diff --git a/include/chaiscript/dispatchkit/bootstrap_stl.hpp b/include/chaiscript/dispatchkit/bootstrap_stl.hpp
index 06f3ce7..bbf0cce 100644
--- a/include/chaiscript/dispatchkit/bootstrap_stl.hpp
+++ b/include/chaiscript/dispatchkit/bootstrap_stl.hpp
@@ -158,7 +158,7 @@ namespace chaiscript
     template<typename ContainerType>
     ModulePtr container_type(const std::string &/*type*/, ModulePtr m = ModulePtr(new Module()))
     {
-      m->add(fun<size_t (ContainerType::*)() const>(&ContainerType::size), "size");
+      m->add(fun(boost::function<int (const ContainerType *)>(&ContainerType::size)), "size");
       m->add(fun<bool (ContainerType::*)() const>(&ContainerType::empty), "empty");
       m->add(fun<void (ContainerType::*)()>(&ContainerType::clear), "clear");
 
@@ -319,7 +319,8 @@ namespace chaiscript
     template<typename ContainerType>
     ModulePtr unique_associative_container_type(const std::string &/*type*/, ModulePtr m = ModulePtr(new Module()))
     {
-      m->add(fun<size_t (ContainerType::*)(const typename ContainerType::key_type &) const>(&ContainerType::count), "count");
+//      m->add(fun<size_t (ContainerType::*)(const typename ContainerType::key_type &) const>(&ContainerType::count), "count");
+      m->add(fun(boost::function<int (const ContainerType *, const typename ContainerType::key_type &)>(&ContainerType::count)), "count");
 
       return m;
     }
@@ -412,13 +413,16 @@ namespace chaiscript
       }
       m->add(fun(&String::push_back), push_back_name);
 
-      typedef typename String::size_type (String::*find_func)(const String &, typename String::size_type) const;
-      m->add(fun(static_cast<find_func>(&String::find)), "find");
-      m->add(fun(static_cast<find_func>(&String::rfind)), "rfind");
-      m->add(fun(static_cast<find_func>(&String::find_first_of)), "find_first_of");
-      m->add(fun(static_cast<find_func>(&String::find_last_of)), "find_last_of");
-      m->add(fun(static_cast<find_func>(&String::find_first_not_of)), "find_first_not_of");
-      m->add(fun(static_cast<find_func>(&String::find_last_not_of)), "find_last_not_of");
+      typedef typename String::size_type (String::*find_func_ptr)(const String &, typename String::size_type) const;
+
+      typedef boost::function<int (const String *, const String &, int)> find_func;
+
+      m->add(fun(find_func(static_cast<find_func_ptr>(&String::find))), "find");
+      m->add(fun(find_func(static_cast<find_func_ptr>(&String::rfind))), "rfind");
+      m->add(fun(find_func(static_cast<find_func_ptr>(&String::find_first_of))), "find_first_of");
+      m->add(fun(find_func(static_cast<find_func_ptr>(&String::find_last_of))), "find_last_of");
+      m->add(fun(find_func(static_cast<find_func_ptr>(&String::find_first_not_of))), "find_first_not_of");
+      m->add(fun(find_func(static_cast<find_func_ptr>(&String::find_last_not_of))), "find_last_not_of");
 
       return m;
     }
diff --git a/include/chaiscript/language/chaiscript_prelude.hpp b/include/chaiscript/language/chaiscript_prelude.hpp
index 3476d6e..e73084e 100644
--- a/include/chaiscript/language/chaiscript_prelude.hpp
+++ b/include/chaiscript/language/chaiscript_prelude.hpp
@@ -282,27 +282,27 @@ def zip(x, y) { \n\
 }\n\
 # Returns the position of the second value string in the first value string\n\
 def string::find(substr) : is_type(substr, "string") { \n\
-  int(find(this, substr, size_t(0))); \n\
+  int(find(this, substr, 0)); \n\
 } \n\
 # Returns the position of last match of the second value string in the first value string\n\
 def string::rfind(substr) : is_type(substr, "string") { \n\
-  int(rfind(this, substr, size_t(-1))); \n\
+  int(rfind(this, substr, -1)); \n\
 } \n\
 # Returns the position of the first match of elements in the second value string in the first value string\n\
 def string::find_first_of(list) : is_type(list, "string") { \n\
-  int(find_first_of(this, list, size_t(0))); \n\
+  int(find_first_of(this, list, 0)); \n\
 } \n\
 # Returns the position of the last match of elements in the second value string in the first value string\n\
 def string::find_last_of(list) : is_type(list, "string") { \n\
-  int(find_last_of(this, list, size_t(-1))); \n\
+  int(find_last_of(this, list, -1)); \n\
 } \n\
 # Returns the position of the first non-matching element in the second value string in the first value string\n\
 def string::find_first_not_of(list) : is_type(list, "string") { \n\
-  int(find_first_not_of(this, list, size_t(0))); \n\
+  int(find_first_not_of(this, list, 0)); \n\
 } \n\
 # Returns the position of the last non-matching element in the second value string in the first value string\n\
 def string::find_last_not_of(list) : is_type(list, "string") { \n\
-  int(find_last_not_of(this, list, size_t(-1))); \n\
+  int(find_last_not_of(this, list, -1)); \n\
 } \n\
 def string::ltrim() { \n\
   drop_while(this, fun(x) { x == ' ' || x == '\t' }); \n\