TNullCompareRule enumeration
Enumeration describing how to handle Null values when comparing variants.
Declaration
TNullCompareRule = (ncrError,ncrStrict,ncrLoose)Description
TNullCompareRule is the type for the
NullEqualityRule and
NullMagnitudeRule variables.
It can have the following values:
- ncrError
-
Raise an error when one of the values is Null.
- ncrStrict
-
Act as if the comparison is false.
- ncrLoose
-
Attempt to compare anyway.
Values
ncrError | Raise an error when one of the values is Null. |
ncrStrict | Act as if the comparison is false. |
ncrLoose | Attempt to compare anyway. |
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.