operator overloading in C++
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Operator overloading allows the same operator to behave differently depending on the operands. It allows performing different operations on the same operands, making code more readable and allowing easy access to objects to perform operations. An example demonstrates overloading the decrement operator (--) in a class to decrement an integer count and displaying the result. Function overloading uses a single function name to perform different tasks based on parameters. An example overloads the area function to calculate the area of a circle, square, and rectangle depending on parameters passed.
![Operator overloading
The process of making an
operator to exhibit
different behaviours in
different instances is
known as operator
overloading.
Syntax:-
operator([parameters]) { Statements }
operator([parameters])
{
Statements
}](https://image.slidesharecdn.com/functionoverloading-140823010921-phpapp02/85/operator-overloading-in-C-6-320.jpg)
operator overloading in C++
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- 4. WHAT IS OPERATOR??? An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations. Some operators are…. • Arithmetical operators • Logical operators • Relational operators
- 5. OVERLOADING More than one definition for a function name or an operator in the same scope, which is called overloading. • Function overloading • Operator overloading
- 6. Operator overloading The process of making an operator to exhibit different behaviours in different instances is known as operator overloading. Syntax:- operator([parameters]) { Statements } operator([parameters]) { Statements }
- 7. Benefits….. • Perform different operations on the same operands. • It makes code much more readable. • Easily access the objects to perform any operations .
- 8. Example #include <iostream> using namespace std; class temp { private: int count; public: temp() { count=25; } void operator --() { count--; } void Display() { cout<<"Count: "<<count; } }; main() { temp t; --t; t.Display(); } OUTPUT Count:24
- 9. Function overloading Using a single function name to perform different types of tasks is known as function overloading.
- 10. Example: #include<iostream> using namespace std; class shape { public: float area(double a) { float circle_area; circle_area=3.14*(a*a); return circle_area; } int area(int a) { int squire_area; squire_area=a*a; return squire_area; } int area(int a,int b) { int rectangle_area; rectangle_area=a*b; return rectangle_area; } }; main() { double circlee; int squiree,rectanglee; shape object; cout<<"Area of Circle:"; circlee=object.area(5.00); cout<<circlee; cout<<"nArea of squire:"; squiree=object.area(4); cout<<squiree; cout<<"nArea of rectangle:"; rectanglee=object.area(5,6); cout<<rectanglee; } Output: Area of Circle:78.5 Area of squire:16 Area of rectangle:30
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