1//===-- Unittests for 10^x ------------------------------------------------===//
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/__support/libc_errno.h"
12#include "src/math/exp10.h"
13#include "test/UnitTest/FPMatcher.h"
14#include "test/UnitTest/Test.h"
15
16#include <stdint.h>
17
18using LlvmLibcExp10Test = LIBC_NAMESPACE::testing::FPTest<double>;
19
20TEST_F(LlvmLibcExp10Test, SpecialNumbers) {
21 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::exp10(sNaN), FE_INVALID);
22 EXPECT_MATH_ERRNO(0);
23
24 EXPECT_FP_EQ(aNaN, LIBC_NAMESPACE::exp10(aNaN));
25 EXPECT_FP_EQ(inf, LIBC_NAMESPACE::exp10(inf));
26 EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::exp10(neg_inf));
27 EXPECT_FP_EQ_WITH_EXCEPTION(zero, LIBC_NAMESPACE::exp10(-0x1.0p20),
28 FE_UNDERFLOW);
29 EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::exp10(0x1.0p20),
30 FE_OVERFLOW);
31 EXPECT_FP_EQ_ALL_ROUNDING(1.0, LIBC_NAMESPACE::exp10(0.0));
32 EXPECT_FP_EQ_ALL_ROUNDING(1.0, LIBC_NAMESPACE::exp10(-0.0));
33
34 EXPECT_FP_EQ_ALL_ROUNDING(10.0, LIBC_NAMESPACE::exp10(1.0));
35 EXPECT_FP_EQ_ALL_ROUNDING(100.0, LIBC_NAMESPACE::exp10(2.0));
36 EXPECT_FP_EQ_ALL_ROUNDING(1000.0, LIBC_NAMESPACE::exp10(3.0));
37}
38
39#ifdef LIBC_TEST_FTZ_DAZ
40
41using namespace LIBC_NAMESPACE::testing;
42
43TEST_F(LlvmLibcExp10Test, FTZMode) {
44 ModifyMXCSR mxcsr(FTZ);
45
46 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(min_denormal));
47 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(max_denormal));
48}
49
50TEST_F(LlvmLibcExp10Test, DAZMode) {
51 ModifyMXCSR mxcsr(DAZ);
52
53 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(min_denormal));
54 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(max_denormal));
55}
56
57TEST_F(LlvmLibcExp10Test, FTZDAZMode) {
58 ModifyMXCSR mxcsr(FTZ | DAZ);
59
60 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(min_denormal));
61 EXPECT_FP_EQ(1.0, LIBC_NAMESPACE::exp10(max_denormal));
62}
63
64#endif
65

Provided by KDAB

Privacy Policy
Learn to use CMake with our Intro Training
Find out more

source code of libc/test/src/math/smoke/exp10_test.cpp