#include <stdio.h>

/* This illustrates the use of the six relational operators, and the
   misuse of the assignment operator. */


void main (void) 
{
  int x = 1;
  int y = -2;
  int z = 0;


  /* Example 1.  Greater than. */

  if (x > 0) {
    printf("Test 1 is true\n");
  }
  else {
    printf("Test 1 is false\n");
  }


  /* Example 2.  Greater than or equal to. */

  if (y*y >= 1) {
    printf("Test 2 is true\n");
  }
  else {
    printf("Test 2 is false\n");
  }


  /* Example 3.  Less than. */

  if (z < x) {
    printf("Test 3 is true\n");
  }
  else {
    printf("Test 3 is false\n");
  }


  /* Example 4.  Less than or equal to. */

  if (z <= 1) {
    printf("Test 4 is true\n");
  }
  else {
    printf("Test 4 is false\n");
  }


  /* Example 5.  Equal to. */

  if (y == -2*x) {
    printf("Test 5 is true\n");
  }
  else {
    printf("Test 5 is false\n");
  }


  /* Example 6.  Not equal to. */

  if (y != z) {
    printf("Test 6 is true\n");
  }
  else {
    printf("Test 6 is false\n");
  }


  /* Example 7.  Misuse of assignment to mean equality. */

  if (z = z) {
    printf("Test 7 is true\n");
  }
  else {
    printf("Test 7 is false\n");
  }


}