UNTIL - QB64Official/qb64 GitHub Wiki

The UNTIL condition is used in DO...LOOP exit verifications.

Syntax

DO [UNTIL] evaluation . . . LOOP UNTIL evaluation

  • Only one conditional evaluation can be made at the start or the end of a DO...LOOP.
  • DO UNTIL evaluates a condition before and inside of the loop. The loop may not run at all.
  • LOOP UNTIL evaluates a condition inside of the loop. It has to loop once.
  • Skips the loop or loops until an evaluation becomes True.

Relational Operators:

Symbol Condition Example Usage
= Equal IF a = b THEN
<> NOT equal IF a <> b THEN
< Less than IF a < b THEN
> Greater than IF a > b THEN
<= Less than or equal IF a <= b THEN
>= Greater than or equal IF a >= b THEN

See Also