[Boost-users] [value_initialized] Non-default constructors

From: Edward Diener (eldiener_at_[hidden])
Date: 2008-05-19 15:18:32

I have a class template, templated on type T, which I need to hold as a 
data value in the class. I use value_initialized for this type T 
effectively, and the value gets value initialized correctly when the 
default constructor of my class is used.

If, however, I add a second constructor to my class which takes a T, for 
initializing my 'value_initialized<T> data' value, things do not work as 
well. Obviously I can still value initialize my data value, as in my 
default constructor, and then use 'boost::get(data) = arg;' to set the 
value of my value initialized variable. But this will not work if the 
type T is a top-level const, whereas I do want to initialize the data 
value in this case to the T arg passed into my second constructor.

Is there a good solution to this which I have overlooked ?