From 19c3c957fc195fdf0b90d84d1e4e8307594efc80 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Thu, 3 Apr 2014 20:23:39 +0900
Subject: add assertion before casting

---
 src/codegen.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src')

diff --git a/src/codegen.c b/src/codegen.c
index 418e1f371..c869285d9 100644
--- a/src/codegen.c
+++ b/src/codegen.c
@@ -719,6 +719,7 @@ attrsym(codegen_scope *s, mrb_sym a)
                                  + 1 /* '=' */
                                  + 1 /* '\0' */
                                  );
+  mrb_assert(len <= SIZE_MAX);
   memcpy(name2, name, (size_t)len);
   name2[len] = '=';
   name2[len+1] = '\0';
-- 
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