add boost on mac

macx64/include/boost/metaparse/v1/impl/iterate_impl.hpp

@@ -0,0 +1,46 @@
+#ifndef BOOST_METAPARSE_V1_IMPL_ITERATE_IMPL_HPP
+#define BOOST_METAPARSE_V1_IMPL_ITERATE_IMPL_HPP
+
+// Copyright Abel Sinkovics (abel@sinkovics.hu)  2013.
+// 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)
+
+#include <boost/metaparse/v1/impl/iterate_impl_unchecked.hpp>
+#include <boost/metaparse/v1/return_.hpp>
+#include <boost/metaparse/v1/is_error.hpp>
+
+#include <boost/mpl/eval_if.hpp>
+
+namespace boost
+{
+  namespace metaparse
+  {
+    namespace v1
+    {
+      namespace impl
+      {
+        template <int N, class P, class Accum>
+        struct iterate_impl
+        {
+          typedef iterate_impl type;
+          
+          template <class S, class Pos>
+          struct apply :
+            boost::mpl::eval_if<
+              typename is_error<typename P::template apply<S, Pos> >::type,
+              typename P::template apply<S, Pos>,
+              iterate_impl_unchecked<N, P, Accum, S, Pos>
+            >
+          {};
+        };
+        
+        template <class P, class Accum>
+        struct iterate_impl<0, P, Accum> : return_<Accum> {};
+      }
+    }
+  }
+}
+
+#endif
+