10b57cec5SDimitry Andric // -*- C++ -*- 2349cc55cSDimitry Andric //===----------------------------------------------------------------------===// 30b57cec5SDimitry Andric // 40b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 50b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 60b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 70b57cec5SDimitry Andric // 80b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 90b57cec5SDimitry Andric 100b57cec5SDimitry Andric #ifndef _LIBCPP_FENV_H 110b57cec5SDimitry Andric #define _LIBCPP_FENV_H 120b57cec5SDimitry Andric 130b57cec5SDimitry Andric 140b57cec5SDimitry Andric /* 150b57cec5SDimitry Andric fenv.h synopsis 160b57cec5SDimitry Andric 170b57cec5SDimitry Andric This entire header is C99 / C++0X 180b57cec5SDimitry Andric 190b57cec5SDimitry Andric Macros: 200b57cec5SDimitry Andric 210b57cec5SDimitry Andric FE_DIVBYZERO 220b57cec5SDimitry Andric FE_INEXACT 230b57cec5SDimitry Andric FE_INVALID 240b57cec5SDimitry Andric FE_OVERFLOW 250b57cec5SDimitry Andric FE_UNDERFLOW 260b57cec5SDimitry Andric FE_ALL_EXCEPT 270b57cec5SDimitry Andric FE_DOWNWARD 280b57cec5SDimitry Andric FE_TONEAREST 290b57cec5SDimitry Andric FE_TOWARDZERO 300b57cec5SDimitry Andric FE_UPWARD 310b57cec5SDimitry Andric FE_DFL_ENV 320b57cec5SDimitry Andric 330b57cec5SDimitry Andric Types: 340b57cec5SDimitry Andric 350b57cec5SDimitry Andric fenv_t 360b57cec5SDimitry Andric fexcept_t 370b57cec5SDimitry Andric 380b57cec5SDimitry Andric int feclearexcept(int excepts); 390b57cec5SDimitry Andric int fegetexceptflag(fexcept_t* flagp, int excepts); 400b57cec5SDimitry Andric int feraiseexcept(int excepts); 410b57cec5SDimitry Andric int fesetexceptflag(const fexcept_t* flagp, int excepts); 420b57cec5SDimitry Andric int fetestexcept(int excepts); 430b57cec5SDimitry Andric int fegetround(); 440b57cec5SDimitry Andric int fesetround(int round); 450b57cec5SDimitry Andric int fegetenv(fenv_t* envp); 460b57cec5SDimitry Andric int feholdexcept(fenv_t* envp); 470b57cec5SDimitry Andric int fesetenv(const fenv_t* envp); 480b57cec5SDimitry Andric int feupdateenv(const fenv_t* envp); 490b57cec5SDimitry Andric 500b57cec5SDimitry Andric 510b57cec5SDimitry Andric */ 520b57cec5SDimitry Andric 530b57cec5SDimitry Andric #include <__config> 540b57cec5SDimitry Andric 550b57cec5SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 560b57cec5SDimitry Andric # pragma GCC system_header 570b57cec5SDimitry Andric #endif 580b57cec5SDimitry Andric 59*bdd1243dSDimitry Andric #if __has_include_next(<fenv.h>) 600b57cec5SDimitry Andric # include_next <fenv.h> 61*bdd1243dSDimitry Andric #endif 620b57cec5SDimitry Andric 630b57cec5SDimitry Andric #ifdef __cplusplus 640b57cec5SDimitry Andric 650b57cec5SDimitry Andric extern "C++" { 660b57cec5SDimitry Andric 670b57cec5SDimitry Andric #ifdef feclearexcept 680b57cec5SDimitry Andric #undef feclearexcept 690b57cec5SDimitry Andric #endif 700b57cec5SDimitry Andric 710b57cec5SDimitry Andric #ifdef fegetexceptflag 720b57cec5SDimitry Andric #undef fegetexceptflag 730b57cec5SDimitry Andric #endif 740b57cec5SDimitry Andric 750b57cec5SDimitry Andric 760b57cec5SDimitry Andric #ifdef feraiseexcept 770b57cec5SDimitry Andric #undef feraiseexcept 780b57cec5SDimitry Andric #endif 790b57cec5SDimitry Andric 800b57cec5SDimitry Andric #ifdef fesetexceptflag 810b57cec5SDimitry Andric #undef fesetexceptflag 820b57cec5SDimitry Andric #endif 830b57cec5SDimitry Andric 840b57cec5SDimitry Andric 850b57cec5SDimitry Andric #ifdef fetestexcept 860b57cec5SDimitry Andric #undef fetestexcept 870b57cec5SDimitry Andric #endif 880b57cec5SDimitry Andric 890b57cec5SDimitry Andric #ifdef fegetround 900b57cec5SDimitry Andric #undef fegetround 910b57cec5SDimitry Andric #endif 920b57cec5SDimitry Andric 930b57cec5SDimitry Andric #ifdef fesetround 940b57cec5SDimitry Andric #undef fesetround 950b57cec5SDimitry Andric #endif 960b57cec5SDimitry Andric 970b57cec5SDimitry Andric #ifdef fegetenv 980b57cec5SDimitry Andric #undef fegetenv 990b57cec5SDimitry Andric #endif 1000b57cec5SDimitry Andric 1010b57cec5SDimitry Andric #ifdef feholdexcept 1020b57cec5SDimitry Andric #undef feholdexcept 1030b57cec5SDimitry Andric #endif 1040b57cec5SDimitry Andric 1050b57cec5SDimitry Andric 1060b57cec5SDimitry Andric #ifdef fesetenv 1070b57cec5SDimitry Andric #undef fesetenv 1080b57cec5SDimitry Andric #endif 1090b57cec5SDimitry Andric 1100b57cec5SDimitry Andric #ifdef feupdateenv 1110b57cec5SDimitry Andric #undef feupdateenv 1120b57cec5SDimitry Andric #endif 1130b57cec5SDimitry Andric 1140b57cec5SDimitry Andric } // extern "C++" 1150b57cec5SDimitry Andric 1160b57cec5SDimitry Andric #endif // defined(__cplusplus) 1170b57cec5SDimitry Andric 1180b57cec5SDimitry Andric #endif // _LIBCPP_FENV_H 119