The Boolean operator Is Equal or Less compares two operands and returns TRUE (-1) if the first value is equal to or less than the second value, or returns FALSE (0), otherwise. Is Equal or Less can be used in both variable and constant expressions. Example:
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X := Y =< Z |
The above example compares the value of Y with the value of Z and sets X to either: TRUE (-1) if Y is equal to or less than the value of Z, or FALSE (0) if Y is greater than the value of Z.
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