/* Chapter 4 - Program 5 - COMPARES.C */
int main()   /* This file will illustrate logical compares         */
{
int   x = 11, y = 11, z = 11;
char  a = 40, b = 40, c = 40;
float r = 12.987, s = 12.987, t = 12.987;

                         /* First group of compare statements    */

   if (x == y) z = -13;   /* This will set z = -13               */
   if (x > z)  a = 'A';   /* This will set a = 65                */
   if (!(x > z)) a = 'B'; /* This will change nothing            */
   if (b <= c) r = 0.0;   /* This will set r = 0.0               */
   if (r != s) t = c/2;   /* This will set t = 20                */

                         /* Second group of compare statements   */

   if (x = (r != s)) z = 1000; /* This will set x = some positive
                                  number and z = 1000            */
   if (x = y) z = 222;   /* This sets x = y, and z = 222         */
   if (x != 0) z = 333;  /* This sets z = 333                    */
   if (x) z = 444;       /* This sets z = 444                    */

                         /* Third group of compare statements    */

   x = y = z = 77;
   if ((x == y) && (x == 77)) z = 33; /* This sets z = 33        */
   if ((x > y) || (z > 12))   z = 22; /* This sets z = 22        */
   if (x && y && z) z = 11;           /* This sets z = 11        */
   if ((x = 1) && (y = 2) && (z = 3)) r = 12.00; /* This sets
                             x = 1, y = 2, z = 3, r = 12.00      */
   if ((x == 2) && (y = 3) && (z = 4)) r = 14.56; /* This doesn't
                             change anything                     */

                         /* Fourth group of compares             */

   if (x == x); z = 27.345;  /* z always gets changed            */
   if (x != x)  z = 27.345;  /* Nothing gets changed             */
   if (x = 0)   z = 27.345;  /* This sets x = 0, z is unchanged  */

   return 0;
}



/* Result of execution

(No output from this program.)

*/