i all,
So, I found myself trying to write the most convoluted lambda
exploiting code possible today and I ran into a couple of
limitations. :-) Don't worry, this is purely for my own
edification - I don't have a requirement for anything this
over the top. :-)
1) There's no way to compose a zero-parameter functor into
a sigc::group call. I ended up doing:
sigc::group(sigc::hide(&foo), sigc::_1) to achive the desired
effect.
2) It doesn't seem to be possible to do the following or an equivalent:
void foo(char a, int b, bool c);
void bar(sigc::slot<char> baz, int d);
sigc::group(sigc::ptr_fun(&bar),
sigc::bind(sigc::ptr_fun(&foo),
sigc::_1, sigc::_2),
sigc::_3)(1, true, 3);
So, I want to bind the selectors as specific parameters
but leave the rest untouched so the final slot conforms
to the expected signature.
I can't use sigc::group because it doesn't seem to support binding
the selector to a specific parameter and sigc::bind doesn't understand
a selector if one is passed instead of an actual value.
Yes, it's all very silly, but if we've gone this far... :-)
--phil
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