libsigc++: libsigc++ (typesafe callback system for standard C++) libsigc++: libsigc++: libsigc++ implements a typesafe callback system for standard C++. libsigc++: It allows you to define signals and to connect those signals to any libsigc++: callback function, either global or a member function, regardless libsigc++: of whether it is static or virtual. libsigc++: It also contains adaptor classes for connection of dissimilar libsigc++: callbacks and has an ease of use unmatched by other C++ callback libsigc++: libraries. Libsigc++ is licensed under the GNU Library General libsigc++: Public License, LGPL. libsigc++: