From 8625f7547072fa9ac48997b823d372791ffc77d1 Mon Sep 17 00:00:00 2001
From: Yuichi Nishiwaki <yuichi.nishiwaki@gmail.com>
Date: Wed, 19 Mar 2014 17:43:53 +0900
Subject: [PATCH] move utility macros to picrin/util.h

---
 include/picrin.h      | 25 +------------------------
 include/picrin/util.h | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 24 deletions(-)
 create mode 100644 include/picrin/util.h

diff --git a/include/picrin.h b/include/picrin.h
index 62c05775..af333461 100644
--- a/include/picrin.h
+++ b/include/picrin.h
@@ -39,31 +39,8 @@ extern "C" {
 #include "xfile/xfile.h"
 #include "xrope/xrope.h"
 
-#if __STDC_VERSION__ >= 201112L
-# define noreturn _Noreturn
-#elif __GNUC__ || __clang__
-# define noreturn __attribute__((noreturn))
-#endif
-
-#define FALLTHROUGH ((void)0)
-#define UNUSED(v) ((void)(v))
-
-#define GENSYM2__(x,y) x##y
-#define GENSYM1__(x,y) GENSYM2__(x,y)
-#if defined(__COUNTER__)
-# define GENSYM(x) GENSYM1__(x,__COUNTER__)
-#else
-# define GENSYM(x) GENSYM1__(x,__LINE__)
-#endif
-
-#if __GNUC__ || __clang__
-# define UNREACHABLE() (__builtin_unreachable())
-#else
-# include <assert.h>
-# define UNREACHABLE() (assert(false))
-#endif
-
 #include "config.h"
+#include "picrin/util.h"
 #include "picrin/value.h"
 
 typedef struct pic_code pic_code;
diff --git a/include/picrin/util.h b/include/picrin/util.h
new file mode 100644
index 00000000..ec4b2a9d
--- /dev/null
+++ b/include/picrin/util.h
@@ -0,0 +1,40 @@
+/**
+ * See Copyright Notice in picrin.h
+ */
+
+#ifndef PICRIN_UTIL_H__
+#define PICRIN_UTIL_H__
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#if __STDC_VERSION__ >= 201112L
+# define noreturn _Noreturn
+#elif __GNUC__ || __clang__
+# define noreturn __attribute__((noreturn))
+#endif
+
+#define FALLTHROUGH ((void)0)
+#define UNUSED(v) ((void)(v))
+
+#define GENSYM2__(x,y) x##y
+#define GENSYM1__(x,y) GENSYM2__(x,y)
+#if defined(__COUNTER__)
+# define GENSYM(x) GENSYM1__(x,__COUNTER__)
+#else
+# define GENSYM(x) GENSYM1__(x,__LINE__)
+#endif
+
+#if __GNUC__ || __clang__
+# define UNREACHABLE() (__builtin_unreachable())
+#else
+# include <assert.h>
+# define UNREACHABLE() (assert(false))
+#endif
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif