45 lines · cpp
1//===-- Unittests for fegetround and fesetround ---------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/fenv/fegetround.h"10#include "src/fenv/fesetround.h"11 12#include "test/UnitTest/FEnvSafeTest.h"13#include "test/UnitTest/Test.h"14 15#include "hdr/fenv_macros.h"16 17using LlvmLibcRoundingModeTest = LIBC_NAMESPACE::testing::FEnvSafeTest;18 19TEST_F(LlvmLibcRoundingModeTest, SetAndGet) {20 struct ResetDefaultRoundingMode {21 int original = LIBC_NAMESPACE::fegetround();22 ~ResetDefaultRoundingMode() { LIBC_NAMESPACE::fesetround(original); }23 } reset;24 25 int s = LIBC_NAMESPACE::fesetround(FE_TONEAREST);26 EXPECT_EQ(s, 0);27 int rm = LIBC_NAMESPACE::fegetround();28 EXPECT_EQ(rm, FE_TONEAREST);29 30 s = LIBC_NAMESPACE::fesetround(FE_UPWARD);31 EXPECT_EQ(s, 0);32 rm = LIBC_NAMESPACE::fegetround();33 EXPECT_EQ(rm, FE_UPWARD);34 35 s = LIBC_NAMESPACE::fesetround(FE_DOWNWARD);36 EXPECT_EQ(s, 0);37 rm = LIBC_NAMESPACE::fegetround();38 EXPECT_EQ(rm, FE_DOWNWARD);39 40 s = LIBC_NAMESPACE::fesetround(FE_TOWARDZERO);41 EXPECT_EQ(s, 0);42 rm = LIBC_NAMESPACE::fegetround();43 EXPECT_EQ(rm, FE_TOWARDZERO);44}45