Re: [Qemu-devel] [PATCH 2/6] snapshot: add error set function

[Wenchao Xia]

于 2012-12-21 5:36, Eric Blake 写道:
> On 12/16/2012 11:25 PM, Wenchao Xia wrote:
> >    Added two function which will try replace the error if it is
> > already set, so only last error is reported.
>
> > +#define error_setg_replace(err, fmt, ...) do {                     \
> > +    if (*err != NULL) { \
> > +        error_free(*err); \
> > +     } \
> > +    error_set(err, ERROR_CLASS_GENERIC_ERROR, fmt, ## __VA_ARGS__); \
> > +} while (/*CONSTCOND*/0)
>
> qemu-queue.h is the only other file in qemu.git that uses /*CONSTCOND*/
> notation, and that's because of the file origins; do we really need it here?
 OK, /*CONSTCOND*/ will be removed.

--
Best Regards

Wenchao Xia