libstdc++-v3/testsuite/27_io/basic_stringbuf/setbuf/wchar_t/4.cc

   1 // 2004-10-06  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2004-2013 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 // 27.8.1.4 Overridden virtual functions
  21
  22 // { dg-options "-DMAX_SIZE=4096" { target simulator } }
  23
  24 #ifndef MAX_SIZE
  25 #define MAX_SIZE (1 << 18)
  26 #endif
  27
  28 #include <sstream>
  29 #include <testsuite_hooks.h>
  30
  31 void test01()
  32 {
  33   using namespace std;
  34   bool test __attribute__((unused)) = true;
  35
  36   const unsigned max_size = MAX_SIZE;
  37
  38   static wchar_t ref[max_size];
  39   wmemset(ref, L'\0', max_size);
  40
  41   static wchar_t src[max_size * 2];
  42   wmemset(src, L'\1', max_size * 2);
  43
  44   for (unsigned i = 128; i <= max_size; i *= 2)
  45     {
  46       wchar_t* dest = new wchar_t[i * 2];
  47       wmemset(dest, L'\0', i * 2);
  48
  49       wstringbuf sbuf;
  50       sbuf.pubsetbuf(dest, i);
  51
  52       sbuf.sputn(src, i * 2);
  53       VERIFY( !wmemcmp(dest + i, ref, i) );
  54
  55       delete[] dest;
  56     }
  57 }
  58
  59 int main()
  60 {
  61   test01();
  62   return 0;
  63 }