Check whether a value is positive or negative infinity.
Source position: syshelph.inc line 755
public class function TDoubleHelper.IsInfinity( |
const AValue: Double |
):Boolean; overload; |
IsInfinity checks whether a Double-sized floating point value represents a positive or negative infinity. If so, it returns True. When the class function version is used, the value can be specified using AValue. In the method version, the used value is (Self).
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Check whether a value equals NaN. |
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Check whether a value is positive infinity. |
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Check whether a value is negative infinity. |