Question

How to convert octal number to decimal number in C

Answer 1

#include <stdio.h> 
#include <math.h> 
  
int OctalToDecimal(int octal);
 
int main(void)
{
    int octal = 753;
     
    printf("Decimal = %d\n", OctalToDecimal(octal));
 
    return 0;
}
 
int OctalToDecimal(int octal)
{
    int decimal = 0, i = 0, remainder;
 
    while (octal != 0)
    {
        remainder = octal % 10;
        octal /= 10;
        decimal += remainder * pow(8, i);
        i++;
    }
    return decimal;
}
 
 
/*
run:
 
Decimal = 491
 
*/

 

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