1*4080f174Slntue //===-- Unittests for sincos ----------------------------------------------===//
2*4080f174Slntue //
3*4080f174Slntue // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*4080f174Slntue // See https://llvm.org/LICENSE.txt for license information.
5*4080f174Slntue // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*4080f174Slntue //
7*4080f174Slntue //===----------------------------------------------------------------------===//
8*4080f174Slntue
9*4080f174Slntue #include "src/math/sincos.h"
10*4080f174Slntue #include "test/UnitTest/FPMatcher.h"
11*4080f174Slntue #include "test/UnitTest/Test.h"
12*4080f174Slntue
13*4080f174Slntue using LlvmLibcSincosTest = LIBC_NAMESPACE::testing::FPTest<double>;
14*4080f174Slntue
TEST_F(LlvmLibcSincosTest,SpecialNumbers)15*4080f174Slntue TEST_F(LlvmLibcSincosTest, SpecialNumbers) {
16*4080f174Slntue double sin_x, cos_x;
17*4080f174Slntue
18*4080f174Slntue LIBC_NAMESPACE::sincos(aNaN, &sin_x, &cos_x);
19*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
20*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
21*4080f174Slntue
22*4080f174Slntue LIBC_NAMESPACE::sincos(zero, &sin_x, &cos_x);
23*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(1.0, cos_x);
24*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(0.0, sin_x);
25*4080f174Slntue
26*4080f174Slntue LIBC_NAMESPACE::sincos(neg_zero, &sin_x, &cos_x);
27*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(1.0, cos_x);
28*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(neg_zero, sin_x);
29*4080f174Slntue
30*4080f174Slntue LIBC_NAMESPACE::sincos(inf, &sin_x, &cos_x);
31*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
32*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
33*4080f174Slntue
34*4080f174Slntue LIBC_NAMESPACE::sincos(neg_inf, &sin_x, &cos_x);
35*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(aNaN, cos_x);
36*4080f174Slntue EXPECT_FP_EQ_ALL_ROUNDING(aNaN, sin_x);
37*4080f174Slntue
38*4080f174Slntue LIBC_NAMESPACE::sincos(0x1.0p-28, &sin_x, &cos_x);
39*4080f174Slntue EXPECT_FP_EQ(1.0, cos_x);
40*4080f174Slntue EXPECT_FP_EQ(0x1.0p-28, sin_x);
41*4080f174Slntue }
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