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