C++ Program to Swap two numbers using call by value

By | December 27, 2016

Swap two numbers using call by value


Write a C++ Program to Swap two numbers using call by value. Here’s simple C++ Program to Swap two numbers using call by value in C++ Programming Language.


What are Functions ?


Function is a block of statements that performs some operations. All C++ programs have at least one function – function called “main()”. This function is entry-point of your program.

A function declaration tells the compiler about a function’s name, return type, and parameters. A function definition provides the actual body of the function.


Defining a Function : :


The general form of a C++ function definition is as follows:

return_type Function_Name( list of parameters )
{
//function’s body
}

  • return_type : suggests what the function will return. It can be void, int, char, some pointer or even a class object.
  • Function_Name : is the name of the function, using the function name it is called.
  • Parameters : are variables to hold values of arguments passed while function is called. A function may or may not contain parameter list.
  • Function body : is he part where the code statements are written.

Below is the source code for C++ Program to Swap two numbers using call by value which is successfully compiled and run on Windows System to produce desired output as shown below :


SOURCE CODE : :



OUTPUT : :



Above is the source code for C++ Program to Swap two numbers using call by value which is successfully compiled and run on Windows System.The Output of the program is shown above .

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