=====begin=====
Syntax:

<code>
    #include <set>
    iterator begin();
    const_iterator begin() const;
</code>

The function begin() returns an iterator to the first element of the multiset.
begin() should run in [[/complexity|constant time]].

For example, the following code uses begin() to initialize an iterator that is
used to traverse the elements of a multiset:

<code>
    multiset<int> ms;
    multiset<int>::iterator iter;
    int i;
	
    for (i = 1; i < 5; i++) {
        ms.insert(i);
        ms.insert(i*i);
        ms.insert(i-1);
    }
	
    cout << "ms is:" ;
    for (iter = ms.begin(); iter != ms.end(); iter++)
        cout << " " << *iter;
    cout << "." << endl;
</code>

The above code produces the following output:

<code terminal>
ms is: 0 1 1 1 2 2 3 3 4 4 9 16.
</code>

Related Topics: [[end]], [[rbegin]], [[rend]]