X# uses the following NULL literals. They indicate the absense of a value.
Some of these literals require the runtime.
Value |
Description |
Requires Runtime |
NULL |
"Multi purpose" NULL. Can be used for OBJECT type and Pointer types. |
N |
NULL_ARRAY |
Null reference to the xBase ARRAY type |
Y |
NULL_CODEBLOCK |
Null reference to the xBase CODEBLOCK type |
Y |
NULL_DATE |
Empty date (0000-00-00) |
Y |
NULL_OBJECT |
Null reference to an OBJECT value |
N |
NULL_PSZ |
Null PSZ value |
Y |
NULL_PTR |
Null PTR value |
N |
NULL_STRING |
Null reference to a string. When the compiler option /vo2 is used, then this will become the equivalent of String.Empty |
N |
NULL_SYMBOL |
NULL reference to the xBase SYMBOL type |
Y |
.NULL. |
This FoxPro literal null is translated to a NULL reference |
N |
