1  // Copyright (C) 2017-2023 Free Software Foundation, Inc.
       2  //
       3  // This file is part of the GNU ISO C++ Library.  This library is free
       4  // software; you can redistribute it and/or modify it under the
       5  // terms of the GNU General Public License as published by the
       6  // Free Software Foundation; either version 3, or (at your option)
       7  // any later version.
       8  
       9  // This library is distributed in the hope that it will be useful,
      10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
      11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12  // GNU General Public License for more details.
      13  
      14  // You should have received a copy of the GNU General Public License along
      15  // with this library; see the file COPYING3.  If not see
      16  // <http://www.gnu.org/licenses/>.
      17  
      18  // { dg-options "-std=c++11" }
      19  
      20  #include <complex.h>
      21  
      22  // Should be equivalent to #include <complex>
      23  template class std::complex<double>;
      24  
      25  #ifdef complex
      26  # error "'complex' is defined as a macro by <complex.h> for -std=c++11"
      27  #endif
      28  #ifdef imaginary
      29  # error "'imaginary' is defined as a macro by <complex.h> for -std=c++11"
      30  #endif
      31  #ifdef I
      32  # error "'I' is defined as a macro by <complex.h> for -std=c++11"
      33  #endif