1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 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_FENV_H 11 #define _LIBCPP_FENV_H 12 13 14 /* 15 fenv.h synopsis 16 17 This entire header is C99 / C++0X 18 19 Macros: 20 21 FE_DIVBYZERO 22 FE_INEXACT 23 FE_INVALID 24 FE_OVERFLOW 25 FE_UNDERFLOW 26 FE_ALL_EXCEPT 27 FE_DOWNWARD 28 FE_TONEAREST 29 FE_TOWARDZERO 30 FE_UPWARD 31 FE_DFL_ENV 32 33 Types: 34 35 fenv_t 36 fexcept_t 37 38 int feclearexcept(int excepts); 39 int fegetexceptflag(fexcept_t* flagp, int excepts); 40 int feraiseexcept(int excepts); 41 int fesetexceptflag(const fexcept_t* flagp, int excepts); 42 int fetestexcept(int excepts); 43 int fegetround(); 44 int fesetround(int round); 45 int fegetenv(fenv_t* envp); 46 int feholdexcept(fenv_t* envp); 47 int fesetenv(const fenv_t* envp); 48 int feupdateenv(const fenv_t* envp); 49 50 51 */ 52 53 #include <__config> 54 55 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 56 #pragma GCC system_header 57 #endif 58 59 #include_next <fenv.h> 60 61 #ifdef __cplusplus 62 63 extern "C++" { 64 65 #ifdef feclearexcept 66 #undef feclearexcept 67 #endif 68 69 #ifdef fegetexceptflag 70 #undef fegetexceptflag 71 #endif 72 73 74 #ifdef feraiseexcept 75 #undef feraiseexcept 76 #endif 77 78 #ifdef fesetexceptflag 79 #undef fesetexceptflag 80 #endif 81 82 83 #ifdef fetestexcept 84 #undef fetestexcept 85 #endif 86 87 #ifdef fegetround 88 #undef fegetround 89 #endif 90 91 #ifdef fesetround 92 #undef fesetround 93 #endif 94 95 #ifdef fegetenv 96 #undef fegetenv 97 #endif 98 99 #ifdef feholdexcept 100 #undef feholdexcept 101 #endif 102 103 104 #ifdef fesetenv 105 #undef fesetenv 106 #endif 107 108 #ifdef feupdateenv 109 #undef feupdateenv 110 #endif 111 112 } // extern "C++" 113 114 #endif // defined(__cplusplus) 115 116 #endif // _LIBCPP_FENV_H 117