libstdc++-v3/testsuite/27_io/basic_stringbuf/sputc/wchar_t/1.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 std::wstring str_01(L"mykonos. . . or what?");
  25 std::wstring str_02(L"paris, or sainte-maxime?");
  26 std::wstring str_03;
  27 std::wstringbuf strb_01(str_01);
  28 std::wstringbuf strb_02(str_02, std::ios_base::in);
  29 std::wstringbuf strb_03(str_03, std::ios_base::out);
  30
  31 // test overloaded virtual functions
  32 void test04()
  33 {
  34   bool test __attribute__((unused)) = true;
  35   typedef std::wstringbuf::int_type int_type;
  36   typedef std::wstringbuf::traits_type traits_type;
  37
  38   int_type c1 = strb_01.sbumpc();
  39   int_type c2 = strb_02.sbumpc();
  40   int_type c3 = strb_01.sbumpc();
  41
  42   // PUT
  43   // int_type sputc(char_type c)
  44   // if out_cur not avail, return overflow. Else, stores c at out_cur,
  45   // increments out_cur, and returns c as int_type
  46   strb_03.str(str_01); //reset
  47   std::wstring::size_type sz1 = strb_03.str().length();
  48   c1 = strb_03.sputc(L'a');
  49   std::wstring::size_type sz2 = strb_03.str().length();
  50   VERIFY( sz1 == sz2 ); //cuz inserting at out_cur, which is at beg to start
  51   c2 = strb_03.sputc(L'b');
  52   VERIFY( c1 != c2 );
  53   VERIFY( strb_03.str() != str_01 );
  54   c3 = strb_02.sputc(L'a'); // should be EOF because this is read-only
  55   VERIFY( c3 == traits_type::eof() );
  56 }
  57
  58 int main()
  59 {
  60   test04();
  61   return 0;
  62 }
  63
  64
  65
  66 // more candy!!!