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C++ Program to Convert Decimal Number to Octal using functions

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robaa
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2022-11-26
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Write a C++ Program to Convert Decimal Number to Octal using functions. Here’s simple Program to Convert Decimal Number to Octal using functions in C++ Programming Language.

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robaa
2022-11-26
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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 Convert Decimal Number to Octal using functions which is successfully compiled and run on Windows System to produce desired output as shown below :

 

SOURCE CODE : :

/*  C++ Program to Convert Decimal Number to Octal using functions  */

#include <iostream>
#include <cmath>
using namespace std;

int decimalToOctal(int decimalNumber);

int main()
{
   int decimalNumber;
   cout << "\nEnter any decimal number :: ";
   cin >> decimalNumber;

   cout <<"\n [ " << decimalNumber << " ] in decimal = [ " << decimalToOctal(decimalNumber) << " ] in octal\n";

   return 0;
}

// Function to convert decimal number to octal
int decimalToOctal(int decimalNumber)
{
    int rem, i = 1, octalNumber = 0;
    while (decimalNumber != 0)
    {
        rem = decimalNumber % 8;
        decimalNumber /= 8;
        octalNumber += rem * i;
        i *= 10;
    }
    return octalNumber;
}

OUTPUT : :

/*  C++ Program to Convert Decimal Number to Octal using functions  */

Enter any decimal number :: 100

 [ 100 ] in decimal = [ 144 ] in octal

Process returned 0

Above is the source code for C++ Program to Convert Decimal Number to Octal using functions which is successfully compiled and run on Windows System.The Output of the program is shown above .

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