//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <ctgmath>
#include <ctgmath>
int main()
{
std::complex<double> cd;
(void)cd;
double x = std::sin(0);
((void)x); // Prevent unused warning
}