67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
/**************************************************************************
|
|
*
|
|
* swap.cpp - Example program of swap algorithm.
|
|
*
|
|
* $Id: swap.cpp 550991 2007-06-26 23:58:07Z sebor $
|
|
*
|
|
***************************************************************************
|
|
*
|
|
* 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 copy, iter_swap
|
|
#include <iostream> // for cout, endl
|
|
#include <iterator> // for ostream_iterator
|
|
#include <vector> // for vector
|
|
|
|
int main ()
|
|
{
|
|
typedef std::ostream_iterator<int, char, std::char_traits<char> > Iter;
|
|
|
|
const int a[] = { 6, 7, 8, 9, 10, 1, 2, 3, 4, 5 };
|
|
|
|
// Set up a vector.
|
|
std::vector<int, std::allocator<int> > v (a, a + sizeof a / sizeof *a);
|
|
|
|
// Output original vector.
|
|
std::cout << "For the vector: ";
|
|
std::copy (v.begin (), v.end (), Iter (std::cout, " "));
|
|
|
|
// Swap the first five elements with the last five elements.
|
|
std::swap_ranges (v.begin (), v.begin () + 5, v.begin () + 5);
|
|
|
|
// Output result.
|
|
std::cout << "\n\nSwaping the first five elements "
|
|
"with the last five gives: \n ";
|
|
|
|
std::copy (v.begin (), v.end (), Iter (std::cout," "));
|
|
|
|
// Now an example of iter_swap -- swap first and last elements.
|
|
std::iter_swap (v.begin(), v.end () - 1);
|
|
|
|
// Output result.
|
|
std::cout << "\n\nSwaping the first and last elements gives: \n ";
|
|
std::copy (v.begin (), v.end (), Iter (std::cout, " "));
|
|
|
|
std::cout << std::endl;
|
|
|
|
return 0;
|
|
}
|