/*
 * var8.c - Add '#define' to top for program for preprocessor, 
 *          YEAR is a simple macro with a number.
 *          WEIGHT is morecomplex.
 *          This is not a variable declaration, does not allocate memory.
 *          preprocessor instead, looks for all occurences of YEAR, and replaces with the value 1871.
 *          preprocessor instead, looks for all occurences of WEIGHT(xx), and replaces with the equation.
 */
#include <stdio.h>
#define YEAR 1871
#define WEIGHT(xx)  printf(" Now he weighs %d pounds.\n", xx)

int main(void)
{
  char name[]="Orin Braucher";
  int month = 6;
  int day = 23;
  float birthmass = 3.9;
  float birthweight = 8.6;
  char middleinit = 'E';

  printf("He was born on %d/%d/%d.\n", month, day, YEAR);
  printf("At birth he weighted %.2f kg or %.2f pounds.\n", birthmass, birthweight);
  printf("He was given %c for a midle initial.\n", middleinit);
  printf("%s is his name.\n", name);

  WEIGHT(150);
  WEIGHT(88);
  WEIGHT(YEAR);

  return 0;
}