1 //===-- Implementation of fegetexceptflag 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/fegetexceptflag.h"
10 #include "src/__support/common.h"
11 #include "utils/FPUtil/FEnv.h"
12 
13 #include <fenv.h>
14 
15 namespace __llvm_libc {
16 
17 LLVM_LIBC_FUNCTION(int, fegetexceptflag, (fexcept_t * flagp, int excepts)) {
18   // Since the return type of fetestexcept is int, we ensure that fexcept_t
19   // matches in size.
20   static_assert(sizeof(int) == sizeof(fexcept_t),
21                 "sizeof(fexcept_t) != sizeof(int)");
22   *reinterpret_cast<int *>(flagp) = fputil::testExcept(FE_ALL_EXCEPT) & excepts;
23   return 0;
24 }
25 
26 } // namespace __llvm_libc
27