Operator ## (Preprocessor Concatenate)

Preprocessor operator to concatenate strings

Syntax
   text##text

Description
   This operator creates a new token by concatenating the texts at both 
   sides of it.  This text can be recognized by other macros and further 
   expanded.  One use, is to create a macro that expands to different macro 
   names, variable names, and function names depending on the arguments 
   received.

   Note:
      In macro/define's use '##_' to escape line continuation character '_' 
      to allow multiple lines of macro expanded code to be combined into a 
      single statement.

Example
   #define Concat(t,n) t##n

   Print concat (12,34)

   Dim Concat (hello,world) As Integer
   Concat (hello,world)=99
   Print helloworld

   Output:

   1234
   99

Version
   * Before fbc 1.08.0, '##_' did not allow to escape line continuation 
     character '_'.

Differences from QB
   * New to FreeBASIC

See also
   * Preprocessor

