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diff --git a/ETL/test/clock.cpp b/ETL/test/clock.cpp
new file mode 100644
index 0000000..652644b
--- /dev/null
+++ b/ETL/test/clock.cpp
@@ -0,0 +1,79 @@
+/*! ========================================================================
+** Extended Template and Library Test Suite
+** Clock Test
+** $Id$
+**
+** Copyright (c) 2002 Robert B. Quattlebaum Jr.
+**
+** This package is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License as
+** published by the Free Software Foundation; either version 2 of
+** the License, or (at your option) any later version.
+**
+** This package is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+** General Public License for more details.
+**
+** === N O T E S ===========================================================
+**
+** ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#include <ETL/clock>
+#include <stdio.h>
+
+/* === M A C R O S ========================================================= */
+
+using namespace etl;
+
+/* === C L A S S E S ======================================================= */
+
+
+/* === P R O C E D U R E S ================================================= */
+
+int basic_test(void)
+{
+	int ret=0;
+	fprintf(stderr,"default etl::clock precision:  %0.8f\n",etl::clock::precision());
+	fprintf(stderr,"realtime etl::clock precision: %0.8f\n",etl::clock_realtime::precision());
+	fprintf(stderr,"proctime etl::clock precision: %0.8f\n",etl::clock_proctime::precision());
+
+	etl::clock_realtime timer;
+	etl::clock::value_type amount,total;
+
+	for(amount=3.0;amount>=0.00015;amount/=2.0)
+	{
+		if(amount*1000000.0<1000.0f)
+			fprintf(stderr,"waiting %f microseconds...\n",amount*1000000.0);
+		else if(amount*1000.0<400.0f)
+			fprintf(stderr,"waiting %f milliseconds...\n",amount*1000.0);
+		else
+			fprintf(stderr,"waiting %f seconds...\n",amount);
+
+		timer.reset();
+		etl::clock::sleep(amount);
+		total=timer();
+		if((total-amount)*1000000.0<1000.0f)
+			fprintf(stderr," ** I waited %f seconds, error of %f microseconds\n",total,(total-amount)*1000000);
+		else if((total-amount)*1000.0<400.0f)
+			fprintf(stderr," ** I waited %f seconds, error of %f milliseconds\n",total,(total-amount)*1000);
+		else
+			fprintf(stderr," ** I waited %f seconds, error of %f seconds\n",total,total-amount);
+
+	}
+	return ret;
+}
+
+/* === E N T R Y P O I N T ================================================= */
+
+int main()
+{
+	int error=0;
+
+	error+=basic_test();
+
+	return error;
+}
+