gomp-20050608-branch/libstdc++-v3/testsuite/27_io/basic_istream/readsome/wchar_t/6746-1.cc

   1 // Copyright (C) 2004 Free Software Foundation
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 2, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // 27.6.1.3 unformatted input functions
  20
  21 #include <istream>
  22 #include <sstream>
  23 #include <testsuite_hooks.h>
  24
  25 // libstdc++/6746
  26 void test12()
  27 {
  28   using namespace std;
  29   bool test __attribute__((unused)) = true;
  30   streamsize sum = 0;
  31   wistringstream iss(L"shamma shamma");
  32
  33   // test01
  34   size_t i = iss.rdbuf()->in_avail();
  35   VERIFY( i != 0 );
  36
  37   // test02
  38   streamsize extracted;
  39   do
  40     {
  41       wchar_t buf[1024];
  42       extracted = iss.readsome(buf, sizeof(buf) / sizeof(wchar_t));
  43       sum += extracted;
  44     }
  45   while (iss.good() && extracted);
  46   VERIFY( sum != 0 );
  47 }
  48
  49 int
  50 main()
  51 {
  52   test12();
  53   return 0;
  54 }