[boost] [signals] making Assignable and CopyConstructable

From: Rebooted (rebooted_at_[hidden])
Date: 2005-07-26 15:45:06

In my program I need to store a map of signals, with an integer id
corresponding to a signal in the map.

Objects can request to be informed when another a specific message is
emitted by connecting a member function to the signal in this map at
the index corresponding to that message type.

However, since boost::signal inherits noncopyable, it cannot be stored
in a map. What are the reasons for signal being noncopyable, and is
there any chance this could be changed in the future?