Insert all elements of list1 before the first element with value 3 of list2 : list splice « list « C++ Tutorial

Home
C++ Tutorial
1.Language Basics
2.Data Types
3.Operators statements
4.Array
5.Development
6.Exceptions
7.Function
8.Structure
9.Class
10.Operator Overloading
11.Pointer
12.File Stream
13.template
14.STL Introduction
15.string
16.vector
17.list
18.bitset
19.set multiset
20.valarray
21.queue stack
22.deque
23.map multimap
24.STL Algorithms Modifying sequence operations
25.STL Algorithms Non modifying sequence operations
26.STL Algorithms Binary search
27.STL Algorithms Sorting
28.STL Algorithms Merge
29.STL Algorithms Min Max
30.STL Algorithms Iterator
31.STL Algorithms Heap
32.STL Algorithms Helper
C / ANSI-C
C Tutorial
C++
Visual C++ .NET
C++ Tutorial » list » list splice 
17.15.2.Insert all elements of list1 before the first element with value 3 of list2
/* The following code example is taken from the book
 * "The C++ Standard Library - A Tutorial and Reference"
 * by Nicolai M. Josuttis, Addison-Wesley, 1999
 *
 * (C) Copyright Nicolai M. Josuttis 1999.
 * Permission to copy, use, modify, sell and distribute this software
 * is granted provided this copyright notice appears in all copies.
 * This software is provided "as is" without express or implied
 * warranty, and with no claim as to its suitability for any purpose.
 */
#include <iostream>
#include <list>
#include <algorithm>
#include <iterator>
using namespace std;

void printLists (const list<int>& l1, const list<int>& l2)
{
    cout << "list1: ";
    copy (l1.begin(), l1.end(), ostream_iterator<int>(cout," "));
    cout << endl << "list2: ";
    copy (l2.begin(), l2.end(), ostream_iterator<int>(cout," "));
    cout << endl << endl;
}

int main()
{
    // create two empty lists
    list<int> list1, list2;

    // fill both lists with elements
    for (int i=0; i<6; ++i) {
        list1.push_back(i);
        list2.push_front(i);
    }
    printLists(list1, list2);

    // insert all elements of list1 before the first element with value 3 of list2
    // - find() returns an iterator to the first element with value 3
    list2.splice(find(list2.begin(),list2.end(),  // destination position
                      3),
                 list1);                          // source list
    printLists(list1, list2);

}
list1: 0 1 2 3 4 5
list2: 5 4 3 2 1 0

list1:
list2: 5 4 0 1 2 3 4 5 3 2 1 0
17.15.list splice
17.15.1.Use list.splice() to remove elements in a list and insert at end of values
17.15.2.Insert all elements of list1 before the first element with value 3 of list2
17.15.3.splice one list into another
17.15.4.Move first element to the end
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.