On Fri, 2013-07-26 at 08:06 -0400, Paul Davis wrote: > > > > On Fri, Jul 26, 2013 at 7:03 AM, Murray Cumming <murr...@murrayc.com> > wrote: > C+11 has std::function<> which is a bit like sigc::slot, > though C++11 > doesn't have anything like sigc::signal<>. I played with that > here: > > http://www.murrayc.com/permalink/2013/07/08/c-in-glom-shared_ptr-and-slotsfunctions/ > > I've noticed that std::function<> works with libsigc++, as in > the code > below, but I wonder why it works. Can anyone explain? > > > > I have used boost::function with sigc++, and my guess when it worked > is that sigc++::slot (like boost slots and other similar libraries, > including our own that we use for ardour) only requires an > operator()() (i.e. functor invocation), which std::function also > provides. last time i looked, sigc::slot is heavily templated, so any > class that provides the required (minimal) API will work. > > > what made you expect that it would *not* work?
Because the signals' connect() function seems to take specifically sigc::slot: https://developer.gnome.org/libsigc ++/unstable/classsigc_1_1signal7.html#adc55ac9b0f935fd87a67904022e03cb2 But I haven't looked at it enough detail. -- Murray Cumming murr...@murrayc.com www.murrayc.com www.openismus.com _______________________________________________ libsigc-list mailing list libsigc-list@gnome.org https://mail.gnome.org/mailman/listinfo/libsigc-list
