This is simple addition reader/parser for 2 doubles

This is simple addition reader/parser for 2 doubles

#include 

/* function to read expression */
void
readex (double *op1, double *op2)
{
 char plus;
 /* no & required in scanf because &*op1 is the same thing as op1  */
 scanf ("%lf %c %lf", op1, &plus, op2);
}



int
main(void)
{

 double a, b, c;
 printf ("Enter an addition expression (eg: 4.5+3.5): ");
        /* the addresses of the two operands are sent to the function  */
 readex (&a, &b);
 c = a + b;
 printf("%lf + %lf is %lf.\n",a,b,c);
 
 return(0);
}