From a20356952bb4447d5df5d01f4023f7f125b6c2b8 Mon Sep 17 00:00:00 2001
From: Yuichi Nishiwaki <yuichi.nishiwaki@gmail.com>
Date: Wed, 19 Mar 2014 17:52:54 +0900
Subject: [PATCH] refactor GENSYM macro

---
 include/picrin/util.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/picrin/util.h b/include/picrin/util.h
index f5971832..3475caae 100644
--- a/include/picrin/util.h
+++ b/include/picrin/util.h
@@ -20,12 +20,12 @@ extern "C" {
 #define FALLTHROUGH ((void)0)
 #define UNUSED(v) ((void)(v))
 
-#define GENSYM2__(x,y) x##y
+#define GENSYM2__(x,y) G##x##_##y##__
 #define GENSYM1__(x,y) GENSYM2__(x,y)
 #if defined(__COUNTER__)
-# define GENSYM(x) GENSYM1__(x,__COUNTER__)
+# define GENSYM(x) GENSYM1__(__COUNTER__,x)
 #else
-# define GENSYM(x) GENSYM1__(x,__LINE__)
+# define GENSYM(x) GENSYM1__(__LINE__,x)
 #endif
 
 #if __GNUC__ || __clang__