libstdc++-v3/testsuite/27_io/basic_streambuf/sputbackc/wchar_t/9538.cc

   1 // 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001, 2002, 2003, 2004 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 // 27.8.1.4 Overridden virtual functions
  22
  23 #include <streambuf>
  24 #include <locale>
  25 #include <cwchar>
  26 #include <testsuite_hooks.h>
  27
  28 class MyTraits : public std::char_traits<wchar_t>
  29 {
  30 public:
  31   static bool eq(wchar_t c1, wchar_t c2)
  32   {
  33     bool test __attribute__((unused)) = true;
  34     VERIFY( c1 != L'X' );
  35     VERIFY( c2 != L'X' );
  36     return std::char_traits<wchar_t>::eq(c1, c2);
  37   }
  38 };
  39
  40 class MyBuf : public std::basic_streambuf<wchar_t, MyTraits>
  41 {
  42   wchar_t buffer[8];
  43
  44 public:
  45   MyBuf()
  46   {
  47     std::wmemset(buffer, L'X', sizeof(buffer) / sizeof(buffer[0]));
  48     std::wmemset(buffer + 2, L'f', 4);
  49     setg(buffer + 2, buffer + 2, buffer + 6);
  50   }
  51 };
  52
  53 // libstdc++/9538
  54 void test08()
  55 {
  56   bool test __attribute__((unused)) = true;
  57
  58   MyBuf mb;
  59   mb.sputbackc(L'a');
  60 }
  61
  62 int main()
  63 {
  64   test08();
  65   return 0;
  66 }