Binary operator overloading
- 1. G.BALAJI MCA, M.Tech., Assistant Professor of Computer Science Vivekananda College, Madurai
- 2. Operator Overloading: Operator – It is a symbol that indicates an operation. Arithmetic operators are + (add two numbers), - (subtract two numbers), * ( Multiply two numbers), / ( Divide between two numbers). At now, we will take an Addition ‘+’ Sign, its use of ‘+’ sign is 5+5=10 2.5+2.5=5
- 3. Operator Overloading means multiple functions or multiple jobs. In operator overloading the ‘+’ sign use of add the two objects. One of C++’s great features is its extensibility, Operator Overloading is major functionality related to extensibility. In C++, most of operators can be overloaded so that they can perform special operations relative to the classes you create.
- 4. For Example, ‘+’ operator can be overloaded to perform an operation of string concatenation along with its pre-defined job of adding two numeric values. When an operator is overloaded, none of its original meaning will be lost. After overloading the appropriate operators, you can use C++’s built in data types.
- 5. Unary Operator - Operators attached to a single operand. (-a, +a, --a, ++a, a--, a++) Binary Operator - Operators attached to two operand. (a-b, a+b, a*b, a/b, a%b, a>b, a<b )
- 6. return-type class-name:: operator op(arg-list) { function body } EXPLANATION return type – It is the type of value returned by the specified operation. op - It is the operator being overloaded. It may be unary or binary operator. It is preceded by the keyword operator. operator op - It is the function name, Where operator is a keyword.
- 7. INTRODUCTION In Binary operator overloading function, there should be one argument to be passed. It is overloading of an operator operating on two operands.
- 8. #include<iostream> class multiply { int first,second; public: void getdata(int a,int b) { first=a; second=b; } Contd...,
- 9. void display() { cout<<“first=“<<first<<“second=“<<secon<<endl; } multiply operator *(multiply c); }; void multiply::operator *(multiply c) { multiply temp; temp.first=first*c.first; temp.second=second*c.second; return temp; } Contd..,