#IFNDEF
Syntax
#IFNDEF substitution_variableDescription
Indicates that the following commands are to be compiled when the substitution variable has not been declared by an ASK or #DEFINE command, or by the -DEBUG flag on the SQR command line. (#IFNDEF is a compiler directive.)
Parameters
| Parameter | Description |
|---|---|
|
substitution_variable |
The variable to be used as the substitution variable. |
See The #IF command for a description
of each compiler directive