libstdc++-v3/testsuite/27_io/basic_stringbuf/snextc/wchar_t/1.cc

   1 // 981208 bkoz test functionality of basic_stringbuf for char_type == wchar_t
   2
   3 // Copyright (C) 1997-2020 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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <sstream>
  21 #include <testsuite_hooks.h>
  22
  23 std::wstring str_01(L"mykonos. . . or what?");
  24 std::wstring str_02(L"paris, or sainte-maxime?");
  25 std::wstring str_03;
  26 std::wstringbuf strb_01(str_01);
  27 std::wstringbuf strb_02(str_02, std::ios_base::in);
  28 std::wstringbuf strb_03(str_03, std::ios_base::out);
  29
  30 // test overloaded virtual functions
  31 void test04()
  32 {
  33   typedef std::wstringbuf::int_type int_type;
  34   typedef std::wstringbuf::traits_type traits_type;
  35
  36   // GET
  37   strb_01.in_avail();
  38   strb_02.in_avail();
  39   strb_03.in_avail();
  40
  41   strb_01.sbumpc();
  42   strb_02.sbumpc();
  43   strb_01.sbumpc();
  44   strb_02.sbumpc();
  45   int_type c5 = strb_03.sbumpc();
  46
  47   // int_type sgetc()
  48   // if read_cur not avail, return uflow(), else return *read_cur
  49   int_type c6 = strb_01.sgetc();
  50   int_type c7 = strb_02.sgetc();
  51   int_type c8 = strb_01.sgetc();
  52   int_type c9 = strb_02.sgetc();
  53   c5 = strb_03.sgetc();
  54
  55   // int_type snextc()
  56   // calls sbumpc and if sbumpc != eof, return sgetc
  57   c6 = strb_01.snextc();
  58   c7 = strb_02.snextc();
  59   VERIFY( c6 != c8 );
  60   VERIFY( c7 != c9 );
  61   VERIFY( c6 == traits_type::to_int_type(str_01[3]) );
  62   VERIFY( c7 == traits_type::to_int_type(str_02[3]) ); //should equal fourth letter at this point
  63   c5 = strb_03.snextc();
  64   VERIFY( c5 == traits_type::eof() );
  65 }
  66
  67 int main()
  68 {
  69   test04();
  70   return 0;
  71 }
  72
  73
  74
  75 // more candy!!!