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
13 using LlvmLibcSincosTest = LIBC_NAMESPACE::testing::FPTest<double>;
14
TEST_F(LlvmLibcSincosTest,SpecialNumbers)15 TEST_F(LlvmLibcSincosTest, SpecialNumbers) {
16 double sin_x, cos_x;
17
18 LIBC_NAMESPACE::sincos(aNaN, &sin_x, &cos_x);
19 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
20 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
21
22 LIBC_NAMESPACE::sincos(zero, &sin_x, &cos_x);
23 EXPECT_FP_EQ_ALL_ROUNDING(1.0, cos_x);
24 EXPECT_FP_EQ_ALL_ROUNDING(0.0, sin_x);
25
26 LIBC_NAMESPACE::sincos(neg_zero, &sin_x, &cos_x);
27 EXPECT_FP_EQ_ALL_ROUNDING(1.0, cos_x);
28 EXPECT_FP_EQ_ALL_ROUNDING(neg_zero, sin_x);
29
30 LIBC_NAMESPACE::sincos(inf, &sin_x, &cos_x);
31 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
32 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
33
34 LIBC_NAMESPACE::sincos(neg_inf, &sin_x, &cos_x);
35 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
36 EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
37
38 LIBC_NAMESPACE::sincos(0x1.0p-28, &sin_x, &cos_x);
39 EXPECT_FP_EQ(1.0, cos_x);
40 EXPECT_FP_EQ(0x1.0p-28, sin_x);
41 }
42