Boost.Chrono: Moved to trunk

[SVN r67698]

example/test_thread_clock.cpp

@@ -0,0 +1,41 @@
+//  test_thread_clock.cpp  ----------------------------------------------------------//
+
+//  Copyright 2009 Vicente J. Botet Escriba
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+
+#include <boost/chrono/thread_clock.hpp>
+#include <boost/type_traits.hpp>
+
+#include <iostream>
+
+using namespace boost::chrono;
+
+void test_thread_clock()
+{
+#if defined(BOOST_CHRONO_HAS_THREAD_CLOCK)
+    std::cout << "thread_clock test" << std::endl;
+    thread_clock::duration delay = milliseconds(5);
+    thread_clock::time_point start = thread_clock::now();
+    while (thread_clock::now() - start <= delay)
+        ;
+    thread_clock::time_point stop = thread_clock::now();
+    thread_clock::duration elapsed = stop - start;
+    std::cout << "paused " << nanoseconds(elapsed).count() << " nanoseconds\n";
+    start = thread_clock::now();
+    stop = thread_clock::now();
+    std::cout << "thread_clock resolution estimate: " << nanoseconds(stop-start).count() << " nanoseconds\n";
+#else
+    std::cout << "thread_clock not available\n";
+#endif
+}
+
+
+int main()
+{
+    test_thread_clock();
+    return 0;
+}
+