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 fenv.h synopsis 150b57cec5SDimitry Andric 160b57cec5SDimitry Andric This entire header is C99 / C++0X 170b57cec5SDimitry Andric 180b57cec5SDimitry Andric Macros: 190b57cec5SDimitry Andric 200b57cec5SDimitry Andric FE_DIVBYZERO 210b57cec5SDimitry Andric FE_INEXACT 220b57cec5SDimitry Andric FE_INVALID 230b57cec5SDimitry Andric FE_OVERFLOW 240b57cec5SDimitry Andric FE_UNDERFLOW 250b57cec5SDimitry Andric FE_ALL_EXCEPT 260b57cec5SDimitry Andric FE_DOWNWARD 270b57cec5SDimitry Andric FE_TONEAREST 280b57cec5SDimitry Andric FE_TOWARDZERO 290b57cec5SDimitry Andric FE_UPWARD 300b57cec5SDimitry Andric FE_DFL_ENV 310b57cec5SDimitry Andric 320b57cec5SDimitry Andric Types: 330b57cec5SDimitry Andric 340b57cec5SDimitry Andric fenv_t 350b57cec5SDimitry Andric fexcept_t 360b57cec5SDimitry Andric 370b57cec5SDimitry Andric int feclearexcept(int excepts); 380b57cec5SDimitry Andric int fegetexceptflag(fexcept_t* flagp, int excepts); 390b57cec5SDimitry Andric int feraiseexcept(int excepts); 400b57cec5SDimitry Andric int fesetexceptflag(const fexcept_t* flagp, int excepts); 410b57cec5SDimitry Andric int fetestexcept(int excepts); 420b57cec5SDimitry Andric int fegetround(); 430b57cec5SDimitry Andric int fesetround(int round); 440b57cec5SDimitry Andric int fegetenv(fenv_t* envp); 450b57cec5SDimitry Andric int feholdexcept(fenv_t* envp); 460b57cec5SDimitry Andric int fesetenv(const fenv_t* envp); 470b57cec5SDimitry Andric int feupdateenv(const fenv_t* envp); 480b57cec5SDimitry Andric 490b57cec5SDimitry Andric 500b57cec5SDimitry Andric */ 510b57cec5SDimitry Andric 520b57cec5SDimitry Andric #include <__config> 530b57cec5SDimitry Andric 540b57cec5SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 550b57cec5SDimitry Andric # pragma GCC system_header 560b57cec5SDimitry Andric #endif 570b57cec5SDimitry Andric 58*bdd1243dSDimitry Andric #if __has_include_next(<fenv.h>) 590b57cec5SDimitry Andric # include_next <fenv.h> 60*bdd1243dSDimitry Andric #endif 610b57cec5SDimitry Andric 620b57cec5SDimitry Andric #ifdef __cplusplus 630b57cec5SDimitry Andric 640b57cec5SDimitry Andric extern "C++" { 650b57cec5SDimitry Andric 660b57cec5SDimitry Andric # ifdef feclearexcept 670b57cec5SDimitry Andric # undef feclearexcept 680b57cec5SDimitry Andric # endif 690b57cec5SDimitry Andric 700b57cec5SDimitry Andric # ifdef fegetexceptflag 710b57cec5SDimitry Andric # undef fegetexceptflag 720b57cec5SDimitry Andric # endif 730b57cec5SDimitry Andric 740b57cec5SDimitry Andric # ifdef feraiseexcept 750b57cec5SDimitry Andric # undef feraiseexcept 760b57cec5SDimitry Andric # endif 770b57cec5SDimitry Andric 780b57cec5SDimitry Andric # ifdef fesetexceptflag 790b57cec5SDimitry Andric # undef fesetexceptflag 800b57cec5SDimitry Andric # endif 810b57cec5SDimitry Andric 820b57cec5SDimitry Andric # ifdef fetestexcept 830b57cec5SDimitry Andric # undef fetestexcept 840b57cec5SDimitry Andric # endif 850b57cec5SDimitry Andric 860b57cec5SDimitry Andric # ifdef fegetround 870b57cec5SDimitry Andric # undef fegetround 880b57cec5SDimitry Andric # endif 890b57cec5SDimitry Andric 900b57cec5SDimitry Andric # ifdef fesetround 910b57cec5SDimitry Andric # undef fesetround 920b57cec5SDimitry Andric # endif 930b57cec5SDimitry Andric 940b57cec5SDimitry Andric # ifdef fegetenv 950b57cec5SDimitry Andric # undef fegetenv 960b57cec5SDimitry Andric # endif 970b57cec5SDimitry Andric 980b57cec5SDimitry Andric # ifdef feholdexcept 990b57cec5SDimitry Andric # undef feholdexcept 1000b57cec5SDimitry Andric # endif 1010b57cec5SDimitry Andric 1020b57cec5SDimitry Andric # ifdef fesetenv 1030b57cec5SDimitry Andric # undef fesetenv 1040b57cec5SDimitry Andric # endif 1050b57cec5SDimitry Andric 1060b57cec5SDimitry Andric # ifdef feupdateenv 1070b57cec5SDimitry Andric # undef feupdateenv 1080b57cec5SDimitry Andric # endif 1090b57cec5SDimitry Andric 1100b57cec5SDimitry Andric } // extern "C++" 1110b57cec5SDimitry Andric 1120b57cec5SDimitry Andric #endif // defined(__cplusplus) 1130b57cec5SDimitry Andric 1140b57cec5SDimitry Andric #endif // _LIBCPP_FENV_H 115