IsBoolean
Rezultato = IsBoolean ( vEsprimo ) AS Boolean
Rezultato = Boolean? ( vEsprimo ) AS Boolean
Redonas
TRUEn se
vEsprimo estas
Boolean.
Examples
PRINT IsBoolean(FALSE), IsBoolean((1 > 0) AND (2 > 1)), IsBoolean(IsBoolean("no matter what"))
PRINT IsBoolean(-1), IsBoolean(NULL)
See also