RE: [boost] Pointers to functors with boost::function?

From: Yitzhak Sapir (yitzhaks_at_[hidden])
Date: 2002-05-23 05:35:15

I tried all the options I described, including changing the function_template.hpp to see that it works.  boost::ref is a class generator that creates a reference wrapper.  operator() is not defined for the wrapper.  Even if I wanted to define it I wouldn't know what return type to declare for this operator() using current C++ constructs and without assuming the class being wrapped defines a return_type or something similar.

> ----- Original Message ----- 
> From: "Yitzhak Sapir" <yitzhaks_at_[hidden]>
> 
> > Using boost::thread(boost::ref(*this)) is not possible 
> because ref() 
> > cannot know which return types to define for possible operator()
> > calls.
> 
> Have you tried it? Because I don't think boost::ref has to 
> know this at
> all. boost::function0<void> can be constructed from ANY 
> object for which
> the code line: "object();" is legal. (This is all 'as far as I know'.)
> 
> Dirk Gerrits