Crestron SIMPL+ - SIMPL+ Looping Constructs; Looping Constructs Overview; DO - UNTIL Loop

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Language Reference Guide - DOC. 5797G
Looping Constructs
Looping Constructs Overview
Loops are used to perform a section of code zero or more times in a row in a given
SIMPL+ program. The body of the loop can consist of statements, expressions,
function calls, or other loops.
DO - UNTIL
Name:
DO - UNTIL
Syntax:
DO
[{]
<statements>
[}] UNTIL (<expression>);
Description:
This loop performs a set of <statements> at least one time and will terminate when
<expression> evaluates to true. If only one statement is present in the body of the
loop, then the { and } characters are not required, but may be used. If more than one
statement is present in the loop body, then the { and } characters are mandatory. Note
that <expression> is evaluated each time through the loop.
Example:
INTEGER X;
X=0;
DO
{
X = X + 1;
PRINT(“X = %d\n”, X);
}
UNTIL (X = 25);
In this example, the loop will execute 25 times. The PRINT function will show the
value of X after it is incremented to the computer port of the control system.
Version:
SIMPL+ Version 1.00