libstdc++-v3/testsuite/27_io/ios_base/callbacks/1.cc

   1 // 1999-11-10 bkoz
   2
   3 // Copyright (C) 1999, 2003 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 27.4.2.6 ios_base callbacks
  22
  23 #include <string>
  24 #include <sstream>
  25 #include <testsuite_hooks.h>
  26
  27 const std::string str01("the nubians of plutonia");
  28 std::string str02;
  29
  30 void
  31 callb01(std::ios_base::event,  std::ios_base&, int)
  32 { str02 += "the nubians"; }
  33
  34 void
  35 callb02(std::ios_base::event,  std::ios_base&, int)
  36 { str02 += " of "; }
  37
  38 void
  39 callb03(std::ios_base::event,  std::ios_base&, int)
  40 { str02 += "plutonia"; }
  41
  42 void test01()
  43 {
  44   bool test __attribute__((unused)) = true;
  45   std::locale loc("C");
  46   std::stringbuf        strbuf01;
  47   std::ios              ios01(&strbuf01);
  48
  49   ios01.register_callback(callb03, 1);
  50   ios01.register_callback(callb02, 1);
  51   ios01.register_callback(callb01, 1);
  52   ios01.imbue(loc);
  53   VERIFY( str01 == str02 );
  54 }
  55
  56
  57 int main(void)
  58 {
  59   test01();
  60   return 0;
  61 }
  62