cpp/CPrimerPlus6E/Ch05/shoes1.c

/* shoes1.c -- converts a shoe size to inches */
#include <stdio.h>
#define ADJUST 7.31              // one kind of symbolic constant
int main(void)
{
    const double SCALE = 0.333;  // another kind of symbolic constant
    double shoe, foot;
    
    shoe = 9.0;
    foot = SCALE * shoe + ADJUST;
    printf("Shoe size (men's)    foot length\n");
    printf("%10.1f %15.2f inches\n", shoe, foot);
    
    return 0;
}