Checking for whether compiler supports C99 or C++0x

I think I've seen

#ifdef __C99__

before, but is there something similar for C++0x?

Thanks.

er ci wrote:
> I think I've seen
>
> #ifdef __C99__
>
> before, but is there something similar for C++0x?
>
> Thanks.

You the symbol __cplusplus which is defined to be 199711L for
compilers following the 1998 standard, supposedly approved in november
1997.

This symbol will get a new value for C++0x. We just don't know yet
what date it will be - perhaps 201111L ?


Bo Persson

On 24 juuli, 19:31, er ci <er.ci.2...@gmail.com> wrote:
> I think I've seen
>
> #ifdef __C99__
>
> before, but is there something similar for C++0x?

No compiler supports fully next standard. If you want to write
portable code then avoid all that C++0x for 3-4 years *after* (if it
ever) becomes standard. You will have lot of portability-related fun
without it, that is guaranteed.

Bo Persson <bop@gmb.dk> wrote:
> You the symbol __cplusplus which is defined to be 199711L for
> compilers following the 1998 standard, supposedly approved in november
> 1997.
>
> This symbol will get a new value for C++0x. We just don't know yet
> what date it will be - perhaps 201111L ?

You could always do an #if (__cplusplus > 199711)