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// 2000-08-17 Benjamin Kosnik <bkoz@cygnus.com>

// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009

// Free Software Foundation

//

// 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/>.

// 22.2.1.5 - Template class codecvt [lib.locale.codecvt]

#include <locale>

#include <cstring>

#include <testsuite_hooks.h>

// Required instantiation, degenerate conversion.

// codecvt<char, char, mbstate_t>

void test01()

{

  using namespace std;

  typedef codecvt_base::result                  result;

  typedef codecvt<char, char, mbstate_t>        c_codecvt;

  bool test __attribute__((unused)) = true;

  const char*           c_lit = "black pearl jasmine tea";

  const char*           from_next;

  int                   size = 23;

  char*                 c_arr = new char[size];

  char*                 c_ref = new char[size];

  char*                 to_next;

  locale                loc = locale::classic();

  c_codecvt::state_type state;

  const c_codecvt*      cvt = &use_facet<c_codecvt>(loc);

  // According to the resolution of DR19 (see also libstd++/9168), in

  // case of degenerate conversion ('noconv'), "there are no changes to

  // the values in [to, to_limit)."

  memset(c_ref, 'X', size);

  // in

  memset(c_arr, 'X', size);

  result r1 = cvt->in(state, c_lit, c_lit + size, from_next,

                      c_arr, c_arr + size, to_next);

  VERIFY( r1 == codecvt_base::noconv );

  VERIFY( !memcmp(c_arr, c_ref, size) );

  VERIFY( from_next == c_lit );

  VERIFY( to_next == c_arr );

  delete [] c_arr;

  delete [] c_ref;

}

int main ()

{

  test01();

  return 0;

}