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From: Peter Dimov (pdimov_at_[hidden])
Date: 2005-11-27 14:18:27

Robert Ramey wrote:
> Peter Dimov wrote:
>> When the author of X that has two fields x and y wants to serialize
>> it into _any_ archive, he just "says" save(x) and save(y) to the
>> archive.
>> However, the author of Y that contains an array currently can't just
>> say save_array(a) to the archive, because save_array is not part of
>> the current vocabulary. He needs to say save(a[0]), save(a[1]), ...,
>> save(a[n-1]).
> he needs to say save(a) that is ar << a. In any of the proposals
> the correct override will be invoked.

This only works for C-style arrays with the size fixed at compile time.
Think about how one would write "save" for the following:

template<class T> struct my_array
    T * data_;
    unsigned size_;

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