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ID : 113
#Undef
Function
To cancel the macro definition defined by #Define (set to undefined).
Syntax
#Undef macro name
Guaranteed entry
- Macro name
- Designate the macro name defined by #Define.
Description
The macro definition defined by #Define is canceled (undefined) by programming after #Undef.
For a functional macro, designate only macro name(s) without argument.
Related Terms
Attention
Nothing is performed when a macro name not defined by #Define is stated.
Example
'!TITLE "Symbolic Variable, Macro Definition Disabled"
' Set to disabled after assigning a string to symbolic constant "NAME"
Sub Sample_Undef
' Assign "Desno Corporation" to a symbolic constant called NAME
#Define NAME "Denso Corporation"
' Set symbolic constant NAME to disabled
#Undef NAME
End SubID : 113