1//===-- Unittests for exp10f ----------------------------------------------===//
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/exp10f.h"
13#include "test/UnitTest/FPMatcher.h"
14#include "test/UnitTest/Test.h"
15
16#include <stdint.h>
17
18using LlvmLibcExp10fTest = LIBC_NAMESPACE::testing::FPTest<float>;
19
20TEST_F(LlvmLibcExp10fTest, SpecialNumbers) {
21 libc_errno = 0;
22
23 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::exp10f(sNaN), FE_INVALID);
24 EXPECT_MATH_ERRNO(0);
25
26 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::exp10f(aNaN));
27 EXPECT_MATH_ERRNO(0);
28
29 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::exp10f(inf));
30 EXPECT_MATH_ERRNO(0);
31
32 EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::exp10f(neg_inf));
33 EXPECT_MATH_ERRNO(0);
34
35 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::exp10f(0.0f));
36 EXPECT_MATH_ERRNO(0);
37
38 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::exp10f(-0.0f));
39 EXPECT_MATH_ERRNO(0);
40
41 EXPECT_FP_EQ_ALL_ROUNDING(10.0f, LIBC_NAMESPACE::exp10f(1.0f));
42 EXPECT_FP_EQ_ALL_ROUNDING(100.0f, LIBC_NAMESPACE::exp10f(2.0f));
43 EXPECT_FP_EQ_ALL_ROUNDING(1000.0f, LIBC_NAMESPACE::exp10f(3.0f));
44}
45
46TEST_F(LlvmLibcExp10fTest, Overflow) {
47 libc_errno = 0;
48 EXPECT_FP_EQ_WITH_EXCEPTION(
49 inf, LIBC_NAMESPACE::exp10f(FPBits(0x7f7fffffU).get_val()), FE_OVERFLOW);
50 EXPECT_MATH_ERRNO(ERANGE);
51
52 EXPECT_FP_EQ_WITH_EXCEPTION(
53 inf, LIBC_NAMESPACE::exp10f(FPBits(0x43000000U).get_val()), FE_OVERFLOW);
54 EXPECT_MATH_ERRNO(ERANGE);
55
56 EXPECT_FP_EQ_WITH_EXCEPTION(
57 inf, LIBC_NAMESPACE::exp10f(FPBits(0x43000001U).get_val()), FE_OVERFLOW);
58 EXPECT_MATH_ERRNO(ERANGE);
59}
60
61#ifdef LIBC_TEST_FTZ_DAZ
62
63using namespace LIBC_NAMESPACE::testing;
64
65TEST_F(LlvmLibcExp10fTest, FTZMode) {
66 ModifyMXCSR mxcsr(FTZ);
67
68 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(min_denormal));
69 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(max_denormal));
70}
71
72TEST_F(LlvmLibcExp10fTest, DAZMode) {
73 ModifyMXCSR mxcsr(DAZ);
74
75 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(min_denormal));
76 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(max_denormal));
77}
78
79TEST_F(LlvmLibcExp10fTest, FTZDAZMode) {
80 ModifyMXCSR mxcsr(FTZ | DAZ);
81
82 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(min_denormal));
83 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::exp10f(max_denormal));
84}
85
86#endif
87

source code of libc/test/src/math/smoke/exp10f_test.cpp