C++程序  |  19行  |  451 B

//===----------------------------------------------------------------------===//
//
//                     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.
//
//===----------------------------------------------------------------------===//

// <complex.h>

#include <complex.h>

int main()
{
    std::complex<double> d;
    (void)d;
}