![]()  | 
![]()  | 
![]()  | 
| $DEFINE | - Defines a conditional symbol | 
| $ELSE | - Compiles or ignores a portion of source text | 
| $ENDIF | - Ends the conditional compilation | 
| $IFDEF | - Compiles source text if Name is defined | 
| $IFNDEF | - Compiles source text if Name is NOT defined | 
| $IFOPT | - Compiles source text if a compiler switch is in a specifies state (+ or -) | 
| $UNDEF | - Undefines a previously defined conditional symbol | 
![]()  | 
![]()  | 
![]()  | 
| Compiler Directives | Table of Content | Switch and Parameter Directives |