From 8642fe0ba100dee5a66265b07e21e043887a4a92 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Fri, 21 Dec 2012 00:06:20 +0000
Subject: Signals (slots really) are now comperable.  Building two slots for
 the same function or same object and method will compare as expected.

Also added a -= function to Bu::List which works just like erase.
---
 gensigs.bld          |  26 ++++-
 pregen/signals.h     | 276 +++++++++++++++++++++++++++++++++++++++++++++++++--
 src/stable/archive.h |   2 +-
 src/stable/list.h    |   5 +
 src/tests/signal.cpp |   2 +
 5 files changed, 298 insertions(+), 13 deletions(-)

diff --git a/gensigs.bld b/gensigs.bld
index 6cdd5d5..6bb1e55 100644
--- a/gensigs.bld
+++ b/gensigs.bld
@@ -16,6 +16,7 @@ function genSigs( outName )
         "#ifndef BU_SIGNALS_H\n"
         "#define BU_SIGNALS_H\n"
         "\n"
+        "#include <typeinfo>\n"
         "#include \"bu/util.h\"\n"
         "#include \"bu/exceptionbase.h\"\n"
         "#include \"bu/list.h\"\n"
@@ -69,6 +70,7 @@ function genSigs( outName )
             "        virtual ~_Slot${i}() { }\n"
             "        virtual ret operator()( ${funcParams} )=0;\n"
             "        virtual _Slot${i}<${templCallParams}> *clone() const=0;\n"
+            "        virtual bool operator==( const _Slot${i}<${templCallParams}> &rhs ) const=0;\n"
             "    };\n"
             "    \n"
             "    template<typename cls, ${templParams}>\n"
@@ -89,6 +91,12 @@ function genSigs( outName )
             "            return new __Slot${i}<cls, ${templCallParams}>( pCls, pFnc );\n"
             "        }\n"
             "    \n"
+            "        virtual bool operator==( const _Slot${i}<${templCallParams}> &rhs ) const\n"
+            "        {\n"
+            "            const __Slot${i}<cls, ${templCallParams}> &rrhs = (const __Slot${i}<cls, ${templCallParams}> &)rhs;\n"
+            "            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;\n"
+            "        }\n"
+            "    \n"
             "    private:\n"
             "        cls *pCls;\n"
             "        ret (cls::*pFnc)( ${funcAnonParams} );\n"
@@ -112,6 +120,11 @@ function genSigs( outName )
             "            return new __Slot${i}F<${templCallParams}>( pFnc );\n"
             "        }\n"
             "    \n"
+            "        virtual bool operator==( const _Slot${i}<${templCallParams}> &rhs ) const\n"
+            "        {\n"
+            "            return pFnc == ((const __Slot${i}F<${templCallParams}> &)rhs).pFnc;\n"
+            "        }\n"
+            "    \n"
             "    private:\n"
             "        ret (*pFnc)( ${funcAnonParams} );\n"
             "    };\n"
@@ -141,6 +154,17 @@ function genSigs( outName )
             "            return *this;\n"
             "        }\n"
             "    \n"
+            "        bool operator==( const Signal${i}<${templCallParams}> &rhs ) const\n"
+            "        {\n"
+            "            if( pCb == rhs.pCb )\n"
+            "            return true;\n"
+            "            if( pCb == NULL || rhs.pCb == NULL )\n"
+            "            return false;\n"
+            "            if( typeid(pCb) != typeid(rhs.pCb) )\n"
+            "            return false;\n"
+            "            return *pCb == *rhs.pCb;\n"
+            "        }\n"
+            "    \n"
             "    private:\n"
             "        _Slot${i}<${templCallParams}> *pCb;\n"
             "    };\n"
@@ -187,7 +211,7 @@ function genSigs( outName )
             "                else\n"
             "                    return (*i)( ${funcCallParams} );\n"
             "            }\n"
-            "            throw Bu::ExceptionBase(\"Empty SignalList with non-void return value called.\");\n"
+            "            throw Bu::SignalException(\"Empty SignalList with non-void return value called.\");\n"
             "        }\n"
             "    };\n"
             "    \n"
diff --git a/pregen/signals.h b/pregen/signals.h
index e8374e3..3435986 100644
--- a/pregen/signals.h
+++ b/pregen/signals.h
@@ -8,6 +8,7 @@
 #ifndef BU_SIGNALS_H
 #define BU_SIGNALS_H
 
+#include <typeinfo>
 #include "bu/util.h"
 #include "bu/exceptionbase.h"
 #include "bu/list.h"
@@ -29,6 +30,7 @@ namespace Bu
         virtual ~_Slot0() { }
         virtual ret operator()(  )=0;
         virtual _Slot0<ret> *clone() const=0;
+        virtual bool operator==( const _Slot0<ret> &rhs ) const=0;
     };
     
     template<typename cls, typename ret>
@@ -49,6 +51,12 @@ namespace Bu
             return new __Slot0<cls, ret>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot0<ret> &rhs ) const
+        {
+            const __Slot0<cls, ret> &rrhs = (const __Slot0<cls, ret> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)(  );
@@ -72,6 +80,11 @@ namespace Bu
             return new __Slot0F<ret>( pFnc );
         }
     
+        virtual bool operator==( const _Slot0<ret> &rhs ) const
+        {
+            return pFnc == ((const __Slot0F<ret> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)(  );
     };
@@ -101,6 +114,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal0<ret> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot0<ret> *pCb;
     };
@@ -147,7 +171,7 @@ namespace Bu
                 else
                     return (*i)(  );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -184,6 +208,7 @@ namespace Bu
         virtual ~_Slot1() { }
         virtual ret operator()( p1t p1 )=0;
         virtual _Slot1<ret, p1t> *clone() const=0;
+        virtual bool operator==( const _Slot1<ret, p1t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t>
@@ -204,6 +229,12 @@ namespace Bu
             return new __Slot1<cls, ret, p1t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot1<ret, p1t> &rhs ) const
+        {
+            const __Slot1<cls, ret, p1t> &rrhs = (const __Slot1<cls, ret, p1t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t );
@@ -227,6 +258,11 @@ namespace Bu
             return new __Slot1F<ret, p1t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot1<ret, p1t> &rhs ) const
+        {
+            return pFnc == ((const __Slot1F<ret, p1t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t );
     };
@@ -256,6 +292,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal1<ret, p1t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot1<ret, p1t> *pCb;
     };
@@ -302,7 +349,7 @@ namespace Bu
                 else
                     return (*i)( p1 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -339,6 +386,7 @@ namespace Bu
         virtual ~_Slot2() { }
         virtual ret operator()( p1t p1, p2t p2 )=0;
         virtual _Slot2<ret, p1t, p2t> *clone() const=0;
+        virtual bool operator==( const _Slot2<ret, p1t, p2t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t>
@@ -359,6 +407,12 @@ namespace Bu
             return new __Slot2<cls, ret, p1t, p2t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot2<ret, p1t, p2t> &rhs ) const
+        {
+            const __Slot2<cls, ret, p1t, p2t> &rrhs = (const __Slot2<cls, ret, p1t, p2t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t );
@@ -382,6 +436,11 @@ namespace Bu
             return new __Slot2F<ret, p1t, p2t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot2<ret, p1t, p2t> &rhs ) const
+        {
+            return pFnc == ((const __Slot2F<ret, p1t, p2t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t );
     };
@@ -411,6 +470,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal2<ret, p1t, p2t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot2<ret, p1t, p2t> *pCb;
     };
@@ -457,7 +527,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -494,6 +564,7 @@ namespace Bu
         virtual ~_Slot3() { }
         virtual ret operator()( p1t p1, p2t p2, p3t p3 )=0;
         virtual _Slot3<ret, p1t, p2t, p3t> *clone() const=0;
+        virtual bool operator==( const _Slot3<ret, p1t, p2t, p3t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t, typename p3t>
@@ -514,6 +585,12 @@ namespace Bu
             return new __Slot3<cls, ret, p1t, p2t, p3t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot3<ret, p1t, p2t, p3t> &rhs ) const
+        {
+            const __Slot3<cls, ret, p1t, p2t, p3t> &rrhs = (const __Slot3<cls, ret, p1t, p2t, p3t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t, p3t );
@@ -537,6 +614,11 @@ namespace Bu
             return new __Slot3F<ret, p1t, p2t, p3t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot3<ret, p1t, p2t, p3t> &rhs ) const
+        {
+            return pFnc == ((const __Slot3F<ret, p1t, p2t, p3t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t, p3t );
     };
@@ -566,6 +648,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal3<ret, p1t, p2t, p3t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot3<ret, p1t, p2t, p3t> *pCb;
     };
@@ -612,7 +705,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2, p3 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -649,6 +742,7 @@ namespace Bu
         virtual ~_Slot4() { }
         virtual ret operator()( p1t p1, p2t p2, p3t p3, p4t p4 )=0;
         virtual _Slot4<ret, p1t, p2t, p3t, p4t> *clone() const=0;
+        virtual bool operator==( const _Slot4<ret, p1t, p2t, p3t, p4t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t, typename p3t, typename p4t>
@@ -669,6 +763,12 @@ namespace Bu
             return new __Slot4<cls, ret, p1t, p2t, p3t, p4t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot4<ret, p1t, p2t, p3t, p4t> &rhs ) const
+        {
+            const __Slot4<cls, ret, p1t, p2t, p3t, p4t> &rrhs = (const __Slot4<cls, ret, p1t, p2t, p3t, p4t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t, p3t, p4t );
@@ -692,6 +792,11 @@ namespace Bu
             return new __Slot4F<ret, p1t, p2t, p3t, p4t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot4<ret, p1t, p2t, p3t, p4t> &rhs ) const
+        {
+            return pFnc == ((const __Slot4F<ret, p1t, p2t, p3t, p4t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t, p3t, p4t );
     };
@@ -721,6 +826,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal4<ret, p1t, p2t, p3t, p4t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot4<ret, p1t, p2t, p3t, p4t> *pCb;
     };
@@ -767,7 +883,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2, p3, p4 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -804,6 +920,7 @@ namespace Bu
         virtual ~_Slot5() { }
         virtual ret operator()( p1t p1, p2t p2, p3t p3, p4t p4, p5t p5 )=0;
         virtual _Slot5<ret, p1t, p2t, p3t, p4t, p5t> *clone() const=0;
+        virtual bool operator==( const _Slot5<ret, p1t, p2t, p3t, p4t, p5t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t, typename p3t, typename p4t, typename p5t>
@@ -824,6 +941,12 @@ namespace Bu
             return new __Slot5<cls, ret, p1t, p2t, p3t, p4t, p5t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot5<ret, p1t, p2t, p3t, p4t, p5t> &rhs ) const
+        {
+            const __Slot5<cls, ret, p1t, p2t, p3t, p4t, p5t> &rrhs = (const __Slot5<cls, ret, p1t, p2t, p3t, p4t, p5t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t, p3t, p4t, p5t );
@@ -847,6 +970,11 @@ namespace Bu
             return new __Slot5F<ret, p1t, p2t, p3t, p4t, p5t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot5<ret, p1t, p2t, p3t, p4t, p5t> &rhs ) const
+        {
+            return pFnc == ((const __Slot5F<ret, p1t, p2t, p3t, p4t, p5t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t, p3t, p4t, p5t );
     };
@@ -876,6 +1004,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal5<ret, p1t, p2t, p3t, p4t, p5t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot5<ret, p1t, p2t, p3t, p4t, p5t> *pCb;
     };
@@ -922,7 +1061,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2, p3, p4, p5 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -959,6 +1098,7 @@ namespace Bu
         virtual ~_Slot6() { }
         virtual ret operator()( p1t p1, p2t p2, p3t p3, p4t p4, p5t p5, p6t p6 )=0;
         virtual _Slot6<ret, p1t, p2t, p3t, p4t, p5t, p6t> *clone() const=0;
+        virtual bool operator==( const _Slot6<ret, p1t, p2t, p3t, p4t, p5t, p6t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t, typename p3t, typename p4t, typename p5t, typename p6t>
@@ -979,6 +1119,12 @@ namespace Bu
             return new __Slot6<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot6<ret, p1t, p2t, p3t, p4t, p5t, p6t> &rhs ) const
+        {
+            const __Slot6<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t> &rrhs = (const __Slot6<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t );
@@ -1002,6 +1148,11 @@ namespace Bu
             return new __Slot6F<ret, p1t, p2t, p3t, p4t, p5t, p6t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot6<ret, p1t, p2t, p3t, p4t, p5t, p6t> &rhs ) const
+        {
+            return pFnc == ((const __Slot6F<ret, p1t, p2t, p3t, p4t, p5t, p6t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t );
     };
@@ -1031,6 +1182,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal6<ret, p1t, p2t, p3t, p4t, p5t, p6t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot6<ret, p1t, p2t, p3t, p4t, p5t, p6t> *pCb;
     };
@@ -1077,7 +1239,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2, p3, p4, p5, p6 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -1114,6 +1276,7 @@ namespace Bu
         virtual ~_Slot7() { }
         virtual ret operator()( p1t p1, p2t p2, p3t p3, p4t p4, p5t p5, p6t p6, p7t p7 )=0;
         virtual _Slot7<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> *clone() const=0;
+        virtual bool operator==( const _Slot7<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t, typename p3t, typename p4t, typename p5t, typename p6t, typename p7t>
@@ -1134,6 +1297,12 @@ namespace Bu
             return new __Slot7<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot7<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> &rhs ) const
+        {
+            const __Slot7<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> &rrhs = (const __Slot7<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t, p7t );
@@ -1157,6 +1326,11 @@ namespace Bu
             return new __Slot7F<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot7<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> &rhs ) const
+        {
+            return pFnc == ((const __Slot7F<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t, p7t );
     };
@@ -1186,6 +1360,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal7<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot7<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t> *pCb;
     };
@@ -1232,7 +1417,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2, p3, p4, p5, p6, p7 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -1269,6 +1454,7 @@ namespace Bu
         virtual ~_Slot8() { }
         virtual ret operator()( p1t p1, p2t p2, p3t p3, p4t p4, p5t p5, p6t p6, p7t p7, p8t p8 )=0;
         virtual _Slot8<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> *clone() const=0;
+        virtual bool operator==( const _Slot8<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t, typename p3t, typename p4t, typename p5t, typename p6t, typename p7t, typename p8t>
@@ -1289,6 +1475,12 @@ namespace Bu
             return new __Slot8<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot8<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> &rhs ) const
+        {
+            const __Slot8<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> &rrhs = (const __Slot8<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t );
@@ -1312,6 +1504,11 @@ namespace Bu
             return new __Slot8F<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot8<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> &rhs ) const
+        {
+            return pFnc == ((const __Slot8F<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t );
     };
@@ -1341,6 +1538,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal8<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot8<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t> *pCb;
     };
@@ -1387,7 +1595,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2, p3, p4, p5, p6, p7, p8 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -1424,6 +1632,7 @@ namespace Bu
         virtual ~_Slot9() { }
         virtual ret operator()( p1t p1, p2t p2, p3t p3, p4t p4, p5t p5, p6t p6, p7t p7, p8t p8, p9t p9 )=0;
         virtual _Slot9<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> *clone() const=0;
+        virtual bool operator==( const _Slot9<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t, typename p3t, typename p4t, typename p5t, typename p6t, typename p7t, typename p8t, typename p9t>
@@ -1444,6 +1653,12 @@ namespace Bu
             return new __Slot9<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot9<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> &rhs ) const
+        {
+            const __Slot9<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> &rrhs = (const __Slot9<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t );
@@ -1467,6 +1682,11 @@ namespace Bu
             return new __Slot9F<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot9<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> &rhs ) const
+        {
+            return pFnc == ((const __Slot9F<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t );
     };
@@ -1496,6 +1716,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal9<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot9<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t> *pCb;
     };
@@ -1542,7 +1773,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2, p3, p4, p5, p6, p7, p8, p9 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
@@ -1579,6 +1810,7 @@ namespace Bu
         virtual ~_Slot10() { }
         virtual ret operator()( p1t p1, p2t p2, p3t p3, p4t p4, p5t p5, p6t p6, p7t p7, p8t p8, p9t p9, p10t p10 )=0;
         virtual _Slot10<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> *clone() const=0;
+        virtual bool operator==( const _Slot10<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> &rhs ) const=0;
     };
     
     template<typename cls, typename ret, typename p1t, typename p2t, typename p3t, typename p4t, typename p5t, typename p6t, typename p7t, typename p8t, typename p9t, typename p10t>
@@ -1599,6 +1831,12 @@ namespace Bu
             return new __Slot10<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t>( pCls, pFnc );
         }
     
+        virtual bool operator==( const _Slot10<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> &rhs ) const
+        {
+            const __Slot10<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> &rrhs = (const __Slot10<cls, ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> &)rhs;
+            return pCls == rrhs.pCls && pFnc == rrhs.pFnc;
+        }
+    
     private:
         cls *pCls;
         ret (cls::*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t );
@@ -1622,6 +1860,11 @@ namespace Bu
             return new __Slot10F<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t>( pFnc );
         }
     
+        virtual bool operator==( const _Slot10<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> &rhs ) const
+        {
+            return pFnc == ((const __Slot10F<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> &)rhs).pFnc;
+        }
+    
     private:
         ret (*pFnc)( p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t );
     };
@@ -1651,6 +1894,17 @@ namespace Bu
             return *this;
         }
     
+        bool operator==( const Signal10<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> &rhs ) const
+        {
+            if( pCb == rhs.pCb )
+            return true;
+            if( pCb == NULL || rhs.pCb == NULL )
+            return false;
+            if( typeid(pCb) != typeid(rhs.pCb) )
+            return false;
+            return *pCb == *rhs.pCb;
+        }
+    
     private:
         _Slot10<ret, p1t, p2t, p3t, p4t, p5t, p6t, p7t, p8t, p9t, p10t> *pCb;
     };
@@ -1697,7 +1951,7 @@ namespace Bu
                 else
                     return (*i)( p1, p2, p3, p4, p5, p6, p7, p8, p9, p10 );
             }
-            throw Bu::ExceptionBase("Empty SignalList with non-void return value called.");
+            throw Bu::SignalException("Empty SignalList with non-void return value called.");
         }
     };
     
diff --git a/src/stable/archive.h b/src/stable/archive.h
index f98402d..5c3a055 100644
--- a/src/stable/archive.h
+++ b/src/stable/archive.h
@@ -129,7 +129,7 @@ namespace Bu
     private:
         Stream &rStream;
         uint32_t nNextID;
-        Hash<uint32_t,uint32_t> hPtrID;
+        Hash<uint32_t,ptrdiff_t> hPtrID;
         Hash<uint32_t,List<void **> > hPtrDest;
         Hash<Bu::String, Variant> hProps;
     };
diff --git a/src/stable/list.h b/src/stable/list.h
index b7fb1d1..0b6329c 100644
--- a/src/stable/list.h
+++ b/src/stable/list.h
@@ -250,6 +250,11 @@ namespace Bu
             return *this;
         }
 
+        MyType &operator-=( const value &v )
+        {
+            return erase( v );
+        }
+
         MyType &operator+=( const MyType &src )
         {
             _hardCopy();
diff --git a/src/tests/signal.cpp b/src/tests/signal.cpp
index 93519fa..62e8bd5 100644
--- a/src/tests/signal.cpp
+++ b/src/tests/signal.cpp
@@ -40,6 +40,8 @@ int main()
 	lMaths += slot(Double);
 	lMaths += slot(Square);
 	println("Math'd %1 = %2").arg( 5 ).arg( lMaths(5) );
+    lMaths -= slot(Square);
+	println("Math'd %1 = %2").arg( 5 ).arg( lMaths(5) );
 
 	return 0;
 }
-- 
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