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    TSingleHelper.IsNegativeInfinity

    Check whether a value is negative infinity.

    Declaration

    Source position: syshelph.inc line 696

    public 
class function IsNegativeInfinity(const AValue: Single) : Boolean
                                 ;  overload;  static; overload;

function IsNegativeInfinity : Boolean;  overload; overload;

    Description

    IsNegativeInfinity checks whether a single-sized floating point value represents a 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).

    See also

    Name Description
    TSingleHelper.IsNan Check whether a value equals NaN.
    TSingleHelper.IsPositiveInfinity Check whether a value is positive infinity.
    TSingleHelper.IsInfinity Check whether a value is positive or negative infinity.