libstdc++-v3/testsuite/21_strings/basic_string/cons/char/6.cc

   1 // 2004-01-30  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2004 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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 21.3.1 basic_string constructors.
  22
  23 #include <iterator>
  24 #include <sstream>
  25 #include <cstdlib>
  26 #include <testsuite_hooks.h>
  27
  28 using namespace std;
  29
  30 string data(long len)
  31 {
  32   string ret;
  33   for (long i = 0; i < len; ++i)
  34     ret.push_back('a' + rand() % 26);
  35   return ret;
  36 }
  37
  38 void test01(int iter)
  39 {
  40   bool test __attribute__((unused)) = true;
  41
  42   for (long i = 0, j = 1; i < iter; ++i, j *= 3)
  43     {
  44       istringstream isstr(data(j));
  45
  46       string str((istreambuf_iterator<char>(isstr)),
  47                  istreambuf_iterator<char>());
  48       VERIFY( str == isstr.str() );
  49     }
  50 }
  51
  52 int main()
  53 {
  54   test01(13);
  55   return 0;
  56 }