//===-- Unittests for log10f ----------------------------------------------===// // // 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/math_macros.h" #include "src/__support/FPUtil/FPBits.h" #include "src/math/log10f.h" #include "test/UnitTest/FPMatcher.h" #include "test/UnitTest/Test.h" #include using LlvmLibcLog10fTest = LIBC_NAMESPACE::testing::FPTest; TEST_F(LlvmLibcLog10fTest, SpecialNumbers) { EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::log10f(aNaN)); EXPECT_FP_EQ(inf, LIBC_NAMESPACE::log10f(inf)); EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log10f(neg_inf), FE_INVALID); EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log10f(0.0f), FE_DIVBYZERO); EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log10f(-0.0f), FE_DIVBYZERO); EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log10f(-1.0f), FE_INVALID); EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::log10f(1.0f)); float x = 1.0f; for (int i = 0; i < 11; ++i, x *= 10.0f) { EXPECT_FP_EQ_ALL_ROUNDING(static_cast(i), LIBC_NAMESPACE::log10f(x)); } } #ifdef LIBC_TEST_FTZ_DAZ using namespace LIBC_NAMESPACE::testing; TEST_F(LlvmLibcLog10fTest, FTZMode) { ModifyMXCSR mxcsr(FTZ); EXPECT_FP_EQ(-0x1.66d3e7bd9a403p5f, LIBC_NAMESPACE::log10f(min_denormal)); } TEST_F(LlvmLibcLog10fTest, DAZMode) { ModifyMXCSR mxcsr(DAZ); EXPECT_FP_EQ(FPBits::inf(Sign::NEG).get_val(), LIBC_NAMESPACE::log10f(min_denormal)); } TEST_F(LlvmLibcLog10fTest, FTZDAZMode) { ModifyMXCSR mxcsr(FTZ | DAZ); EXPECT_FP_EQ(FPBits::inf(Sign::NEG).get_val(), LIBC_NAMESPACE::log10f(min_denormal)); } #endif