1 files changed, 85 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/proto/context/null.hpp b/3rdParty/Boost/src/boost/proto/context/null.hpp
new file mode 100644
index 0000000..4906578
--- /dev/null
+++ b/3rdParty/Boost/src/boost/proto/context/null.hpp
@@ -0,0 +1,85 @@
+#ifndef BOOST_PP_IS_ITERATING
+    ///////////////////////////////////////////////////////////////////////////////
+    /// \file null.hpp
+    /// Definintion of null_context\<\>, an evaluation context for
+    /// proto::eval() that simply evaluates each child expression, doesn't
+    /// combine the results at all, and returns void.
+    //
+    //  Copyright 2008 Eric Niebler. 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_PROTO_CONTEXT_NULL_HPP_EAN_06_24_2007
+    #define BOOST_PROTO_CONTEXT_NULL_HPP_EAN_06_24_2007
+
+    #include <boost/preprocessor/iteration/iterate.hpp>
+    #include <boost/preprocessor/repetition/repeat.hpp>
+    #include <boost/proto/proto_fwd.hpp>
+    #include <boost/proto/eval.hpp>
+    #include <boost/proto/traits.hpp>
+
+    namespace boost { namespace proto { namespace context
+    {
+
+        template<
+            typename Expr
+          , typename Context
+          , long Arity          // = Expr::proto_arity_c
+        >
+        struct null_eval
+        {};
+
+        template<typename Expr, typename Context>
+        struct null_eval<Expr, Context, 0>
+        {
+            typedef void result_type;
+            void operator()(Expr &, Context &) const
+            {}
+        };
+
+    #define BOOST_PROTO_EVAL_N(Z, N, DATA)                                                          \
+        proto::eval(proto::child_c<N>(expr), ctx);                                                    \
+        /**/
+
+    #define BOOST_PP_ITERATION_PARAMS_1                                                             \
+        (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/context/null.hpp>))                   \
+        /**/
+
+    #include BOOST_PP_ITERATE()
+
+    #undef BOOST_PROTO_EVAL_N
+
+        /// null_context
+        ///
+        struct null_context
+        {
+            /// null_context::eval
+            ///
+            template<typename Expr, typename ThisContext = null_context const>
+            struct eval
+              : null_eval<Expr, ThisContext>
+            {};
+        };
+
+    }}}
+
+    #endif
+
+#else
+
+    #define N BOOST_PP_ITERATION()
+
+        template<typename Expr, typename Context>
+        struct null_eval<Expr, Context, N>
+        {
+            typedef void result_type;
+
+            void operator ()(Expr &expr, Context &ctx) const
+            {
+                BOOST_PP_REPEAT(N, BOOST_PROTO_EVAL_N, ~)
+            }
+        };
+
+    #undef N
+
+#endif