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Subject: [boost] [signals2] Uncombined signal
From: Ivan Le Lann (ivan.lelann_at_[hidden])
Date: 2013-04-10 19:44:09


I have a project where I use boost::signals2 in the spirit of the "Signal Return Values (Advanced)" section of the tutorial.
That is, I have signals roughly equivalent to :

boost::signals2::signal<float (), maximum<float> > sig; // slots produce values accumulated by the combiner

Problem comes when I want multiple combiners on the same slots. Especially combiners of different types :
You need to duplicate signals, and you need your connection setup code to know about used combiners.

IMHO, having a basic signal class with no combiner makes sense.
Attached is a POC patch to version 1.50, to add to boost::signals2::signal the method :


(in boost/signals2/detail/signal_template.hpp)

>From there, I think one could use any algorithm/accumulator directly on the signal.all() result.
Implementation left aside, any feedback on this ?


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