xref: /aosp_15_r20/external/llvm-libc/src/fenv/fetestexceptflag.cpp (revision 71db0c75aadcf003ffe3238005f61d7618a3fead)
1 //===-- Implementation of fetestexceptflag 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/fetestexceptflag.h"
10 #include "hdr/types/fexcept_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, fetestexceptflag,
18                    (const fexcept_t *flagp, int excepts)) {
19   static_assert(sizeof(int) >= sizeof(fexcept_t),
20                 "fexcept_t value cannot fit in an int value.");
21   return *flagp | fputil::test_except(excepts);
22 }
23 
24 } // namespace LIBC_NAMESPACE_DECL
25