http://technotip.com/7016/c-program-to-convert-octal-number-to-decimal-number-using-while-loop/

Lets write a C program to convert a number from Octal number system(base 8) to Decimal number system(base 10), using while loop.

Expected Output for the Input
User Input:
Enter an Octal Number
24

Output:
Decimal Equivalent of 24 is 20.

If user enters num = 24.

( pow(8, 1)  x 2 )  + ( pow(8, 0) x 4)
= (8 x 2) + (1 x 4)
= 16 + 4
= 20
So Decimal equivalent of Octal number 24 is 20.

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