xref: /aosp_15_r20/external/llvm-libc/test/src/fenv/feupdateenv_test.cpp (revision 71db0c75aadcf003ffe3238005f61d7618a3fead)
1 //===-- Unittests for feupdateenv -----------------------------------------===//
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 "hdr/types/fenv_t.h"
10 #include "src/fenv/feupdateenv.h"
11 
12 #include "src/__support/FPUtil/FEnvImpl.h"
13 #include "test/UnitTest/FEnvSafeTest.h"
14 #include "test/UnitTest/Test.h"
15 
16 using LlvmLibcFEnvTest = LIBC_NAMESPACE::testing::FEnvSafeTest;
17 
TEST_F(LlvmLibcFEnvTest,UpdateEnvTest)18 TEST_F(LlvmLibcFEnvTest, UpdateEnvTest) {
19   LIBC_NAMESPACE::fputil::disable_except(FE_ALL_EXCEPT);
20   LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
21 
22   fenv_t env;
23   ASSERT_EQ(LIBC_NAMESPACE::fputil::get_env(&env), 0);
24   LIBC_NAMESPACE::fputil::set_except(FE_INVALID | FE_INEXACT);
25   ASSERT_EQ(LIBC_NAMESPACE::feupdateenv(&env), 0);
26   ASSERT_EQ(LIBC_NAMESPACE::fputil::test_except(FE_INVALID | FE_INEXACT),
27             FE_INVALID | FE_INEXACT);
28 }
29