1//===-- Unittests for sincos ----------------------------------------------===//
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/math/sincos.h"
10#include "test/UnitTest/FPMatcher.h"
11#include "test/UnitTest/Test.h"
12
13using LlvmLibcSincosTest = LIBC_NAMESPACE::testing::FPTest<double>;
14
15TEST_F(LlvmLibcSincosTest, SpecialNumbers) {
16 double sin_x, cos_x;
17
18 LIBC_NAMESPACE::sincos(sNaN, &sin_x, &cos_x);
19 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
20 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
21 EXPECT_MATH_ERRNO(0);
22
23 LIBC_NAMESPACE::sincos(aNaN, &sin_x, &cos_x);
24 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
25 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
26
27 LIBC_NAMESPACE::sincos(zero, &sin_x, &cos_x);
28 EXPECT_FP_EQ_ALL_ROUNDING(1.0, cos_x);
29 EXPECT_FP_EQ_ALL_ROUNDING(0.0, sin_x);
30
31 LIBC_NAMESPACE::sincos(neg_zero, &sin_x, &cos_x);
32 EXPECT_FP_EQ_ALL_ROUNDING(1.0, cos_x);
33 EXPECT_FP_EQ_ALL_ROUNDING(neg_zero, sin_x);
34
35 LIBC_NAMESPACE::sincos(inf, &sin_x, &cos_x);
36 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
37 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
38
39 LIBC_NAMESPACE::sincos(neg_inf, &sin_x, &cos_x);
40 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
41 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
42
43 LIBC_NAMESPACE::sincos(0x1.0p-28, &sin_x, &cos_x);
44 EXPECT_FP_EQ(1.0, cos_x);
45 EXPECT_FP_EQ(0x1.0p-28, sin_x);
46}
47

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