libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/char/2.cc

   1 // 2006-03-20  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2014 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 <iterator>
  21 #include <sstream>
  22 #include <algorithm>
  23 #include <cstring>
  24 #include <testsuite_hooks.h>
  25
  26 // In the occasion of libstdc++/25482
  27 void test01()
  28 {
  29   bool test __attribute__((unused)) = true;
  30   using namespace std;
  31
  32   typedef istreambuf_iterator<char> in_iterator_type;
  33
  34   const char data1[] = "Drei Phantasien nach Friedrich Holderlin";
  35   const string str1(data1);
  36   istringstream iss1(str1);
  37   in_iterator_type beg1(iss1);
  38   in_iterator_type end1;
  39
  40   char buffer1[sizeof(data1) * 5];
  41   memset(buffer1, '*', sizeof(buffer1));
  42   char* out1 = buffer1;
  43
  44   out1 = copy(beg1, beg1, out1);
  45   VERIFY( out1 == buffer1 );
  46
  47   out1 = copy(end1, end1, out1);
  48   VERIFY( out1 == buffer1 );
  49
  50   out1 = copy(beg1, end1, out1);
  51   VERIFY( string(buffer1, out1) == str1 );
  52   *out1++ = 'x';
  53   VERIFY( string(buffer1, out1) == str1 + 'x' );
  54   memset(buffer1, '*', sizeof(buffer1));
  55
  56   iss1.seekg(0);
  57   out1 = buffer1;
  58   memset(buffer1, '*', sizeof(buffer1));
  59   out1 = copy(beg1, end1, out1);
  60   VERIFY( string(buffer1, out1) == str1 );
  61   *out1++ = 'y';
  62   VERIFY( string(buffer1, out1) == str1 + 'y' );
  63   out1 = buffer1;
  64   memset(buffer1, '*', sizeof(buffer1));
  65   out1 = copy(beg1, end1, out1);
  66   VERIFY( string(buffer1, out1) == "" );
  67
  68   iss1.seekg(0);
  69   out1 = copy(beg1, end1, out1);
  70   VERIFY( string(buffer1, out1) == str1 );
  71 }
  72
  73 int main()
  74 {
  75   test01();
  76   return 0;
  77 }