[Solved]Where does Qt define the __VA_ARGS__ macro ?

[stuartx]

Hi, I want to define a variadic macro like:
@#define LOG(fmt, ...) printf(fmt, ##VA_ARGS)@

Both "##" and "VA_ARGS"can not pass the compiler. Does Qt support the variadic macro? If so, which header I should include?

Thanks,

Stuart

[tobias.hunger]

Your compiler needs to support variadic macros. Qt can not make them work for you.

[stuartx]

Tobias, you are right. The compiler, i.e. gcc, comes with the platform, not with the Qt. Thank you very much.

I am using Mac OS X. I tried <stdio.h> and <stdarg.h>, no luck yet. Any one can tell me which header defines this "VA_ARGS" macro?

Thanks,

Stuart

[stuartx]

It turns out that I mistakenly try to use this "VA_ARGS" in a function directly.
I examined that both of the following format work in Qt program:
@#define LOG(fmt, ...) dbg_func(fmt, ##VA_ARGS)
#define LOG(fmt, args...) dbg_func(fmt, ##args)@

Sorry for the annoying.