/* example that demonstrates the use of functions */
#include <stdio.h>

void world (void)
{
  printf("\nHello World\n");
}


int main (void)
{
  int j;
  /*example of a for loop */
  for (j=0; j<3; ++j) 
  {
    printf("j= %i",j);
    world();
  }

  /* example of a while loop */
  j = 0;
  while (j<4)
  {
    printf("while do j %i\n",j);
    j = j+1;
  }

  /* example of a do while loop */
  j = 0;
  do 
  {
    printf("do while j %i\n",j);
    j = j+1;
  }
  while (j < 5);
  printf("\nReturned from function\n");
}