libstdc++-v3/testsuite/27_io/basic_stringbuf/seekpos/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
   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 2, 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 COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  21
  22 #include <sstream>
  23 #include <testsuite_hooks.h>
  24
  25 std::wstring str_01(L"mykonos. . . or what?");
  26 std::wstring str_02(L"paris, or sainte-maxime?");
  27 std::wstring str_03;
  28 std::wstringbuf strb_01(str_01);
  29 std::wstringbuf strb_02(str_02, std::ios_base::in);
  30 std::wstringbuf strb_03(str_03, std::ios_base::out);
  31
  32 // test overloaded virtual functions
  33 void test04()
  34 {
  35   bool test __attribute__((unused)) = true;
  36   std::wstring          str_tmp;
  37   std::wstringbuf               strb_tmp;
  38   typedef std::wstringbuf::int_type int_type;
  39   typedef std::wstringbuf::traits_type traits_type;
  40   typedef std::wstringbuf::pos_type pos_type;
  41   typedef std::wstringbuf::off_type off_type;
  42
  43   int_type c1 = strb_01.sbumpc();
  44   int_type c2 = strb_02.sbumpc();
  45   int_type c3 = strb_01.sbumpc();
  46
  47   pos_type pt_1(off_type(-1));
  48   pos_type pt_2(off_type(0));
  49   off_type off_1 = 0;
  50   off_type off_2 = 0;
  51
  52   // PUT
  53   strb_03.str(str_01); //reset
  54
  55   // BUFFER MANAGEMENT & POSITIONING
  56
  57   // seekpos
  58   // pubseekpos(pos_type sp, ios_base::openmode)
  59   // alters the stream position to sp
  60   strb_01.str(str_01); //in|out ("mykonos. . . or what?");
  61   strb_02.str(str_02); //in ("paris, or sainte-maxime?");
  62   strb_03.str(str_03); //out ("")
  63   //IN|OUT
  64   //beg
  65   pt_1 = strb_01.pubseekoff(2, std::ios_base::beg);
  66   off_1 = off_type(pt_1);
  67   VERIFY( off_1 >= 0 );
  68   pt_1 = strb_01.pubseekoff(0, std::ios_base::cur, std::ios_base::out);
  69   off_1 = off_type(pt_1);
  70   c1 = strb_01.snextc(); //current in pointer +1
  71   VERIFY( c1 == L'o' );
  72   c2 = strb_01.sputc(L'x');  //test current out pointer
  73   str_tmp = std::wstring(L"myxonos. . . or what?");
  74   VERIFY( strb_01.str() == str_tmp );
  75   strb_01.pubsync(); //resets pointers
  76   pt_2 = strb_01.pubseekpos(pt_1, std::ios_base::in|std::ios_base::out);
  77   off_2 = off_type(pt_2);
  78   VERIFY( off_1 == off_2 );
  79   c3 = strb_01.snextc(); //current in pointer +1
  80   VERIFY( c1 == c3 );
  81   c2 = strb_01.sputc(L'x');  //test current out pointer
  82   str_tmp = std::wstring(L"myxonos. . . or what?");
  83   VERIFY( strb_01.str() == str_tmp );
  84 }
  85
  86 int main()
  87 {
  88   test04();
  89   return 0;
  90 }
  91
  92
  93
  94 // more candy!!!