| //===-- Implementation of fesetexceptflag function ------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "src/fenv/fesetexceptflag.h" |
| #include "hdr/types/fexcept_t.h" |
| #include "src/__support/FPUtil/FEnvImpl.h" |
| #include "src/__support/common.h" |
| |
| namespace LIBC_NAMESPACE { |
| |
| LLVM_LIBC_FUNCTION(int, fesetexceptflag, |
| (const fexcept_t *flagp, int excepts)) { |
| // Since the return type of fetestexcept is int, we ensure that fexcept_t |
| // can fit in int type. |
| static_assert(sizeof(int) >= sizeof(fexcept_t), |
| "fexcept_t value cannot fit in an int value."); |
| int excepts_to_set = static_cast<int>(*flagp) & excepts; |
| fputil::clear_except(FE_ALL_EXCEPT); |
| return fputil::set_except(excepts_to_set); |
| } |
| |
| } // namespace LIBC_NAMESPACE |
