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authorJuan Quintela <quintela@redhat.com>2009-08-20 19:42:19 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2009-08-27 20:30:20 -0500
commitf0d99ad7116e9f6f62db6f7c7fa7b1fca8289b3c (patch)
tree4bde1019253f46efeb7e87535f80b94227ccf11a /osdep.h
parentqcow2: Metadata preallocation (diff)
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move useful type definitons to osdep.h
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'osdep.h')
-rw-r--r--osdep.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/osdep.h b/osdep.h
index 2517b1a36..32ee94b5a 100644
--- a/osdep.h
+++ b/osdep.h
@@ -36,6 +36,9 @@
(type *) ((char *) __mptr - offsetof(type, member));})
#endif
+#define typeof_field(type, field) typeof(((type *)0)->field)
+#define type_check(t1,t2) ((t1*)0 - (t2*)0)
+
#ifndef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif