Re: [Tinycc-devel] Preprocessor bug prevents macro expansion

[grischka]

Alexandre Becoulet wrote:
> Hi list,
>
> Tcc fails to compile some code due to what seems like a preprocessor bug. Here 
> is a test case:
>
> #define CONCAT(a, b, c) a##b##c
> #define FOO(a, b, c) CONCAT(a, b, c)
> CONCAT(F, O, O)(X, Y, Z)
>
> This should expand to XYZ (tryed with gcc, clang, intel and sun) but tcc 
> preprocessor expands to CONCAT(X, Y, Z).
>
> The expansion is performed properly when commenting out some nested macro 
> check code in the preprocessor.

Yes, there are bugs.  Here is another one:

 #define v s.v
 #define S(x) x
 S(v)

Should expand to s.v but does to s.s.v

--- grischka