2004-06-10 v. 0.6

• now signals can be copied and cloned ;

• the internal storage is no more a policy, therefore it can't be customized anymore ; if this hurts you, let me know ;

• code cleanup (all methods are lower-case), added some comments usable by Doxygen (http://www.doxygen.org) ;

• it's now possible to parse the slots connected to a signal, using usual STL (Standard Template Library) syntax (see advanced documentation) ;

• it's now possible (and easy I hope) to chain signals, i.e. to connect a signal to another signal (both must be of same type) ;

• added some facilities to connect slots in classes that don't inherit from SlotsSetBase (see advanced documentation) ;

• compiles fine with Intel compiler, icc ;

• TODO :

  • threads, threads, threads...

  • better (faster) storage here and there ;

  • string-based (dis)connections, ala Qt ;

  • adaptors to (dis)connect functions with different number of parameters than the signal type (idea borrowed from libsigc++) ;

  • provide a way to know the sender of a signal ;

  • give back a kind of identifier for a connection, which can be used to disconnect a slot (this would probably be the slot type) ;

  • ...and more...

2004-05-23 v. 0.5.1

• Changed template parameters names, to fix an error given by gcc 3.3 under MacOSX - thanks to Ralph Brorsen, you found and solved the problem.

2004-05-20 v. 0.5

• the uniqueness of a connection is now an option (enabled by default) ;

• added disconnectAll() methods in signal classes and SlotsSetBase ;

• better Qt-compatibility (avoid some remaining clashes with Qt's macros) ;

• improved speed by using a more clever storage class for slots in signals ;

• updated documentation, added an “advanced” page, and more detailed benchmarks ;

• added many type-traits-like class to avoid useless parameters copying (for all basic types) ;

• beginning of a mean to establish connections using strings, as Qt does (which allows to make connections based on external informations, such as a configuration text file) ;

• TODO :

  • thread-safety !!

  • reduce the need to inherit from SlotsSetBase for classes containing slots ;

  • improve storage of connected signals in SlotsSetBase ;

  • go further in string-based connections ;

  • ...mail me for more !

2004-02-03 v. 0.4

• now (almost) all methods in signal classes return an error code ;

• to provide compatibility with Qt, the emit() method has been renamed to run() ;

• added a run_if() method, which can interrupts the signal emission according to the boolean return value of a predicate ;

• the storage of slots in a signal can now be tweaked by a policy, see <slotsig_storage_policies.h> for more details ;

• the default storage is now a vector, which proved to be much faster than the previously-used set ;

• added some sanity checks : don't allow to connect or disconnect a slot when a signal is being emitted, don't allow to emit a signal while it is being emitted.

• TODO :

  • make connections faster ;

  • improve the trick used to avoid useless temporary instances duplication when sending parameters (for now it just nicely specialize for int) ;

  • check and fix for other compilers ;

  • connection to a signal, to a functor ;

  • what about some thread-safety ?

  • ...what more ?

2003-11-22 v. 0.3

• complete rewrite : simpler code, hopefully more easily usable ;

• new namespace and classes names ;

• implemented features so far :

  • connecting a signal to either a global function or a class's method ;

  • handles the case when the class's method is const-qualified ;

  • correctly connect to inherited methods not redefined in subclass ;

  • should react nicely when a class's instance or a signal instance is destroyed.

• last but not least, a Python script is provided to generate support for as many parameters as you might want ;

• missing features :

  • connect a signal to a signal ;

  • direct connection to functors ;

  • allowing to know the signal's sender ;

  • trying to avoid signal/slot ping-pong (infinite recursion) ;

  • stop the signal emission when something critical happens (the slots set is changed, the signal destroyed, whatever) ;

  • ...your idea here !

2003-06-09 v. 0.2

• added support for const-qualified class methods ;

• enabled connecting a signal to any class method without explicit creation of a slot clSlotInClass (TODO : what if the class holding the method is destroyed ?) ;

• some changes to get a more robust code (added some checks for null-pointers) ;

• added verbosity macros, to get messages about what is done internally ;

• tested using Valgrind ;

• modified tutorial to reflect previous changes.

2003-06-03 v. 0.1

Initial public release.