#elseifndef
Preprocessor conditional directive
#ifdef A
#elseifndef can be added to an #if block to provide an additional condition.
#elseifndef symbol is equivalent to #elseif Not defined(symbol)
Syntax
#ifdef A
' Conditionally included statements if A is defined
#elseifndef B' Conditionally included statements if both A and B are not defined
#else' Conditionally included statements if A is not defined and B is defined
#endifDescription
#elseifndef can be added to an #if block to provide an additional condition.
#elseifndef symbol is equivalent to #elseif Not defined(symbol)
Example
#ifdef A
Print "A is defined"
#elseifndef B
Print "both A and B are not defined"
#else
Print "A is not defined and B is defined"
#endif
Print "A is defined"
#elseifndef B
Print "both A and B are not defined"
#else
Print "A is not defined and B is defined"
#endif
Version
- Since fbc 1.20.0
Differences from QB
- New to Freebasic
See also