add boost on mac

macx64/include/boost/units/base_units/information/byte.hpp

@@ -0,0 +1,36 @@
+// Boost.Units - A C++ library for zero-overhead dimensional analysis and 
+// unit/quantity manipulation and conversion
+//
+// Copyright (C) 2014 Erik Erlandson
+//
+// Distributed under 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_UNITS_BASE_UNITS_INFORMATION_BYTE_HPP_INCLUDED
+#define BOOST_UNITS_BASE_UNITS_INFORMATION_BYTE_HPP_INCLUDED
+
+#include <boost/units/scaled_base_unit.hpp>
+#include <boost/units/static_rational.hpp>
+#include <boost/units/scale.hpp>
+#include <boost/units/units_fwd.hpp>
+#include <boost/units/base_units/information/bit.hpp>
+
+namespace boost {
+namespace units {
+namespace information {
+
+typedef scaled_base_unit<boost::units::information::bit_base_unit, scale<2, static_rational<3> > > byte_base_unit;
+
+} // namespace information
+
+template<>
+struct base_unit_info<information::byte_base_unit> {
+    static BOOST_CONSTEXPR const char* name()   { return("byte"); }
+    static BOOST_CONSTEXPR const char* symbol() { return("B"); }
+};
+
+} // namespace units
+} // namespace boost
+
+#endif // BOOST_UNITS_BASE_UNITS_INFORMATION_BYTE_HPP_INCLUDED