libstdc++-v3/testsuite/27_io/basic_stringbuf/seekoff/wchar_t/10975.cc

   1 // 2004-09-30  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2004-2024 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 // 27.7.1.3 Overridden virtual functions
  21
  22 #include <sstream>
  23 #include <testsuite_hooks.h>
  24
  25 // libstdc++/10975
  26 void test01()
  27 {
  28   using namespace std;
  29   typedef wstreambuf::pos_type pos_type;
  30   typedef wstreambuf::off_type off_type;
  31
  32   const pos_type good = pos_type(off_type(0));
  33   const pos_type bad = pos_type(off_type(-1));
  34   pos_type p;
  35
  36   wstringbuf sbuf;
  37
  38   p = sbuf.pubseekoff(0, ios_base::cur, ios_base::in);
  39   VERIFY( p == good );
  40
  41   p = sbuf.pubseekoff(0, ios_base::beg, ios_base::out);
  42   VERIFY( p == good );
  43
  44   p = sbuf.pubseekoff(0, ios_base::end);
  45   VERIFY( p == good );
  46
  47   p = sbuf.pubseekoff(0, ios_base::cur);
  48   VERIFY( p == bad );
  49 }
  50
  51 int main()
  52 {
  53   test01();
  54   return 0;
  55 }