1 //===-- Unittests for log10f16 --------------------------------------------===//
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/fenv_macros.h"
10 #include "src/__support/FPUtil/cast.h"
11 #include "src/errno/libc_errno.h"
12 #include "src/math/log10f16.h"
13 #include "test/UnitTest/FPMatcher.h"
14 #include "test/UnitTest/Test.h"
15
16 using LlvmLibcLog10f16Test = LIBC_NAMESPACE::testing::FPTest<float16>;
17
TEST_F(LlvmLibcLog10f16Test,SpecialNumbers)18 TEST_F(LlvmLibcLog10f16Test, SpecialNumbers) {
19 LIBC_NAMESPACE::libc_errno = 0;
20
21 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::log10f16(aNaN));
22 EXPECT_MATH_ERRNO(0);
23
24 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::log10f16(sNaN), FE_INVALID);
25 EXPECT_MATH_ERRNO(0);
26
27 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::log10f16(inf));
28 EXPECT_MATH_ERRNO(0);
29
30 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::log10f16(neg_inf));
31 EXPECT_MATH_ERRNO(EDOM);
32
33 EXPECT_FP_EQ_WITH_EXCEPTION_ALL_ROUNDING(
34 neg_inf, LIBC_NAMESPACE::log10f16(zero), FE_DIVBYZERO);
35 EXPECT_MATH_ERRNO(0);
36
37 EXPECT_FP_EQ_WITH_EXCEPTION_ALL_ROUNDING(
38 neg_inf, LIBC_NAMESPACE::log10f16(neg_zero), FE_DIVBYZERO);
39 EXPECT_MATH_ERRNO(0);
40
41 EXPECT_FP_EQ_ALL_ROUNDING(
42 zero,
43 LIBC_NAMESPACE::log10f16(LIBC_NAMESPACE::fputil::cast<float16>(1.0)));
44 EXPECT_MATH_ERRNO(0);
45
46 EXPECT_FP_EQ_ALL_ROUNDING(
47 aNaN,
48 LIBC_NAMESPACE::log10f16(LIBC_NAMESPACE::fputil::cast<float16>(-1.0)));
49 EXPECT_MATH_ERRNO(EDOM);
50 }
51