C++ Tutorial/set multiset/set bound range
set: lower_bound, upper_bound, equal_range
<source lang="cpp">/* 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 <set>
using namespace std; int main () {
set<int> c; c.insert(1); c.insert(2); c.insert(4); c.insert(5); c.insert(6); cout << "lower_bound(3): " << *c.lower_bound(3) << endl; cout << "upper_bound(3): " << *c.upper_bound(3) << endl; cout << "equal_range(3): " << *c.equal_range(3).first << " " << *c.equal_range(3).second << endl; cout << endl; cout << "lower_bound(5): " << *c.lower_bound(5) << endl; cout << "upper_bound(5): " << *c.upper_bound(5) << endl; cout << "equal_range(5): " << *c.equal_range(5).first << " " << *c.equal_range(5).second << endl;
}</source>
lower_bound(3): 4 upper_bound(3): 4 equal_range(3): 4 4 lower_bound(5): 5 upper_bound(5): 6 equal_range(5): 5 6