Re: How to distinguish MYDEF and MYDEF() with #ifdef

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Or why not

#define _OLD_MYDEF MYDEF
#undef MYDEF

#define MYDEF //<-- yours

//use it


#undef MYDEF

#define MYDEF _OLD_MYDEF

which is untested and a bit ridiculous but should work.  If you don't
need MYDEF anymore in this particular file then you can leave off the
bottom section.

wes



On 7/24/07, John Love-Jensen <eljay@xxxxxxxxx> wrote:
Hi Frank,

I do not believe there is a discriminator predicate between MYDEF and
MYDEF() preprocessor directives for the #if.

I suggest you rely on another preprocessor symbol from the relevant header
files to use as a discriminator between MYDEF and MYDEF().

Alternatively, change the MYDEF() to MYDEF_FN().  Or if you are a radical
(like myself) use $MYDEF and MYDEF$() and the -fdollars-in-identifiers GCC
flag.

HTH,
--Eljay



[Index of Archives]     [Linux C Programming]     [Linux Kernel]     [eCos]     [Fedora Development]     [Fedora Announce]     [Autoconf]     [The DWARVES Debugging Tools]     [Yosemite Campsites]     [Yosemite News]     [Linux GCC]

  Powered by Linux