Difference between Operator overloading and Functional
overloading?

Answer Posted / swetcha

Function overloading is like you have different functions
with the same name but different signatures working
differently. So, the compiler can differentiate and find
out which function to call depending on the context. In
case of operator overloading, you try to create your own
functions which are called when the corresponding operator
is invoked for the operands.

One important thing to understand is that you can create as
many functions as you want with the same name and sifferent
signatures so that they can work diffrently but for a
particular class, you cannot overload the operator function
based on number of arguments. There is a fundamental reason
behind this.

According to the rules, you can not create your own
operators but you have to use already available operators.
Another thing is since the operator are already defined for
use with buily-in types you can not change their
charecteristics. For example the binary operator '+' always
takes two parameters, so for this you cannot create a
function that takes three parameters. But you can always
overload them based on the type of the parameters.

Is This Answer Correct ?    115 Yes 14 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Why main function is special in c++?

675


Can you be able to identify between straight- through and cross- over cable wiring? And in what case do you use straight- through and cross-over?

627


What is else if syntax?

690


How much maximum can you allocate in a single call to malloc()?

647


What is size of string in c++?

570






Is sorted c++?

586


Give 10 points of differences between C & C++.

637


What do you know about near, far and huge pointer?

609


Assume studentNames and studentIDs are two parallel arrays of size N that hold student data. Write a pseudocode algorithm that sorts studentIDs array in ascending ID number order such that the two arrays remain parallel.

1723


What is the exit function in c++?

549


What are literals in C++?

608


Can static member variables be private?

642


Why do we use constructor?

614


Is ca high or low level language?

596


Differentiate between late binding and early binding. What are the advantages of early binding?

592