libstdc++-v3/testsuite/26_numerics/headers/complex.h/std_c++98.h

   1 // Copyright (C) 2017-2021 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++98" }
  19
  20 #include <complex.h>
  21
  22 // Should be equivalent to C99 <complex>, not C++ <complex>
  23 namespace std
  24 {
  25   struct complex;
  26 }
  27
  28 #if _GLIBCXX_HAVE_COMPLEX_H
  29 namespace test
  30 {
  31   using ::cacos;
  32   using ::casin;
  33   using ::catan;
  34   using ::ccos;
  35   using ::csin;
  36   using ::ctan;
  37   using ::ccosh;
  38   using ::csinh;
  39   using ::ctanh;
  40   using ::cexp;
  41   using ::clog;
  42   using ::cabs;
  43   using ::cpow;
  44   using ::csqrt;
  45   using ::carg;
  46   using ::cimag;
  47   using ::conj;
  48   using ::cproj;
  49   using ::creal;
  50 }
  51 #endif
  52
  53 #ifndef complex
  54 # error "'complex' is not defined as a macro by <complex.h> for -std=c++98"
  55 #endif