add boost on mac

macx64/include/boost/metaparse/v1/cpp98/impl/pop_front.hpp

@@ -0,0 +1,56 @@
+#ifndef BOOST_METAPARSE_V1_CPP98_IMPL_POP_FRONT_HPP
+#define BOOST_METAPARSE_V1_CPP98_IMPL_POP_FRONT_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/cpp98/fwd/string.hpp>
+
+#include <boost/preprocessor/repetition/enum_params.hpp>
+#include <boost/preprocessor/repetition/repeat_from_to.hpp>
+
+namespace boost
+{
+  namespace metaparse
+  {
+    namespace v1
+    {
+      namespace impl
+      {
+        template <class S>
+        struct pop_front;
+
+        #ifdef BOOST_METAPARSE_POP_FRONT
+        #  error BOOST_METAPARSE_POP_FRONT already defined
+        #endif
+        #define BOOST_METAPARSE_POP_FRONT(z, n, unused) \
+          BOOST_PP_COMMA_IF(BOOST_PP_DEC(n)) BOOST_PP_CAT(C, n)
+
+        template < \
+          BOOST_PP_ENUM_PARAMS(BOOST_METAPARSE_LIMIT_STRING_SIZE, int C) \
+        >
+        struct
+          pop_front<
+            string<BOOST_PP_ENUM_PARAMS(BOOST_METAPARSE_LIMIT_STRING_SIZE, C)>
+          > :
+          string<
+            BOOST_PP_REPEAT_FROM_TO(
+              1,
+              BOOST_METAPARSE_LIMIT_STRING_SIZE,
+              BOOST_METAPARSE_POP_FRONT,
+              ~
+            ),
+            BOOST_NO_CHAR
+          >
+        {};
+
+        #undef BOOST_METAPARSE_POP_FRONT
+      }
+    }
+  }
+}
+
+#endif
+