=====inplace_merge=====
Syntax:

<code>
    #include <algorithm>
    void inplace_merge( bidirectional_iterator start, bidirectional_iterator middle, bidirectional_iterator end );
    void inplace_merge( bidirectional_iterator start, bidirectional_iterator middle, bidirectional_iterator end, StrictWeakOrdering cmp );
</code>

The inplace_merge() function is similar to the merge() function, but instead of
creating a new sorted range of elements, inplace_merge() alters the existing
ranges to perform the merge in-place.

Related Topics: [[merge]]