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The Repeat..until statement

The repeat statement is used to execute a statement until a certain condition is reached. The statement will be executed at least once. The prototype syntax of the Repeat..until statement is

_________________________________________________________________________________________________________ Repeat statement
-- repeat statement-repeat--|statement --until -expression--------------- ----;------
___________________________________________________________________

This will execute the statements between repeat and until up to the moment when Expression evaluates to True. Since the expression is evaluated after the execution of the statements, they are executed at least once. Be aware of the fact that the boolean expression Expression will be short-cut evaluated. (Meaning that the evaluation will be stopped at the point where the outcome is known with certainty) The following are valid repeat statements 

 repeat
   WriteLn ('I =',i);
   I := I+2;
 until I>100;
 repeat
  X := X/2
 until x<10e-3
The Break (461) and Continue (475) reserved words can be used to jump to the end or just after the end of the repeat .. until statement.

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