71 lines · cpp
1//===-- Unittests for log10f ----------------------------------------------===//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 "hdr/errno_macros.h"10#include "hdr/math_macros.h"11#include "hdr/stdint_proxy.h"12#include "src/__support/FPUtil/FPBits.h"13#include "src/math/log10f.h"14#include "test/UnitTest/FPMatcher.h"15#include "test/UnitTest/Test.h"16 17using LlvmLibcLog10fTest = LIBC_NAMESPACE::testing::FPTest<float>;18 19TEST_F(LlvmLibcLog10fTest, SpecialNumbers) {20 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::log10f(sNaN), FE_INVALID);21 EXPECT_MATH_ERRNO(0);22 23 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::log10f(aNaN));24 EXPECT_FP_EQ(inf, LIBC_NAMESPACE::log10f(inf));25 EXPECT_MATH_ERRNO(0);26 27 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log10f(neg_inf), FE_INVALID);28 EXPECT_MATH_ERRNO(EDOM);29 EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log10f(0.0f),30 FE_DIVBYZERO);31 EXPECT_MATH_ERRNO(ERANGE);32 EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log10f(-0.0f),33 FE_DIVBYZERO);34 EXPECT_MATH_ERRNO(ERANGE);35 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log10f(-1.0f), FE_INVALID);36 EXPECT_MATH_ERRNO(EDOM);37 38 EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::log10f(1.0f));39 40 float x = 1.0f;41 for (int i = 0; i < 11; ++i, x *= 10.0f) {42 EXPECT_FP_EQ_ALL_ROUNDING(static_cast<float>(i), LIBC_NAMESPACE::log10f(x));43 }44}45 46#ifdef LIBC_TEST_FTZ_DAZ47 48using namespace LIBC_NAMESPACE::testing;49 50TEST_F(LlvmLibcLog10fTest, FTZMode) {51 ModifyMXCSR mxcsr(FTZ);52 53 EXPECT_FP_EQ(-0x1.66d3e7bd9a403p5f, LIBC_NAMESPACE::log10f(min_denormal));54}55 56TEST_F(LlvmLibcLog10fTest, DAZMode) {57 ModifyMXCSR mxcsr(DAZ);58 59 EXPECT_FP_EQ(FPBits::inf(Sign::NEG).get_val(),60 LIBC_NAMESPACE::log10f(min_denormal));61}62 63TEST_F(LlvmLibcLog10fTest, FTZDAZMode) {64 ModifyMXCSR mxcsr(FTZ | DAZ);65 66 EXPECT_FP_EQ(FPBits::inf(Sign::NEG).get_val(),67 LIBC_NAMESPACE::log10f(min_denormal));68}69 70#endif71