Re: [Boost-users] [Function] Encapsulated inside a class, won't initialize.

Subject: Re: [Boost-users] [Function] Encapsulated inside a class, won't initialize.
From: Jeff Flinn (TriumphSprint2000_at_[hidden])
Date: 2008-10-13 09:20:43

Ravey Alexandre wrote:
> 
> Hi there,
> 
> I'm using boost::function defined private inside a class and then assign 
> a function comming from another boost::function. But it don't work.
> 
> A little code may help understand my pretty bad explanation.
> #######
>   class C
>   {
>     public:
>       void Bind(boost::function<void()> f);
>     private:
>       boost::function<void()> func;
>   };
> 
>   void C::Bind(boost::function<void()
>  > f)
>   {
>     func = f;  //Compile, but raise an access violation.
>   }
> #######
> 
> The problem seems obvious to me, func si not initialized correctly and 
> swap() fail.
> 
> But I can't figure out how to make this work.

Can you provide a minimally complete compilable example that exhibits 
the problem. I think the problem lies in the code that you don't show. 
For example your instance of Class C may not be properly constructed, or 
the function f has bound arguments that do not copy/assign properly.

Jeff