1//===-- Unittests for cosf ------------------------------------------------===//
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/cosf.h"
13#include "test/UnitTest/FPMatcher.h"
14#include "test/UnitTest/Test.h"
15
16#include <errno.h>
17#include <stdint.h>
18
19using LlvmLibcCosfTest = LIBC_NAMESPACE::testing::FPTest<float>;
20
21TEST_F(LlvmLibcCosfTest, SpecialNumbers) {
22 LIBC_NAMESPACE::libc_errno = 0;
23
24 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::cosf(aNaN));
25 EXPECT_MATH_ERRNO(0);
26
27 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::cosf(0.0f));
28 EXPECT_MATH_ERRNO(0);
29
30 EXPECT_FP_EQ_ALL_ROUNDING(1.0f, LIBC_NAMESPACE::cosf(-0.0f));
31 EXPECT_MATH_ERRNO(0);
32
33 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::cosf(inf));
34 EXPECT_MATH_ERRNO(EDOM);
35
36 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::cosf(neg_inf));
37 EXPECT_MATH_ERRNO(EDOM);
38}
39

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