1//===-- Unittests for coshf -----------------------------------------------===//
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/CPP/array.h"
11#include "src/__support/FPUtil/FPBits.h"
12#include "src/__support/libc_errno.h"
13#include "src/math/coshf.h"
14#include "test/UnitTest/FPMatcher.h"
15#include "test/UnitTest/Test.h"
16
17#include <stdint.h>
18
19using LlvmLibcCoshfTest = LIBC_NAMESPACE::testing::FPTest<float>;
20
21TEST_F(LlvmLibcCoshfTest, SpecialNumbers) {
22 libc_errno = 0;
23
24 EXPECT_FP_EQ_WITH_EXCEPTION(aNaN, LIBC_NAMESPACE::coshf(sNaN), FE_INVALID);
25 EXPECT_MATH_ERRNO(0);
26
27 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::coshf(aNaN));
28 EXPECT_MATH_ERRNO(0);
29
30 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::coshf(inf));
31 EXPECT_MATH_ERRNO(0);
32
33 EXPECT_FP_EQ_ALL_ROUNDING(inf, LIBC_NAMESPACE::coshf(neg_inf));
34 EXPECT_MATH_ERRNO(0);
35
36 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::coshf(0.0f));
37 EXPECT_MATH_ERRNO(0);
38
39 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::coshf(-0.0f));
40 EXPECT_MATH_ERRNO(0);
41}
42
43TEST_F(LlvmLibcCoshfTest, Overflow) {
44 libc_errno = 0;
45 EXPECT_FP_EQ_WITH_EXCEPTION(
46 inf, LIBC_NAMESPACE::coshf(FPBits(0x7f7fffffU).get_val()), FE_OVERFLOW);
47 EXPECT_MATH_ERRNO(ERANGE);
48
49 EXPECT_FP_EQ_WITH_EXCEPTION(
50 inf, LIBC_NAMESPACE::coshf(FPBits(0x42cffff8U).get_val()), FE_OVERFLOW);
51 EXPECT_MATH_ERRNO(ERANGE);
52
53 EXPECT_FP_EQ_WITH_EXCEPTION(
54 inf, LIBC_NAMESPACE::coshf(FPBits(0x42d00008U).get_val()), FE_OVERFLOW);
55 EXPECT_MATH_ERRNO(ERANGE);
56}
57
58#ifdef LIBC_TEST_FTZ_DAZ
59
60using namespace LIBC_NAMESPACE::testing;
61
62TEST_F(LlvmLibcCoshfTest, FTZMode) {
63 ModifyMXCSR mxcsr(FTZ);
64
65 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(min_denormal));
66 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(max_denormal));
67}
68
69TEST_F(LlvmLibcCoshfTest, DAZMode) {
70 ModifyMXCSR mxcsr(DAZ);
71
72 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(min_denormal));
73 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(max_denormal));
74}
75
76TEST_F(LlvmLibcCoshfTest, FTZDAZMode) {
77 ModifyMXCSR mxcsr(FTZ | DAZ);
78
79 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(min_denormal));
80 EXPECT_FP_EQ(1.0f, LIBC_NAMESPACE::coshf(max_denormal));
81}
82
83#endif
84

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