_t* envp);
49int fesetenv(const fenv_t* envp);
50int feupdateenv(const fenv_t* envp);
51
52}  // std
53*/
54
55#include <__config>
56#include <fenv.h>
57
58#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
59#pragma GCC system_header
60#endif
61
62_LIBCPP_BEGIN_NAMESPACE_STD
63
64using ::fenv_t _LIBCPP_USING_IF_EXISTS;
65using ::fexcept_t _LIBCPP_USING_IF_EXISTS;
66
67using ::feclearexcept _LIBCPP_USING_IF_EXISTS;
68using ::fegetexceptflag _LIBCPP_USING_IF_EXISTS;
69using ::feraiseexcept _LIBCPP_USING_IF_EXISTS;
70using ::fesetexceptflag _LIBCPP_USING_IF_EXISTS;
71using ::fetestexcept _LIBCPP_USING_IF_EXISTS;
72using ::fegetround _LIBCPP_USING_IF_EXISTS;
73using ::fesetround _LIBCPP_USING_IF_EXISTS;
74using ::fegetenv _LIBCPP_USING_IF_EXISTS;
75using ::feholdexcept _LIBCPP_USING_IF_EXISTS;
76using ::fesetenv _LIBCPP_USING_IF_EXISTS;
77using ::feupdateenv _LIBCPP_USING_IF_EXISTS;
78
79_LIBCPP_END_NAMESPACE_STD
80
81#endif // _LIBCPP_CFENV
82