libc/src/fenv/feholdexcept.cpp

   1 //===-- Implementation of feholdexcept function ---------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "src/fenv/feholdexcept.h"
  10 #include "hdr/types/fenv_t.h"
  11 #include "src/__support/FPUtil/FEnvImpl.h"
  12 #include "src/__support/common.h"
  13 #include "src/__support/macros/config.h"
  14
  15 namespace LIBC_NAMESPACE_DECL {
  16
  17 LLVM_LIBC_FUNCTION(int, feholdexcept, (fenv_t * envp)) {
  18   if (fputil::get_env(envp) != 0)
  19     return -1;
  20   fputil::clear_except(FE_ALL_EXCEPT);
  21   fputil::disable_except(FE_ALL_EXCEPT);
  22   return 0;
  23 }
  24
  25 } // namespace LIBC_NAMESPACE_DECL