Re: [Boost-users] templated class member

From: Jeffrey Holle (jeffreyholle_at_[hidden])
Date: 2007-05-09 12:53:21

Boost::variant if you want your variable to hold just one of the types, 
and hopefully you know what type is holds.
You have to use a variant visitor to access it if you don't.
Attempts to use get<int> when the type isn't castable to it will throw 
an exception.

Ares Lagae wrote:
> I have a list of fundamental types (known at compile time). For each of
> these types I want to declare a templated member in a class.
> 
> So, instead of
>  
> class foo {
> private:
>   int int_variable;
>   double double_variable;
>   ... /* rest of types */
> };
> 
> I want something like
> 
> class foo {
> private:
>   variable_list<int, double, ... /* rest of types */> variable;
> };
> 
> and then access "foo::variable" with a template-like syntax.
> E.g. "variable.get<int>()".
> 
> Does anyone have any idea how I can accomplish this?
>