#ifdef

Preprocessor conditional directive

Syntax
   #ifdef symbol
      ' Conditionally included statements
   #endif

Description
   Conditionally includes statements at compile time.

   Statements within the #ifdef...#endif block are included if symbol is 
   defined and excluded (ignored) if symbol is not defined.

   #ifdef symbol is equivalent to #if defined (symbol)

Example
   #define _DEBUG
   #ifdef _DEBUG
      ' Special statements for debugging
   #endif

Differences from QB
   * New to Freebasic

See also
   * #define
   * #macro
   * #if
   * #else 
   * #elseif 
   * #endif 
   * #ifndef
   * #undef
   * defined

