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//===-- Unittests for fegetround and fesetround ---------------------------===//
//
// 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/fegetround.h"
#include "src/fenv/fesetround.h"
#include "test/UnitTest/FEnvSafeTest.h"
#include "test/UnitTest/Test.h"
#include "hdr/fenv_macros.h"
using LlvmLibcRoundingModeTest = LIBC_NAMESPACE::testing::FEnvSafeTest;
TEST_F(LlvmLibcRoundingModeTest, SetAndGet) {
struct ResetDefaultRoundingMode {
int original = LIBC_NAMESPACE::fegetround();
~ResetDefaultRoundingMode() { LIBC_NAMESPACE::fesetround(original); }
} reset;
int s = LIBC_NAMESPACE::fesetround(FE_TONEAREST);
EXPECT_EQ(s, 0);
int rm = LIBC_NAMESPACE::fegetround();
EXPECT_EQ(rm, FE_TONEAREST);
s = LIBC_NAMESPACE::fesetround(FE_UPWARD);
EXPECT_EQ(s, 0);
rm = LIBC_NAMESPACE::fegetround();
EXPECT_EQ(rm, FE_UPWARD);
s = LIBC_NAMESPACE::fesetround(FE_DOWNWARD);
EXPECT_EQ(s, 0);
rm = LIBC_NAMESPACE::fegetround();
EXPECT_EQ(rm, FE_DOWNWARD);
s = LIBC_NAMESPACE::fesetround(FE_TOWARDZERO);
EXPECT_EQ(s, 0);
rm = LIBC_NAMESPACE::fegetround();
EXPECT_EQ(rm, FE_TOWARDZERO);
}
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