Skip to content

    TCompareFunc

    Function used to compare values to determine their relative sort order.

    Declaration

    Source position: bufdataset.pas line 114

    type
  TCompareFunc = function(subValue: pointer; aValue: pointer; 
                        size: Integer; options: TLocateOptions) : Int64;

    Arguments

    Name Description
    subValue Pointer to a compared value.
    aValue Pointer to a compared value.
    size Number of bytes included in the comparison.
    options Locate options to use in the routine.

    Function result

    Relative order for the compared pointer values.

    Description

    TCompareFunc is an Int64 function type used to compare pointers using the specified locate option values. TCompareFunc is used in the implementation of the TDBCompareRec type.

    See also

    Name Description
    TDBCompareRec Implements a structure used to compare values for a group of fields in TBufDataset.