gcc command line from inside c source

[John Love-Jensen]

Hi massimiliano,

> where can I find a list of these predefined macros, to find out if
> there are others that can be useful for me?

You can see which predefined macros are "live" by doing this:

echo '' | g++ -E -dM -x c++ - | sort

I'm not sure where you can find an exhaustive list of all possible
predefined macros, and which flags control them.

HTH,
--Eljay