New upstream version 8.1.0

thirdparty/source/boost_1_61_0/boost/range/empty.hpp

@@ -0,0 +1,34 @@
+// Boost.Range library
+//
+//  Copyright Thorsten Ottosen 2003-2004. Use, modification and
+//  distribution is subject to the Boost Software License, Version
+//  1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+// For more information, see http://www.boost.org/libs/range/
+//
+
+#ifndef BOOST_RANGE_EMPTY_HPP
+#define BOOST_RANGE_EMPTY_HPP
+
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
+#include <boost/range/config.hpp>
+#include <boost/range/begin.hpp>
+#include <boost/range/end.hpp>
+
+namespace boost 
+{ 
+
+    template< class T >
+    inline bool empty( const T& r )
+    {
+        return boost::begin( r ) == boost::end( r );
+    }
+
+} // namespace 'boost'
+
+
+#endif