Re: [boost] Re: Serialization library - submission #5 and request

From: Matthias Troyer (troyer_at_[hidden])
Date: 2002-09-11 09:20:27

Hi Robert,

On Tuesday, Sep 10, 2002, at 20:29 US/Pacific, Robert Ramey wrote:
>> Robert, I appreciate all your efforts in writing this library.
>> However, while different formats are now supported, I mentioned
>> some time ago that a specialization for writing C-style arrays of
>> the basic data types is important for good performance. When
>> (de)serializing a matrix of 100'000'000 doubles I do not want to
>> call (in the worst case) a virtual function  100'000'00 times.
>
> This issue is explictly addressed by a section of the reference manual 
> under
> the section of serialization of large numbers of small objects.  I 
> feel that
> your concerns are more than adequatly addressed here.

Maybe I'm just too stupid to see it, but from looking at the
documentation I can't see how, e.g. I would write an oarchive
that calls

xdr_double(...)

for a single double value

xdr_vector(...,&xdr_double)

for an array of doubles. As I see it, and have implemented it in my
serialization library that I would love to replace by a boost one,
we need additional virtual functions for (de)serializing arrays of
the basic data types.

Please tell me if I am wrong and how to manage this using your library.

Best regards,

Matthias