libstdc++-v3/testsuite/25_algorithms/copy/streambuf_iterators/char/4.cc

   1 // 2006-03-20  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2020 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 <fstream>
  22 #include <algorithm>
  23 #include <cstring>
  24 #include <vector>
  25
  26 #include <testsuite_hooks.h>
  27
  28 // { dg-require-fileio "" }
  29
  30 // In the occasion of libstdc++/25482
  31 void test01()
  32 {
  33   using namespace std;
  34
  35   typedef istreambuf_iterator<char> in_iterator_type;
  36
  37   ifstream fbuf_ref("istream_unformatted-1.txt"),
  38            fbuf("istream_unformatted-1.txt");
  39
  40   char buffer_ref[16500],
  41        buffer[16500];
  42
  43   fbuf_ref.read(buffer_ref, 16500);
  44
  45   in_iterator_type beg(fbuf);
  46   in_iterator_type end;
  47   copy(beg, end, buffer);
  48
  49   VERIFY( fbuf_ref.good() );
  50   VERIFY( fbuf.good() );
  51
  52   VERIFY( !memcmp(buffer, buffer_ref, 16500) );
  53 }
  54
  55 void test02()
  56 {
  57   using namespace std;
  58
  59   typedef istreambuf_iterator<char> in_iterator_type;
  60
  61   ifstream fbuf_ref("istream_unformatted-1.txt"),
  62            fbuf("istream_unformatted-1.txt");
  63
  64   char buffer_ref[16500];
  65   std::vector<char> buffer(16500, 'a');
  66
  67   fbuf_ref.read(buffer_ref, 16500);
  68
  69   in_iterator_type beg(fbuf);
  70   in_iterator_type end;
  71   copy(beg, end, buffer.begin());
  72
  73   VERIFY( fbuf_ref.good() );
  74   VERIFY( fbuf.good() );
  75
  76   VERIFY( !memcmp(buffer.data(), buffer_ref, 16500) );
  77 }
  78
  79 int main()
  80 {
  81   test01();
  82   test02();
  83   return 0;
  84 }