libc/test/src/fenv/feupdateenv_test.cpp

   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
  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 }