Question

Can someone explain these terms to me in C++?

Thanks

1. Templates:
2. Function:
3. Template Instantiation:
4. Overload operators:
5. This pointer:
6. Binary operator:
7. Friend function:
8. Overloading post increment operator:
9. Type:
10. Class Templates:

Answer 1

1. Templates

Templates are used to do generic programming in c++. it supports working with different data types without rewriting the entire code for each data type. there are function templates and class templates. both of them can work on variety of data type with a single code such as int, double,float..........etc.

2. Function

Function is a set of instructions used for special task. for example to add numbers , sort numbers etc. the same function can be used over and over again. the function can be called at any point of the program after declaration. Generally a function has 3 parts.

• Function declaration
• Function definition
• Function call

3. Template instantiation

The process of creating a function or class from a template declaration is known as template instantiation. The template should be instantiated by providing arguments to it. then only compiler can generate function or class.

4. Overload operators

overload operators are special function with a keyword operator followed by the overloading operator.This function can be used to overload operators . operator overloading is a kind of polymorphism. '+' operator can be overloaded to do addition of two numbers. operators can be overloaded by defining a function to it.

Syntax of operator overloading :  

Return type Class name Operator operator symbol (Argument);

5. This pointer

This pointer is used to refer current object of the executing program.

6. Binary operator

Binary operators are the operators which works on two operands. example, + , - , * etc.

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