X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fcast%2Fcast.h;h=b108b0c864d3b0cd07e26a497040537921d674b4;hb=695e2ae319052ceb410ef00d0181aa607f1ceb6d;hp=daebd8572391f07dfb17ae20c341c114c2507c3d;hpb=4a084a9e956e6e5fec9f9ecb02ca56a79de4a422;p=ccan

diff --git a/ccan/cast/cast.h b/ccan/cast/cast.h
index daebd857..b108b0c8 100644
--- a/ccan/cast/cast.h
+++ b/ccan/cast/cast.h
@@ -1,3 +1,4 @@
+/* Licensed under LGPLv2.1+ - see LICENSE file for details */
 #ifndef CCAN_CAST_H
 #define CCAN_CAST_H
 #include "config.h"
@@ -105,11 +106,11 @@
 	  )
 
 #define cast_const_strip1(expr)			\
-	__typeof__(*(struct { int z; __typeof__(expr) x; }){0}.x)
+	__typeof__(*(union { int z; __typeof__(expr) x; }){0}.x)
 #define cast_const_strip2(expr) \
-	__typeof__(**(struct { int z; __typeof__(expr) x; }){0}.x)
+	__typeof__(**(union { int z; __typeof__(expr) x; }){0}.x)
 #define cast_const_strip3(expr) \
-	__typeof__(***(struct { int z; __typeof__(expr) x; }){0}.x)
+	__typeof__(***(union { int z; __typeof__(expr) x; }){0}.x)
 #define cast_const_compat1(expr, type)					\
 	__builtin_types_compatible_p(cast_const_strip1(expr),		\
 				     cast_const_strip1(type))