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// Copyright (C) 2006-2013 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <iterator>
#include <sstream>
#include <algorithm>
#include <testsuite_performance.h>
// libstdc++/25482
int main()
{
using namespace std;
using namespace __gnu_test;
typedef istreambuf_iterator<char> in_iterator_type;
typedef ostreambuf_iterator<char> out_iterator_type;
time_counter time;
resource_counter resource;
const char data[] = "Contrappunto dialettico alla mente";
// istreambuf iterators -> ostreambuf iterator
{
istringstream iss(data);
in_iterator_type beg(iss);
in_iterator_type end;
ostringstream oss;
out_iterator_type out(oss);
start_counters(time, resource);
for (unsigned i = 0; i < 10000000; ++i)
{
copy(beg, end, out);
iss.seekg(0);
oss.seekp(0);
}
stop_counters(time, resource);
report_performance(__FILE__, "isb iters -> osb iter", time, resource);
clear_counters(time, resource);
}
// char array -> ostreambuf iterator
{
const char* beg = data;
const char* end = data + sizeof(data) - 1;
ostringstream oss;
out_iterator_type out(oss);
start_counters(time, resource);
for (unsigned i = 0; i < 10000000; ++i)
{
copy(beg, end, out);
oss.seekp(0);
}
stop_counters(time, resource);
report_performance(__FILE__, "pointers -> osb iter", time, resource);
clear_counters(time, resource);
}
// istreambuf iterators -> char array
{
istringstream iss(data);
in_iterator_type beg(iss);
in_iterator_type end;
char out[sizeof(data)];
start_counters(time, resource);
for (unsigned i = 0; i < 10000000; ++i)
{
copy(beg, end, out);
iss.seekg(0);
}
stop_counters(time, resource);
report_performance(__FILE__, "isb iters -> pointer", time, resource);
clear_counters(time, resource);
}
return 0;
}
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