C program to convert decimal to Octal; Through this tutorial, we will learn how to convert decimal numbers to octal numbers in c program using for loop, while loop and function.
Programs to Convert Decimal to Octal Number in C
Use the following programs to convert decimal numbers to octal numbers in c program using for loop, while loop and function in c:
- C Program to Convert Decimal to Octal Number using While Loop
- C Program to Convert Decimal to Octal Number using For Loop
- C Program to Convert Decimal to Octal Number using Function
C Program to Convert Decimal to Octal Number using While Loop
/* C Program to Convert Decimal to Octal Number */
#include <stdio.h>
int main()
{
int octalNumber[10], number, i, j;
printf("\n Please Enter Decimal Number : ");
scanf("%d", &number);
while(number != 0)
{
octalNumber[i++] = number % 8;
number = number / 8;
}
printf("\n Equivalent Octal Number of a Given Number = ");
for(j = i - 1; j > 0; j--)
{
printf("%d", octalNumber[j]);
}
return 0;
}
The output of the above c program; as follows:
Please Enter Decimal Number : 110110 Equivalent Octal Number of a Given Number = 327036
C Program to Convert Decimal to Octal Number using For Loop
/* C Program to Convert Decimal to Octal Number */
#include <stdio.h>
int main()
{
int octalNumber[10], number, i, j;
printf("\n Please Enter Decimal Number : ");
scanf("%d", &number);
for(i = 0; number > 0; i++)
{
octalNumber[i] = number % 8;
number = number / 8;
}
printf("\n Equivalent Octal Number of a Given Number = ");
for(j = i - 1; j >= 0; j--)
{
printf("%d", octalNumber[j]);
}
return 0;
}
The output of the above c program; as follows:
Please Enter Decimal Number : 1420 Equivalent Octal Number of a Given Number = 2614
C Program to Convert Decimal to Octal Number using Function
/* C Program to Convert Decimal to Octal Number */
#include <stdio.h>
long Decimal_to_Octal(int number)
{
long octalNumber = 0, i = 1;
int remainder;
while(number != 0)
{
remainder = number % 8;
number = number / 8;
octalNumber = octalNumber + (remainder * i);
i = i * 10;
}
return octalNumber;
}
int main()
{
int number;
printf("\n Please Enter Decimal Number : ");
scanf("%d", &number);
long oct = Decimal_to_Octal(number);
printf("\n Equivalent Octal Number of %d = %ld", number, oct);
return 0;
}
The output of the above c program; as follows:
Please Enter the Number You want to Convert : 22 Equivalent Octal Number of 22 = 26
