Make LOCK_PRINT & PROCLOCK_PRINT expand to ((void) 0) when not in use.

tglsfdc · tglsfdc · commit 20803d7881c3 · 2013-11-07T19:07:48.000-05:00
This avoids warnings from more-anal-than-average compilers, and might
prevent hidden syntax problems in the future.

Andres Freund
diff --git a/src/backend/storage/lmgr/lock.c b/src/backend/storage/lmgr/lock.c
@@ -331,8 +331,8 @@ PROCLOCK_PRINT(const char *where, const PROCLOCK *proclockP)
 }
 #else							/* not LOCK_DEBUG */
 
-#define LOCK_PRINT(where, lock, type)
-#define PROCLOCK_PRINT(where, proclockP)
+#define LOCK_PRINT(where, lock, type)  ((void) 0)
+#define PROCLOCK_PRINT(where, proclockP)  ((void) 0)
 #endif   /* not LOCK_DEBUG */
 
 

Original file line number	Diff line number	Diff line change
`@@ -331,8 +331,8 @@ PROCLOCK_PRINT(const char where, const PROCLOCK proclockP)`
`331`	`331`	`}`
`332`	`332`	`#else /* not LOCK_DEBUG */`
`333`	`333`
`334`		`-#define LOCK_PRINT(where, lock, type)`
`335`		`-#define PROCLOCK_PRINT(where, proclockP)`
	`334`	`+#define LOCK_PRINT(where, lock, type) ((void) 0)`
	`335`	`+#define PROCLOCK_PRINT(where, proclockP) ((void) 0)`
`336`	`336`	`#endif /* not LOCK_DEBUG */`
`337`	`337`
`338`	`338`