examples/manual/reverse_iterator.cpp

/**************************************************************************
 *
 * reverse_iterator.cpp - Example program of reverse iterator.
 *
 * $Id$
 *
 ***************************************************************************
 *
 * Copyright 2005-2006 The Apache Software Foundation or its licensors,
 * as applicable.
 *
 * Copyright 1994-2006 Rogue Wave Software.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 **************************************************************************/

#include <iostream>   // for cout, endl
#include <vector>     // for vector

#include <examples.h>


int main ()
{
    typedef std::vector<int, std::allocator<int> > Vector;

    // Initialize a vector using an array.
    const Vector::value_type arr[] = { 3, 4, 7, 8 };
    const Vector v (arr + 0, arr + sizeof arr / sizeof *arr);

    // Output the original vector.
    std::cout << "Traversing vector with iterator: \n     ";
    for (Vector::const_iterator i = v.begin (); i != v.end (); ++i)
        std::cout << *i << " ";

    // Output the vector backwards.
    std::cout << "\n\nSame vector, same loop, reverse_itertor: \n     ";
    for (Vector::const_reverse_iterator j (v.end ());
         j != Vector::const_reverse_iterator (v.begin ()); ++j)
        std::cout << *j << " ";

    std::cout << std::endl;

    return 0;
}