| //===-- Unittests for log10 -----------------------------------------------===// |
| // |
| // 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/errno/libc_errno.h" |
| #include "src/math/log10.h" |
| #include "test/UnitTest/FPMatcher.h" |
| #include "test/UnitTest/Test.h" |
| |
| #include <errno.h> |
| #include <stdint.h> |
| |
| using LlvmLibcLog10Test = LIBC_NAMESPACE::testing::FPTest<double>; |
| |
| TEST_F(LlvmLibcLog10Test, SpecialNumbers) { |
| EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::log10(aNaN)); |
| EXPECT_FP_EQ(inf, LIBC_NAMESPACE::log10(inf)); |
| EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log10(neg_inf), FE_INVALID); |
| EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log10(0.0), |
| FE_DIVBYZERO); |
| EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log10(-0.0), |
| FE_DIVBYZERO); |
| EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log10(-1.0), FE_INVALID); |
| EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::log10(1.0)); |
| |
| double x = 1.0; |
| for (int i = 0; i < 11; ++i, x *= 10.0) { |
| EXPECT_FP_EQ_ALL_ROUNDING(static_cast<double>(i), LIBC_NAMESPACE::log10(x)); |
| } |
| } |