Oop - Transperencies Ch 03

Chapter 03 Constructors and Destructors

Operator Overloading

return-type classname :: operator(op-arglist) { //function body }

We can’t overload these operators: 1.

Class member selection (. and .*)

2.

Scope resolution operator (::)

3.

Size of operator (sizeof)

4.

Conditional operator( : ? )

Object Oriented Programming (SYIF) 2008-2009 by Kute T. B.

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Chapter 03 Constructors and Destructors

Process of defining overloaded operators: 1.

Create a class that defines the data type that is to be used in the overloading operation.

2.

Declare the operator function in the public part of the class. It may be either a member function or a friend function.

3.

Define the operator function to implement the required operations.

Object Oriented Programming (SYIF) 2008-2009 by Kute T. B.

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Chapter 03 Constructors and Destructors

#include class Space { int x,y; public: void get(int a, int b) { x = a; y = b; } void show() { cout<<"\n X = "<<x; cout<<"\n Y = "<
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Chapter 03 Constructors and Destructors

#include class Index { int val; public: Index(){} Index(int z) { val = z; } void show() { cout<<"\n val = "<
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Chapter 03 Constructors and Destructors

class Overload { int n1,n2,n3; public: Overload(){} Overload(int a,int b,int c) { n1 = a; n2 = b; n3 = c; } void show() { cout<<"\n n1 = "<
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Chapter 03 Constructors and Destructors

class Complex { float x,y,z; public: Complex( ) { } Complex(float a, float b, float c) { x=a; y=b; z=c; } void display(char *s) { cout<<"\n"<<s; cout<<"\n X:"<<x; cout<<"\n Y:"<
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Chapter 03 Constructors and Destructors

class Vector { int a[10]; public: Vector(){ } void inPut() { cout<<"Enter 10 values : "; for(int i=0;i<10;i++) cin>>a[i]; } void outPut() { cout<<"\nResultant array : "; for(int i=0;i<10;i++) cout<<"\n"<
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