How to use # inside a macro definition

[Eljay Love-Jensen]

Hi Kapil,

You cannot embed preprocessor directives in a macro expansion.  They neither get evaluated at the time of macro definition, nor at the time of instantiation.

Perhaps that's unfortunate.  But that's the way it is.

You'll have to figure out an alternative implementation, such as the one from gertom.

Or you could write your own pre-preprocessor.  If you do opt for this solution, I recommend using Perl as the engine or use lex (i.e., GNU flex).  Instead of writing a parser from scratch -- unless your in it for the sheer fun of tokenizing C/C++.  :-)

HTH,
--Eljay