HP 3000 Manuals

HP C/iX Reference Manual

Jump Statements 

Jump statements cause the unconditional transfer of control to another
place in the executing program.

Syntax 

     jump-statement ::=
         goto identifier;
         continue;
         break;
         return [expression];

Examples 

These four fragments all accomplish the same thing (they print out the
multiples of 5 between 1 and 100):

        i = 0;
        while (i < 100)
        {
           if (++i % 5)
              continue;   /* unconditional jump to top of while loop */
           printf ("%2d ", i);
        }
        printf ("\n");

        i = 0;
     L: while (i < 100)
        {
           if (++i % 5)
              goto L:     /* unconditional jump to top of while loop */
           printf ("%2d ", i);
        }
        printf ("\n");

        i = 0;
        while (1)
        {
           if ((++i % 5) == 0)
              printf ("%2d ", i);
           if (i > 100)
              break;      /* unconditional jump past the while loop  */
        }
        printf ("\n");

        i = 0;
        while (1)
        {
           if ((++i % 5) == 0)
              printf ("%2d ", i);
           if (i > 100) {
              printf ("\n");
              return;     /* unconditional jump to calling function  */
           }
        }

MPE/iX 5.0 Documentation