IB Statements/break

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BREAK statement

Syntax: BREAK

Discussion: The BREAK statement stops execution of the conditional statement block within a FOR/NEXT structure, a DO/LOOP structure, or a SELECT/CASE structure. The BREAK statement passes control to the statement following the final statement in the structure (the NEXT statement, LOOP statement, or ENDSELECT statement, respectively).

The BREAK statement must occur between a FOR and NEXT statement, between a DO and LOOP statement, or within a CASE block.

If a BREAK statement occurs within an IF/THEN or IF/THEN/ELSE structure, the IF structure must itself be within a FOR/NEXT loop, DO/LOOP structure, or CASE block, and the BREAK statement refers to the FOR, DO, or CASE structure, accordingly.

There can be multiple BREAK statements within a given FOR/NEXT or DO/LOOP structure.

Example 1:

 FOR I=1 TO 10        ! Start the loop
 .
 IF A=I THEN BREAK    ! If A=I jump to end of loop 
 . 
 NEXT I               ! Increment I and loop back
!
 HERE:                ! The BREAK statement jumps to this label

Example 2:

 DO WHILE I LE 10     ! Start the loop
.
 IF A=I [THEN] BREAK  ! If A=I jump to end of loop
 .
LOOP                 ! Loop back
 !
 HERE:                ! The BREAK statement jumps to this label