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//===-- Unittests for exp10m1f --------------------------------------------===//
//
// 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 "hdr/errno_macros.h"
#include "src/math/exp10m1f.h"
#include "test/UnitTest/FPMatcher.h"
#include "test/UnitTest/Test.h"
using LlvmLibcExp10m1fTest = LIBC_NAMESPACE::testing::FPTest<float>;
TEST_F(LlvmLibcExp10m1fTest, SpecialNumbers) {
EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::exp10m1f(sNaN), FE_INVALID);
EXPECT_MATH_ERRNO(0);
EXPECT_EQ(FPBits(aNaN).uintval(),
FPBits(LIBC_NAMESPACE::exp10m1f(aNaN)).uintval());
EXPECT_EQ(FPBits(neg_aNaN).uintval(),
FPBits(LIBC_NAMESPACE::exp10m1f(neg_aNaN)).uintval());
EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::exp10m1f(inf));
EXPECT_FP_EQ_ALL_ROUNDING(-1.0f, LIBC_NAMESPACE::exp10m1f(neg_inf));
EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::exp10m1f(zero));
EXPECT_FP_EQ_ALL_ROUNDING(neg_zero, LIBC_NAMESPACE::exp10m1f(neg_zero));
EXPECT_FP_EQ_ALL_ROUNDING(9.0f, LIBC_NAMESPACE::exp10m1f(1.0f));
EXPECT_FP_EQ_ALL_ROUNDING(99.0f, LIBC_NAMESPACE::exp10m1f(2.0f));
EXPECT_FP_EQ_ALL_ROUNDING(999.0f, LIBC_NAMESPACE::exp10m1f(3.0f));
}
TEST_F(LlvmLibcExp10m1fTest, Overflow) {
EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::exp10m1f(0x1.fffffep+127f),
FE_OVERFLOW);
EXPECT_MATH_ERRNO(ERANGE);
EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::exp10m1f(0x1.344136p+5),
FE_OVERFLOW);
EXPECT_MATH_ERRNO(ERANGE);
EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::exp10m1f(0x1.344138p+5),
FE_OVERFLOW);
EXPECT_MATH_ERRNO(ERANGE);
}
TEST_F(LlvmLibcExp10m1fTest, Underflow) {
EXPECT_FP_EQ_WITH_EXCEPTION(-1.0f, LIBC_NAMESPACE::exp10m1f(-max_normal),
FE_UNDERFLOW);
EXPECT_MATH_ERRNO(ERANGE);
EXPECT_FP_EQ_WITH_EXCEPTION(-1.0f, LIBC_NAMESPACE::exp10m1f(-0x1.e1a5e4p+2f),
FE_UNDERFLOW);
EXPECT_MATH_ERRNO(ERANGE);
}
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