1//===-- Unittests for atanhf ----------------------------------------------===//
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/errno/libc_errno.h"
12#include "src/math/atanhf.h"
13#include "test/UnitTest/FPMatcher.h"
14#include "test/UnitTest/Test.h"
15
16#include <errno.h>
17#include <stdint.h>
18
19using LlvmLibcAtanhfTest = LIBC_NAMESPACE::testing::FPTest<float>;
20
21TEST_F(LlvmLibcAtanhfTest, SpecialNumbers) {
22
23 LIBC_NAMESPACE::libc_errno = 0;
24
25 LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
26 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::atanhf(aNaN));
27 EXPECT_FP_EXCEPTION(0);
28 EXPECT_MATH_ERRNO(0);
29
30 LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
31 EXPECT_FP_EQ_ALL_ROUNDING(0.0f, LIBC_NAMESPACE::atanhf(0.0f));
32 EXPECT_FP_EXCEPTION(0);
33 EXPECT_MATH_ERRNO(0);
34
35 LIBC_NAMESPACE::fputil::clear_except(FE_ALL_EXCEPT);
36 EXPECT_FP_EQ_ALL_ROUNDING(-0.0f, LIBC_NAMESPACE::atanhf(-0.0f));
37 EXPECT_FP_EXCEPTION(0);
38 EXPECT_MATH_ERRNO(0);
39
40 EXPECT_FP_EQ_WITH_EXCEPTION(inf, LIBC_NAMESPACE::atanhf(1.0f), FE_DIVBYZERO);
41 EXPECT_MATH_ERRNO(ERANGE);
42
43 EXPECT_FP_EQ_WITH_EXCEPTION(neg_inf, LIBC_NAMESPACE::atanhf(-1.0f),
44 FE_DIVBYZERO);
45 EXPECT_MATH_ERRNO(ERANGE);
46
47 auto bt = FPBits(1.0f);
48 bt.set_uintval(bt.uintval() + 1);
49
50 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::atanhf(bt.get_val()),
51 FE_INVALID);
52 EXPECT_MATH_ERRNO(EDOM);
53
54 bt.set_sign(Sign::NEG);
55 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::atanhf(bt.get_val()),
56 FE_INVALID);
57 EXPECT_MATH_ERRNO(EDOM);
58
59 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::atanhf(2.0f), FE_INVALID);
60 EXPECT_MATH_ERRNO(EDOM);
61
62 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::atanhf(-2.0f), FE_INVALID);
63 EXPECT_MATH_ERRNO(EDOM);
64
65 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::atanhf(inf), FE_INVALID);
66 EXPECT_MATH_ERRNO(EDOM);
67
68 bt.set_sign(Sign::NEG);
69 EXPECT_FP_IS_NAN_WITH_EXCEPTION(LIBC_NAMESPACE::atanhf(neg_inf), FE_INVALID);
70 EXPECT_MATH_ERRNO(EDOM);
71}
72

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