template<typename T>
typename T::mapped_type &get_item(T &map, const typename T::key_type &key)
{
- typename T::iterator i = map.find(key);
+ auto i = map.find(key);
if(i==map.end())
throw key_error(key);
template<typename T>
const typename T::mapped_type &get_item(const T &map, const typename T::key_type &key)
{
- typename T::const_iterator i = map.find(key);
+ auto i = map.find(key);
if(i==map.end())
throw key_error(key);
return i->second;
}
+template<typename D, typename T>
+D *get_item(const T &map, const typename T::key_type &key)
+{
+ return dynamic_cast<D *>(get_item(map, key));
+}
+
template<typename T>
-const typename T::iterator insert_unique(T &map, const typename T::key_type &key, const typename T::mapped_type &item)
+typename T::iterator insert_unique(T &map, const typename T::key_type &key, const typename T::mapped_type &item)
{
if(map.count(key))
throw key_error(key);
- return map.insert(typename T::value_type(key, item)).first;
+ return map.insert(std::make_pair(key, item)).first;
+}
+
+template<typename T>
+void remove_existing(T &map, const typename T::key_type &key)
+{
+ if(!map.count(key))
+ throw key_error(key);
+
+ map.erase(key);
}
} // namespace Msp