What is the use of const overloading in C++?

Question

In C++, a function\'s signature depends partly on whether or not it\'s const. This means that a class can have two member functions with identical signatures except that on

Answer 1

You might want to use it to decide whether or not to return a const reference to an object or not. The STL's containers use a const overloaded begin() and end() function to decide whether to return a const_iterator or a normal iterator.