Added thirdparty: boost library

thirdparty/include/boost/math/common_factor_rt.hpp

@@ -0,0 +1,30 @@
+//  (C) Copyright John Maddock 2017.
+
+//  Use, modification and distribution are 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)
+
+#ifndef BOOST_MATH_COMMON_FACTOR_RT_HPP
+#define BOOST_MATH_COMMON_FACTOR_RT_HPP
+
+#ifndef BOOST_MATH_STANDALONE
+#include <boost/integer/common_factor_rt.hpp>
+#include <boost/math/tools/header_deprecated.hpp>
+
+BOOST_MATH_HEADER_DEPRECATED("<boost/integer/common_factor_rt.hpp>");
+
+namespace boost {
+   namespace math {
+      using boost::integer::gcd;
+      using boost::integer::lcm;
+      using boost::integer::gcd_range;
+      using boost::integer::lcm_range;
+      using boost::integer::gcd_evaluator;
+      using boost::integer::lcm_evaluator;
+   }
+}
+#else
+#error Common factor is not available in standalone mode because it requires boost.integer.
+#endif // BOOST_MATH_STANDALONE
+
+#endif  // BOOST_MATH_COMMON_FACTOR_RT_HPP