- Name:
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#ifndef
- Syntax:
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#IFNDEF label #ENDIF
#IFNDEF label #ELSE #ENDIF
- Description:
-
Conditionally compile code depending on whether a label is not defined (#ifndef) or is defined (#ifdef).
- Applies To:
-
All
- See Also:
-
- Related Create:
-
- Share:
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- Print:
-
Title
Description
- Code Example:
-
#define clock8
#ifdef clock8
let b1 = 8
#else
let b1 = 4
#endif
#undefine clock8
#ifndef clock8
let b2 = 4
#else
let b2 = 8
#endif
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