Add SCons configure checks
[senf.git] / boost_ext / boost / typeof / template_template_param.hpp
diff --git a/boost_ext/boost/typeof/template_template_param.hpp b/boost_ext/boost/typeof/template_template_param.hpp
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+// Copyright (C) 2005 Peder Holt
+// Copyright (C) 2005 Arkadiy Vertleyb
+// 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_TYPEOF_TEMPLATE_TEMPLATE_PARAM_HPP_INCLUDED
+#define BOOST_TYPEOF_TEMPLATE_TEMPLATE_PARAM_HPP_INCLUDED
+
+#include <boost/preprocessor/logical/or.hpp>
+#include <boost/preprocessor/seq/fold_left.hpp>
+#include <boost/preprocessor/seq/enum.hpp>
+
+#define BOOST_TYPEOF_MAKE_OBJ_template(x)   BOOST_TYPEOF_TEMPLATE_PARAM(x)
+#define BOOST_TYPEOF_TEMPLATE(X) template(X) BOOST_TYPEOF_EAT
+#define BOOST_TYPEOF_template(X) (template(X))
+
+#define BOOST_TYPEOF_TEMPLATE_PARAM(Params)\
+    (TEMPLATE_PARAM)\
+    (Params)
+
+#define BOOST_TYPEOF_TEMPLATE_PARAM_GETPARAMS(This)\
+    BOOST_TYPEOF_TOSEQ(BOOST_PP_SEQ_ELEM(1, This))
+
+//Encode / decode this
+#define BOOST_TYPEOF_TEMPLATE_PARAM_ENCODE(This, n)\
+   typedef typename boost::type_of::encode_template<BOOST_PP_CAT(V, n),\
+       BOOST_PP_CAT(P, n)<BOOST_TYPEOF_SEQ_ENUM(BOOST_TYPEOF_MAKE_OBJS(BOOST_TYPEOF_TEMPLATE_PARAM_GETPARAMS(This)),BOOST_TYPEOF_PLACEHOLDER) >\
+   >::type BOOST_PP_CAT(V, BOOST_PP_INC(n));
+
+#define BOOST_TYPEOF_TEMPLATE_PARAM_DECODE(This, n)\
+   typedef boost::type_of::decode_template< BOOST_PP_CAT(iter, n) > BOOST_PP_CAT(d, n);\
+   typedef typename BOOST_PP_CAT(d, n)::type BOOST_PP_CAT(P, n);\
+   typedef typename BOOST_PP_CAT(d, n)::iter BOOST_PP_CAT(iter,BOOST_PP_INC(n));
+
+// template<class, unsigned int, ...> class
+#define BOOST_TYPEOF_TEMPLATE_PARAM_EXPANDTYPE(This) \
+    template <BOOST_PP_SEQ_ENUM(BOOST_TYPEOF_TEMPLATE_PARAM_GETPARAMS(This)) > class
+
+#define BOOST_TYPEOF_TEMPLATE_PARAM_PLACEHOLDER(Param)\
+    Nested_Template_Template_Arguments_Not_Supported
+
+//'template<class,int> class' is reduced to 'class'
+#define BOOST_TYPEOF_TEMPLATE_PARAM_DECLARATION_TYPE(Param) class
+
+// T3<int, (unsigned int)0, ...>
+#define BOOST_TYPEOF_TEMPLATE_PARAM_PLACEHOLDER_TYPES(Param, n)\
+    BOOST_PP_CAT(T,n)<BOOST_TYPEOF_SEQ_ENUM_1(BOOST_TYPEOF_MAKE_OBJS(BOOST_TYPEOF_TEMPLATE_PARAM_GETPARAMS(Param)),BOOST_TYPEOF_PLACEHOLDER) >
+
+#define BOOST_TYPEOF_TEMPLATE_PARAM_ISTEMPLATE 1
+
+////////////////////////////
+// move to encode_decode?
+
+BOOST_TYPEOF_BEGIN_ENCODE_NS
+
+template<class V, class Type_Not_Registered_With_Typeof_System> struct encode_template_impl;
+template<class T, class Iter> struct decode_template_impl;
+
+BOOST_TYPEOF_END_ENCODE_NS
+
+namespace boost { namespace type_of { 
+
+    template<class V, class T> struct encode_template
+        : BOOST_TYPEOF_ENCODE_NS_QUALIFIER::encode_template_impl<V, T>
+    {};
+
+    template<class Iter> struct decode_template 
+        : BOOST_TYPEOF_ENCODE_NS_QUALIFIER::decode_template_impl<typename Iter::type, typename Iter::next>
+    {};
+}}
+
+////////////////////////////
+// move to template_encoding.hpp?
+
+//Template template registration
+#define BOOST_TYPEOF_REGISTER_TYPE_FOR_TEMPLATE_TEMPLATE(Name,Params,ID)\
+    template<class V\
+        BOOST_TYPEOF_SEQ_ENUM_TRAILING(Params,BOOST_TYPEOF_REGISTER_TEMPLATE_PARAM_PAIR)\
+    >\
+    struct encode_template_impl<V,Name<\
+        BOOST_PP_ENUM_PARAMS(\
+        BOOST_PP_SEQ_SIZE(Params),\
+        P)> >\
+        : boost::type_of::push_back<V, boost::mpl::size_t<ID> >\
+    {\
+    };\
+    template<class Iter> struct decode_template_impl<boost::mpl::size_t<ID>, Iter>\
+    {\
+        BOOST_PP_REPEAT(BOOST_PP_SEQ_SIZE(Params),BOOST_TYPEOF_TYPEDEF_INT_PN,_)\
+        typedef Name<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_PLACEHOLDER) > type;\
+        typedef Iter iter;\
+    };
+
+#define BOOST_TYPEOF_TYPEDEF_INT_PN(z,n,Params) typedef int BOOST_PP_CAT(P,n);
+
+#define BOOST_TYPEOF_REGISTER_NOTHING(Name,Params,ID)
+
+//Template template param decoding
+#define BOOST_TYPEOF_TYPEDEF_DECODED_TEMPLATE_TEMPLATE_TYPE(Name,Params)\
+    template<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_REGISTER_DECLARE_DECODER_TYPE_PARAM_PAIR) >\
+    struct decode_params;\
+    template<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_REGISTER_DECODER_TYPE_PARAM_PAIR) >\
+    struct decode_params<BOOST_TYPEOF_SEQ_ENUM(Params,BOOST_TYPEOF_PLACEHOLDER_TYPES) >\
+    {\
+        typedef Name<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),T)> type;\
+    };\
+    typedef typename decode_params<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),P)>::type type;
+
+#define BOOST_TYPEOF_REGISTER_DECLARE_DECODER_TYPE_PARAM_PAIR(z,n,elem) \
+    BOOST_TYPEOF_VIRTUAL(DECLARATION_TYPE, elem)(elem) BOOST_PP_CAT(T, n)
+
+// BOOST_TYPEOF_HAS_TEMPLATES
+#define BOOST_TYPEOF_HAS_TEMPLATES(Params)\
+    BOOST_PP_SEQ_FOLD_LEFT(BOOST_TYPEOF_HAS_TEMPLATES_OP, 0, Params)
+
+#define BOOST_TYPEOF_HAS_TEMPLATES_OP(s, state, elem)\
+    BOOST_PP_OR(state, BOOST_TYPEOF_VIRTUAL(ISTEMPLATE, elem))
+
+//Define template template arguments
+#define BOOST_TYPEOF_REGISTER_TEMPLATE_TEMPLATE_IMPL(Name,Params,ID)\
+    BOOST_PP_IF(BOOST_TYPEOF_HAS_TEMPLATES(Params),\
+        BOOST_TYPEOF_REGISTER_NOTHING,\
+        BOOST_TYPEOF_REGISTER_TYPE_FOR_TEMPLATE_TEMPLATE)(Name,Params,ID)
+
+#endif //BOOST_TYPEOF_TEMPLATE_TEMPLATE_PARAM_HPP_INCLUDED