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-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "hdr/math_macros.h"
10 #include "src/__support/FPUtil/FPBits.h"
11 #include "src/math/log10f.h"
12 #include "test/UnitTest/FPMatcher.h"
13 #include "test/UnitTest/Test.h"
14
15 #include <errno.h>
16 #include <stdint.h>
17
18 using LlvmLibcLog10fTest = LIBC_NAMESPACE::testing::FPTest<float>;
19
TEST_F(LlvmLibcLog10fTest,SpecialNumbers)20 TEST_F(LlvmLibcLog10fTest, SpecialNumbers) {
21 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::log10f(aNaN));
22 EXPECT_FP_EQ(inf, LIBC_NAMESPACE::log10f(inf));
23 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log10f(neg_inf), FE_INVALID);
24 EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log10f(0.0f),
25 FE_DIVBYZERO);
26 EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::log10f(-0.0f),
27 FE_DIVBYZERO);
28 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::log10f(-1.0f), FE_INVALID);
29 EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::log10f(1.0f));
30
31 float x = 1.0f;
32 for (int i = 0; i < 11; ++i, x *= 10.0f) {
33 EXPECT_FP_EQ_ALL_ROUNDING(static_cast<float>(i), LIBC_NAMESPACE::log10f(x));
34 }
35 }
36