libstdc++-v3/testsuite/27_io/basic_stringbuf/str/wchar_t/2.cc

   1 // 981208 bkoz test functionality of basic_stringbuf for char_type == wchar_t
   2
   3 // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009
   4 // 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 #include <sstream>
  22 #include <testsuite_hooks.h>
  23
  24 // http://gcc.gnu.org/ml/libstdc++/2003-02/msg00269.html
  25 // Growing and then seeking to ios_base::beg triggered a bug in str(),
  26 // which didn't notice the grow.
  27 void test07()
  28 {
  29   bool test __attribute__((unused)) = true;
  30
  31   std::wstringbuf strb_01;
  32   strb_01.sputc(L's');
  33   strb_01.pubseekoff(0, std::ios_base::beg);
  34   std::wstring tmp = strb_01.str();
  35   VERIFY( tmp == L"s" );
  36
  37   std::wstring str(L"strivi,");
  38   std::wstringbuf strb_02(str);
  39   strb_02.pubseekoff(0, std::ios_base::end);
  40   strb_02.sputn(L" no better!", 11);
  41   strb_02.pubseekoff(0, std::ios_base::beg);
  42   tmp = strb_02.str();
  43   VERIFY( tmp == L"strivi, no better!" );
  44 }
  45
  46 int main()
  47 {
  48   test07();
  49   return 0;
  50 }
  51
  52
  53
  54 // more candy!!!