Re: [boost] Interest in a container which can hold multiple data types?

Subject: Re: [boost] Interest in a container which can hold multiple data types?
From: Thijs (M.A.) van den Berg (thijs_at_[hidden])
Date: 2015-05-05 02:31:43

>> 
>> tuple_vector<Point, Line, Rectangle, Circle> shapes;
>> shapes.push_back(Point{1.0, 1.0} );
> 
> This is neat, but it' not quite the same thing. Unlike std::vector<boost::any>, your tuple_vector does not organize objects into strictly linear arrangement. Using your example, there is no way to draw shapes in the order they were inserted into container.
> 
Good point! So it loses overall ordering, only preservers it at the type level. The reason is that objects gets stored in linear memory per type.