How does one get a listing of compiler predefines?

I wish all compilers had a command-line switch you could throw to dump a listing.  I'll bet I've spent 6 hours over the last 45 days just looking for predefines for various compilers.  I think I saw them for dmc in some Digital Mars documentation somewhere, but I can't remember where...

Ah Hah!  I just found it at http://www.digitalmars.com/ctg/predefined.html

Well, I *STILL* wish *ALL* compilers (including dmc) would report their pre-defines in response to a command-line switch (if it were possible; I suppose it'd have to read all the #pragma's before it would know exactly which ones would be #defined -- i guess).

David

David Qualls wrote:
> Well, I *STILL* wish *ALL* compilers (including dmc) would report
> their pre-defines in response to a command-line switch (if it were
> possible; I suppose it'd have to read all the #pragma's before it
> would know exactly which ones would be #defined -- i guess).

It's a good idea.