In this post, we will learn how to convert decimal to octal using C Programming language.
This program takes a decimal number as an input and converts it into an octal number using a user defined function.
So, without further ado, let’s begin this tutorial.
C Program To Convert Decimal To Octal
// C Program To Convert Decimal To Octal
#include <stdio.h>
#include <math.h>
int decimaltoOctal(int num){
int octal = 0, temp = 1;
while (num != 0){
octal = octal + (num % 8) * temp;
num = num / 8;
temp = temp * 10;
}
return octal;
}
int main(){
int num;
// Asking for Input
printf("Enter a decimal number: ");
scanf("%d", &num);
printf("Equivalent Octal Number is: %d", decimaltoOctal(num));
return 0;
}
Output
Enter a decimal number: 568
Equivalent Octal Number is: 1070
How Does This Program Work ?
int num;
In this program, we have declared an int data type variable named as num.
// Asking for Input
printf("Enter a decimal number: ");
scanf("%d", &num);
Then, the user is asked to enter a number. The value of this number will get stored in the num named variable.
printf("Equivalent Octal Number is: %d", decimaltoOctal(num));
Now, we call the custom function named decimaltoOctal which returns the octal number.
int decimaltoOctal(int num){
int octal = 0, temp = 1;
while (num != 0){
octal = octal + (num % 8) * temp;
num = num / 8;
temp = temp * 10;
}
return octal;
}
We have defined a custom function named decimaltoOctal which converts and returns decimal numbers into octal numbers.
Conclusion
I hope after going through this post, you understand how to convert decimal to octal using C Programming language.
If you have any doubt regarding the program, feel free to contact us in the comment section. We will be delighted to help you.
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