examples/manual/rotate.cpp

/**************************************************************************
 *
 * rotate.cpp - Example program of rotate algorithm. 
 *
 * $Id$
 *
 ***************************************************************************
 *
 * Licensed to the Apache Software  Foundation (ASF) under one or more
 * contributor  license agreements.  See  the NOTICE  file distributed
 * with  this  work  for  additional information  regarding  copyright
 * ownership.   The ASF  licenses this  file to  you 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.
 *
 * Copyright 1994-2006 Rogue Wave Software.
 * 
 **************************************************************************/

#include <algorithm>   // for rotate
#include <iostream>    // for cout, endl
#include <iterator>    // for ostream_iterator
#include <vector>      // for vector

#include <examples.h>


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

    // Initialize a vector with an array of integers.
    const Vector::value_type arr[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    Vector v (arr + 0, arr + sizeof arr / sizeof *arr);

    typedef std::ostream_iterator<int, char, std::char_traits<char> > Iter;

    // Print out elements in original (sorted) order.
    std::cout << "Elements before rotate: \n     ";
    std::copy (v.begin (), v.end (), Iter (std::cout, " "));

    // Rotate the elements.
    std::rotate (v.begin (), v.begin () + 4, v.end ());

    // Print out the rotated elements.
    std::cout << "\n\nElements after rotate: \n     ";
    std::copy (v.begin (), v.end (), Iter (std::cout, " "));
    std::cout << std::endl;

    return 0;
}