From 1263f82a592d334e0ed4d03fb5b350b4733ca398 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 9 Dec 2015 08:02:06 +0000
Subject: regparse.h: ANSI alias rule fix

* regparse.h (SET_NTYPE): get rid of breaking strict aliasing.
  patch by Zarko Todorovski in [ruby-core:71953].  [Bug #11790]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52999 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 regparse.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'regparse.h')

diff --git a/regparse.h b/regparse.h
index 35de54671e..caf0790b1c 100644
--- a/regparse.h
+++ b/regparse.h
@@ -67,7 +67,11 @@ RUBY_SYMBOL_EXPORT_BEGIN
                        BIT_NT_CANY | BIT_NT_BREF)) != 0)
 
 #define NTYPE(node)             ((node)->u.base.type)
-#define SET_NTYPE(node, ntype)   (node)->u.base.type = (ntype)
+#define SET_NTYPE(node, ntype) \
+    do { \
+	int value = ntype; \
+	memcpy(&((node)->u.base.type), &value, sizeof(int)); \
+    } while (0)
 
 #define NSTR(node)         (&((node)->u.str))
 #define NCCLASS(node)      (&((node)->u.cclass))
-- 
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