1//===----------------------------------------------------------------------===//
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// <complex>
10
11// template<class T>
12// complex<T>
13// sin(const complex<T>& x);
14
15#include <complex>
16#include <cassert>
17
18#include "test_macros.h"
19#include "../cases.h"
20
21template <class T>
22void
23test(const std::complex<T>& c, std::complex<T> x)
24{
25 assert(sin(c) == x);
26}
27
28template <class T>
29void
30test()
31{
32 test(std::complex<T>(0, 0), std::complex<T>(0, 0));
33}
34
35void test_edges()
36{
37 const unsigned N = sizeof(testcases) / sizeof(testcases[0]);
38 for (unsigned i = 0; i < N; ++i)
39 {
40 std::complex<double> r = sin(testcases[i]);
41 std::complex<double> t1(-imag(testcases[i]), real(testcases[i]));
42 std::complex<double> t2 = sinh(z: t1);
43 std::complex<double> z(imag(z: t2), -real(z: t2));
44 if (std::isnan(x: real(z: r)))
45 assert(std::isnan(real(z)));
46 else
47 {
48 assert(real(r) == real(z));
49 assert(std::signbit(real(r)) == std::signbit(real(z)));
50 }
51 if (std::isnan(x: imag(z: r)))
52 assert(std::isnan(imag(z)));
53 else
54 {
55 assert(imag(r) == imag(z));
56 assert(std::signbit(imag(r)) == std::signbit(imag(z)));
57 }
58 }
59}
60
61int main(int, char**)
62{
63 test<float>();
64 test<double>();
65 test<long double>();
66 test_edges();
67
68 return 0;
69}
70

source code of libcxx/test/std/numerics/complex.number/complex.transcendentals/sin.pass.cpp