Re: [Boost-users] multi_array, resize and default constructable

From: Dr Johann A. Briffa (j.briffa_at_[hidden])
Date: 2008-08-21 04:44:30

gast128 wrote:
> Dear all,
>
> from the documentation I read that if a multi_array is reshaped new elements 
> are default constructed:
>
> "Resizing an Array
> The boost::multi_array class provides an element-preserving resize operation.
> ...Any new elements in the array are default constructed..."
>
> It is thus not possible providing a default fill element?
>   
The default fill element is the default value of the type. For example, 
if you have a multi_array of doubles, on array construction (or resize) 
all new elements will be 0.0. You cannot change this value without 
changing the default value of the underlying type.
Johann