What operators can or cannot be overloaded?, C/C++ Programming

Assignment Help:

A: Mostly can be overloaded. The only C operators which can't be are. and?: (and sizeof, that is technically an operator). C++ adds a few of its own operators, mostly which can be overloaded except :: and .*.

Here's an instance of the subscript operator (it returns a reference). Primary without operator overloading:

class Array {

public:

int& elem(unsigned i) { if (i > 99) error(); return data[i]; }

private:

int data[100];

};

int main()

{

Array a; a.elem(10) = 42; a.elem(12) += a.elem(13);

...

}

Now the similar logic is presented along with operator overloading:

class Array {

public:

int& operator[] (unsigned i) { if (i > 99) error(); return data[i]; }

private:

int data[100];

};

int main()

{

Array a; a[10] = 42; a[12] += a[13];

...

}

Related Discussions:- What operators can or cannot be overloaded?

Decode the code, Smugglers are becoming very smart day by day. Now they hav...

Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send

Area under curve, progarm in c for area under curve #include ...

progarm in c for area under curve #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; int numtraps;

I need p2p video streaming, Project Description: P2P media streaming bro...

Project Description: P2P media streaming browser (IE, Chrome, Firefox) plug-in needed that is compatible with Win Xp,7,8 that is Windows Firewall friendly Example like Swarm

C program to demonstrate pointer to string, C program to demonstrate Pointe...

C program to demonstrate Pointer to string: void main() { int a; char str[]="hello how are you?",*ptr_str; ptr_str=&

Program to calculate pie, This problem familiarizes you with using random n...

This problem familiarizes you with using random numbers in C++. The program is to compute a good approximation of p using a simulation method called "Monte Carlo". The following fi

Explain brief about class and objects, Question 1 Write a program that acc...

Question 1 Write a program that accepts a 3x3 matrix from the user and finds the transpose of it Question 2 Explain Brief about class and objects. Also describe friend functi

Check whether the string entered is a palindrome or not, Program is to chec...

Program is to check whether the string entered is a palindrome or not: Program is to check whether the string entered is a palindrome or not invoke function from main int p

gaming project

Do friends break encapsulation?, A: No. If they're utilized properly, they ...

A: No. If they're utilized properly, they increase encapsulation. You frequently require splitting a class in half while the two halves will have distinct numbers of instances o

Menus, create a shopping cart in c++

create a shopping cart in c++

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages