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

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