NullMagnitudeRule variable
Variable describing what to do when checking for order of
Null values.
Declaration
NullMagnitudeRule: TNullCompareRule = ncrLooseDescription
NullEqualityRule is checked when the system needs to determine the ordering of variants with
Null values (operations like
opCmpGe,
opCmpLe).
Check
TNullCompareRule for a list of allowed values. The default is
ncrLoose.
For determining equality (opCmpEq, opCmpNe) of Null values, see NullEqualityRule.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.