libstdc++-v3/testsuite/26_numerics/complex/c99.cc

   1 // { dg-do compile { target c++11 } }
   2 // { dg-options "-Wno-pedantic" }
   3
   4 // Copyright (C) 2012-2018 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // libstdc++/54112
  22 #include <bits/c++config.h>
  23 #if _GLIBCXX_HAVE_COMPLEX_H
  24 # include <complex.h>
  25 #endif
  26
  27 int main()
  28 {
  29 #if _GLIBCXX_HAVE_COMPLEX_H && !defined(__STRICT_ANSI__)
  30   // This is a GNU extension.
  31   double _Complex x = .5;
  32   double _Complex y = cacos (x);
  33   (void)y;
  34 #endif
  35 }