#include <stdio.h>

#define USD_CAN  1.00134     

float usd2can( );

float usd; /* What's this? */

int main ()
{

   printf("Enter a USD amount : ");
   scanf("%f",&usd); 
   printf("You entered: %.2f\n",usd);

   float can = usd2can(usd);
   printf("%.2f USD = %.2f CAN \n", usd, can); 

   int usd_int; 
   printf("\nEnter a USD amount (no cents) : ");
   scanf("%d",&usd_int);
   printf("You entered: %d\n",usd_int);
   can = usd2can(usd);
   printf("%d USD = %.2f CAN \n", usd_int, can); 

   return 0;
}


float usd2can( )
{
   return USD_CAN * usd;
};