include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <math.h>

#include <stdint.h>

​

char* toDecimal();

char* toOctal();

char* toHex();

void printResult();

int promtUser();

​

int promtUser()

{

   char userInput[32];

   printf("Please enter a binary number");

   scanf("%s", userInput);

   return (int) strtol(userInput, NULL, 2);

}

​

void printResult(int input){

​

   char* decimal = (char*) malloc (sizeof(char)* (log10(input) +1));

   char* octal = (char*) malloc (sizeof(char)* ((log10(input)/log10(8))+1));

   char* hex = (char*) malloc (sizeof(char)*(log10(input)/log10(16))+1);

   printf("conversion in decimal is: %s",decimal);

   printf("conversion in octal is: %s",octal);

   printf("conversion in hex is: %s",hex);

   free (decimal);

   free (octal);

   free (hex);}

​

char* toDecimal(char* output, int input) {

   sprintf (output, "%d", input);

   return output;

}

char* toHex(char* output, int input){

   sprintf(output, "%x", input);

   return output;

}

char* toOctal(char* output, int input){

   sprintf(output, "%o", input);

   return output;

}

​

int main(int argc, char* something[] argv)

{

   if (argc == 2){

      printResult (int) strtol (something[1], NULL, 2);

   }

   else{

      promtUser();

   }

}