1//===-- Unittests for feclearexcept with exceptions enabled ---------------===//
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/feclearexcept.h"
10
11#include "src/__support/FPUtil/FEnvImpl.h"
12#include "test/UnitTest/FEnvSafeTest.h"
13#include "test/UnitTest/Test.h"
14
15#include "hdr/fenv_macros.h"
16#include <stdint.h>
17
18#include "excepts.h"
19
20using LlvmLibcFEnvTest = LIBC_NAMESPACE::testing::FEnvSafeTest;
21
22TEST_F(LlvmLibcFEnvTest, ClearTest) {
23 LIBC_NAMESPACE::fputil::disable_except(FE_ALL_EXCEPT);
24 LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
25
26 for (int e : EXCEPTS)
27 ASSERT_EQ(LIBC_NAMESPACE::fputil::test_except(e), 0);
28
29 LIBC_NAMESPACE::fputil::raise_except(FE_ALL_EXCEPT);
30
31 for (int e1 : EXCEPTS) {
32 for (int e2 : EXCEPTS) {
33 for (int e3 : EXCEPTS) {
34 for (int e4 : EXCEPTS) {
35 for (int e5 : EXCEPTS) {
36 // We clear one exception and test to verify that it was cleared.
37 LIBC_NAMESPACE::feclearexcept(e1 | e2 | e3 | e4 | e5);
38 ASSERT_EQ(
39 LIBC_NAMESPACE::fputil::test_except(e1 | e2 | e3 | e4 | e5), 0);
40 // After clearing, we raise the exception again.
41 LIBC_NAMESPACE::fputil::raise_except(e1 | e2 | e3 | e4 | e5);
42 }
43 }
44 }
45 }
46 }
47}
48

source code of libc/test/src/fenv/feclearexcept_test.cpp