=====lower_bound=====
Syntax:

<code>
    #include <set>
    iterator lower_bound( const key_type& key );
    const_iterator lower_bound( const key_type& key ) const;
</code>

The lower_bound method returns an iterator to the first element which has a value greater than or equal to ''key'', i.e. the iterator to the first element ''e'' that returns ''false'' when the template parameter functor ''Compare()(key, e)'' is called.

lower_bound runs in [[/complexity|logarithmic time]].

Related Topics: [[upper_bound]]