#define DEBUG(x) if ((debug_selector & (x)) != 0)
#define HDEBUG(x) if (host_checking || (debug_selector & (x)) != 0)
+#define PTR_CHK(ptr) \
+do { \
+if ((void *)ptr > (void *)store_get(0)) \
+ debug_printf("BUG: ptr '%s' beyond arena at %s:%d\n", \
+ mac_expanded_string(ptr), __FUNCTION__, __LINE__); \
+} while(0)
+
/* The default From: text for DSNs */
#define DEFAULT_DSN_FROM "Mail Delivery System <Mailer-Daemon@$qualify_domain>"