Hi Peter
Thanks for looking at this!
I must admit I don't currently see why this happens, I'll probably have
to produce a minimal repro and ask bind experts for help.
It happens because ultimately you produce a bind expression such as
boost::bind( pImpl, this, ..., boost::ref( value ) )
and the ref is interpreted by bind as a reference to 'value'. But your
Arg1 remains a reference_wrapper. You'll probably need to convert ArgN
parameters that are of the form reference_wrapper<X> to X& before
instantiating create_processor_implN.
Ok, lets see whether I understand this correctly:
#include
#include
class Object : public boost::noncopyable {};
void func1(Object &) {}
void func2(boost::reference_wrapper<Object>) {}
int main()
{
Object value;
boost::bind(&func1, boost::ref(value))(); // 1: compiles
boost::bind(&func2, boost::ref(value))(); // 2: doesn't
return 0;
}
2 doesn't compile because bind internally assumes that the target function
accepts a T & parameter for each reference_wrapper<T> argument, correct?
If so, then I guess I should use boost::unwrap_reference<Arg1>::type instead
of Arg1 to instantiate create_processor_impl1.
Thanks & Regards,
--
Andreas Huber
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