add boost on mac

macx64/include/boost/local_function/aux_/symbol.hpp

@@ -0,0 +1,50 @@
+
+// Copyright (C) 2009-2012 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0
+// (see accompanying file LICENSE_1_0.txt or a copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+// Home at http://www.boost.org/libs/local_function
+
+#ifndef BOOST_LOCAL_FUNCTION_AUX_SYMBOL_HPP_
+#define BOOST_LOCAL_FUNCTION_AUX_SYMBOL_HPP_
+
+#include <boost/preprocessor/cat.hpp>
+#include <boost/preprocessor/seq/cat.hpp>
+#include <boost/preprocessor/seq/transform.hpp>
+
+// PRIVATE //
+
+// NOTE: INFIX is used to separate symbols concatenated together. Some of these
+// symbols are user-defined so they can be anything. Because they can contain
+// underscore `_` and/or start with capital letters, it is NOT safe for the
+// INFIX to be the underscore `_` character because that could lead to library
+// defined symbols containing double underscores `__` or a leading underscore
+// (followed or not by a capital letter) in the global namespace. All these
+// symbols are reserved by the C++ standard: (1) "each name that contains a
+// double underscore (_ _) or begins with an underscore followed by an
+// uppercase letter is reserved to the implementation" and (2) "each name that
+// begins with an underscore is reserved to the implementation for use as a
+// name in the global namespace".
+#define BOOST_LOCAL_FUNCTION_AUX_SYMBOL_INFIX_ X // `X` used as separator.
+            
+#define BOOST_LOCAL_FUNCTION_AUX_SYMBOL_PREFIX_ boost_local_function_aux
+
+#define BOOST_LOCAL_FUNCTION_AUX_SYMBOL_POSTFIX_(s, unused, tokens) \
+    BOOST_PP_CAT(tokens, BOOST_LOCAL_FUNCTION_AUX_SYMBOL_INFIX_)
+
+// PUBLIC //
+
+// Prefixes this library reserved symbol.
+#define BOOST_LOCAL_FUNCTION_AUX_SYMBOL(seq) \
+    BOOST_PP_SEQ_CAT(BOOST_PP_SEQ_TRANSFORM( \
+            BOOST_LOCAL_FUNCTION_AUX_SYMBOL_POSTFIX_, \
+            ~, (BOOST_LOCAL_FUNCTION_AUX_SYMBOL_PREFIX_) seq ))
+
+// Postfixes this library reserved symbol.
+#define BOOST_LOCAL_FUNCTION_AUX_SYMBOL_POSTFIX(seq) \
+    BOOST_PP_SEQ_CAT(BOOST_PP_SEQ_TRANSFORM( \
+            BOOST_LOCAL_FUNCTION_AUX_SYMBOL_POSTFIX_, \
+            ~, seq (BOOST_LOCAL_FUNCTION_AUX_SYMBOL_PREFIX_) ))
+
+#endif // #include guard
+