From 86d4e1c4db244d0eafb2c393c8ca85d37f387e72 Mon Sep 17 00:00:00 2001
From: Peder Holt <peder.holt@gmail.com>
Date: Fri, 5 Oct 2007 12:39:15 +0000
Subject: [PATCH] typeof support for template template arguments for Borland
 5.9.2 (also used for Borland 5.8.2) (reverted to old scheme for other
 compilers)

[SVN r39704]
---
 .../boost/typeof/template_template_param.hpp  | 29 +++++++++++++++----
 1 file changed, 24 insertions(+), 5 deletions(-)

diff --git a/include/boost/typeof/template_template_param.hpp b/include/boost/typeof/template_template_param.hpp
index 48f5c88..4d64190 100755
--- a/include/boost/typeof/template_template_param.hpp
+++ b/include/boost/typeof/template_template_param.hpp
@@ -93,10 +93,17 @@ namespace boost { namespace type_of {
 
 #define BOOST_TYPEOF_TYPEDEF_INT_PN(z,n,Params) typedef int BOOST_PP_CAT(P,n);
 
+#ifdef __BORLANDC__
+#define BOOST_TYPEOF_DECODE_NESTED_TEMPLATE_HELPER_NAME BOOST_PP_CAT(\
+        BOOST_PP_CAT(\
+            BOOST_PP_CAT(\
+                decode_nested_template_helper,\
+                BOOST_TYPEOF_REGISTRATION_GROUP\
+            ),0x10000\
+        ),__LINE__\
+    )
 #define BOOST_TYPEOF_REGISTER_DECODE_NESTED_TEMPLATE_HELPER_IMPL(Name,Params,ID)\
-    template<>\
-    struct decode_nested_template_helper_impl<boost::mpl::size_t<ID> >\
-    {\
+    struct BOOST_TYPEOF_DECODE_NESTED_TEMPLATE_HELPER_NAME {\
         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) >\
@@ -105,12 +112,24 @@ namespace boost { namespace type_of {
             typedef Name<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),T)> type;\
         };\
     };
+//Template template param decoding
+#define BOOST_TYPEOF_TYPEDEF_DECODED_TEMPLATE_TEMPLATE_TYPE(Name,Params)\
+    typedef typename BOOST_TYPEOF_DECODE_NESTED_TEMPLATE_HELPER_NAME::decode_params<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),P)>::type type;
 
+#else
+#define BOOST_TYPEOF_REGISTER_DECODE_NESTED_TEMPLATE_HELPER_IMPL(Name,Params,ID)
 
 //Template template param decoding
 #define BOOST_TYPEOF_TYPEDEF_DECODED_TEMPLATE_TEMPLATE_TYPE(Name,Params)\
-    typedef typename decode_nested_template_helper_impl<self_id>::template decode_params<BOOST_PP_ENUM_PARAMS(BOOST_PP_SEQ_SIZE(Params),P)>::type type;
-
+    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;
+#endif
 #define BOOST_TYPEOF_REGISTER_DECLARE_DECODER_TYPE_PARAM_PAIR(z,n,elem) \
     BOOST_TYPEOF_VIRTUAL(DECLARATION_TYPE, elem)(elem) BOOST_PP_CAT(T, n)