From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 21 Nov 2011 05:17:00 +0000 (+1030)
Subject: cast: fix warnings with -Wextra (specifically -Wmissing-field-initializers)
X-Git-Url: http://git.ozlabs.org/?p=ccan;a=commitdiff_plain;h=b2cc1341c9464b6da4654fd3fa0aafe934fba578

cast: fix warnings with -Wextra (specifically -Wmissing-field-initializers)

As noted by Jan Engelhardt; libHX fixed this already.
---

diff --git a/ccan/cast/cast.h b/ccan/cast/cast.h
index 9f3ecdb7..b108b0c8 100644
--- a/ccan/cast/cast.h
+++ b/ccan/cast/cast.h
@@ -106,11 +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))