libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/3.cc

   1 // 2006-03-20  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2024 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 #include <iterator>
  21 #include <sstream>
  22 #include <algorithm>
  23 #include <testsuite_hooks.h>
  24
  25 // In the occasion of libstdc++/25482
  26 void test01()
  27 {
  28   using namespace std;
  29
  30   typedef ostreambuf_iterator<wchar_t> out_iterator_type;
  31
  32   const wchar_t data1[] = L"Drei Phantasien nach Friedrich Holderlin";
  33   const wstring str1(data1);
  34   const wchar_t* beg1 = data1;
  35   const wchar_t* end1 = beg1 + str1.size();
  36
  37   wostringstream oss1;
  38   out_iterator_type out1(oss1);
  39
  40   out1 = copy(beg1, beg1, out1);
  41   VERIFY( oss1.str().empty() );
  42
  43   out1 = copy(end1, end1, out1);
  44   VERIFY( oss1.str().empty() );
  45
  46   out1 = copy(beg1, end1, out1);
  47   VERIFY( oss1.str() == str1 );
  48   *out1 = L'x';
  49   VERIFY( oss1.str() == str1 + L'x' );
  50   oss1.str(L"");
  51
  52   oss1.seekp(0);
  53   oss1.str(L"");
  54   out1 = copy(beg1, end1, out1);
  55   VERIFY( oss1.str() == str1 );
  56   *out1 = L'y';
  57   VERIFY( oss1.str() == str1 + L'y' );
  58   oss1.str(L"");
  59   out1 = copy(beg1, end1, out1);
  60   VERIFY( oss1.str() == str1 );
  61
  62   out1 = copy(beg1, end1, out1);
  63   VERIFY( oss1.str() == str1 + str1 );
  64 }
  65
  66 int main()
  67 {
  68   test01();
  69   return 0;
  70 }