From a54e8e11f50279ac03273d047688d2681a059893 Mon Sep 17 00:00:00 2001
From: Stephane Marchesin <stephane.marchesin@gmail.com>
Date: Fri, 7 May 2010 00:41:32 -0700
Subject: Add util.h

---
 util.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 util.h

diff --git a/util.h b/util.h
new file mode 100644
index 0000000..6ae26a6
--- /dev/null
+++ b/util.h
@@ -0,0 +1,22 @@
+#ifndef _util_h_
+#define _util_h_
+
+#include <ctype.h>
+#include "xenon.h"
+
+#define min(a,b) ((a)<(b)?(a):(b))
+#define max(a,b) ((a)>(b)?(a):(b))
+
+static int inline hexval(char digit)
+{
+	if (!isxdigit(digit))
+		return 0;
+	if (isdigit(digit))
+		return digit - '0';
+	if (isalpha(digit))
+		return tolower(digit) - 'a' + 10;
+	return 0;
+}
+
+#endif
+
-- 
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