Re: [Boost-users] multi_array - problems with resize

From: Ronald Garcia (garcia_at_[hidden])
Date: 2006-03-07 21:34:29

Hi Craig,

Sorry for the delay in this reply.  Yes, for no good reason I did not  
supply a collection-based interface for resize.  I have implemented  
such an interface and checked it into CVS.  So the following should  
work (assuming that A is a 3-dimensional array):

     boost::array<int,3> new_extents = {{4,3,2}};
     A.resize(new_extents);

Let me know if this works for you.

ron

On Feb 20, 2006, at 4:42 AM, Craig Glasgow wrote:

> Hi,
>
> I'm trying to write serialization load and save methods for multi- 
> array. For the load method I have a function with
> the prototype:
>
>
>
> template<class Archive, class T, std::size_t NumDims>
>
> inline void load(Archive& ar, boost::multi_array<T, NumDims>& arr,
> const unsigned int file_version)
>
> This function gets called when the array is serialized and should  
> populate the multi-array arr. However this requires re-sizing arr  
> which apparently can only be done using the extents construct e.g.   
> arr.resize(boost::extents[3][4][2]), but I want to be able to do  
> this for an arbitray number of dims as with reshape.
>
> Any idea how this can be done?
>
> Regards
>
> Craig_______________________________________________
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