[lib] Experimental: have XFREE NULL out the freed pointer
2006-06-15 Paul Jakma <paul.jakma@sun.com>
* memory.h: Experimental, have XFREE macro NULL out the freed
pointer.
diff --git a/lib/ChangeLog b/lib/ChangeLog
index b2ec068..b7c9f04 100644
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,6 +1,8 @@
2006-06-15 Paul Jakma <paul.jakma@sun.com>
* command.c: (cmd_describe_command_real) Fix leak, CID #38.
+ * memory.h: Experimental, have XFREE macro NULL out the freed
+ pointer.
2006-05-28 Paul Jakma <paul.jakma@sun.com>
diff --git a/lib/memory.h b/lib/memory.h
index 071f394..a23c278 100644
--- a/lib/memory.h
+++ b/lib/memory.h
@@ -53,7 +53,10 @@
#define XMALLOC(mtype, size) zmalloc ((mtype), (size))
#define XCALLOC(mtype, size) zcalloc ((mtype), (size))
#define XREALLOC(mtype, ptr, size) zrealloc ((mtype), (ptr), (size))
-#define XFREE(mtype, ptr) zfree ((mtype), (ptr))
+#define XFREE(mtype, ptr) do { \
+ zfree ((mtype), (ptr)); \
+ ptr = NULL; } \
+ while (0)
#define XSTRDUP(mtype, str) zstrdup ((mtype), (str))
#endif /* MEMORY_LOG */