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// Copyright (C) 2003 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 2, 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 COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// As a special exception, you may use this file as part of a free software

// library without restriction.  Specifically, if other files instantiate

// templates or use macros or inline functions from this file, or you compile

// this file and link it with other files to produce an executable, this

// file does not by itself cause the resulting executable to be covered by

// the GNU General Public License.  This exception does not however

// invalidate any other reasons why the executable file might be covered by

// the GNU General Public License.

#include <cstdio>

#include <cstring>

#include <fstream>

#include <langinfo.h>

#include <iconv.h>

#include <testsuite_performance.h>

// libstdc++/11602

int main(int argc, char** argv)

{

  using namespace std;

  using namespace __gnu_test;

  time_counter time;

  resource_counter resource;

  const int iters = 300000;

  wchar_t wbuf[1024];

  char cbuf[1024];

  wmemset(wbuf, L'a', 1024);

  // C (iconv)

  iconv_t cd = iconv_open(nl_langinfo(CODESET), "WCHAR_T");

  start_counters(time, resource);

  for (int i = 0; i < iters; ++i)

    {

      size_t inbytesleft = 1024 * sizeof(wchar_t);

      size_t outbytesleft = 1024;

      char* in = reinterpret_cast<char*>(wbuf);

      char* out = cbuf;

      iconv(cd, &in, &inbytesleft, &out, &outbytesleft);

    }

  stop_counters(time, resource);

  iconv_close(cd);

  report_performance(__FILE__, "C (iconv)", time, resource);

  clear_counters(time, resource);

  // C++ (codecvt)

  locale loc;

  const codecvt<wchar_t, char, mbstate_t>& cvt =

    use_facet<codecvt<wchar_t, char, mbstate_t> >(loc);

  mbstate_t state;

  memset(&state, 0, sizeof(state));

  start_counters(time, resource);

  for (int i = 0; i < iters; ++i)

    {

      const wchar_t* from_next;

      char* to_next;

      cvt.out(state, wbuf, wbuf + 1024, from_next,

              cbuf, cbuf + 1024, to_next);

    }

  stop_counters(time, resource);

  report_performance(__FILE__, "C++ (codecvt)", time, resource);

  return 0;

}