There is a safety mechanism to prevent report processing from hanging due to an infinite loop. Any one evaluation of a formula can have at most 30,000 loop condition evaluations per formula evaluation. This will be explained by the example below.
Local NumberVar i := 1; While i <= 100000 Do ( If i > {movie.STARS} Then Exit While; i := i + 1 ); 20
If {movie.STARS} is greater than 30,000 then the loop condition (i <= 100000) will be evaluated more than the maximum number of times and an error message is displayed. Otherwise the loop is OK.
Note: The safety mechanism applies on a per formula base, not for each individual loop. For example:
Local NumberVar i := 1; For i := 1 To 10000 Do ( Sin (i); ); While i <= 25000 Do ( i := i + 1; )
The above formula also triggers the safety mechanism since the 30,000 refers to the total number of loop condition evaluations in the formula and this formula will have 10001 + 25001 such evaluations.
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