Re: [Boost-users] encoding data when serializing

Subject: Re: [Boost-users] encoding data when serializing
From: Robert Ramey (ramey_at_[hidden])
Date: 2012-03-09 13:54:45

Sean Farrow wrote:
> What is the name of the serialization codecvt class,

lol - sorry you'll have to seach the source code.

> and does the
> serialization library use utf8 chars even is you use wide char
> archives?

yes - again look at the code.

> Cheers
> San.

Robert Ramey

>
> -----Original Message-----
> From: boost-users-bounces_at_[hidden]
> [mailto:boost-users-bounces_at_[hidden]] On Behalf Of Robert
> Ramey
> Sent: 09 March 2012 16:55
> To: boost-users_at_[hidden]
> Subject: Re: [Boost-users] encoding data when serializing
>
> Sean Farrow wrote:
>> What does the facet need to do?
>> Cheers
>> Sean.
>>
>
> The facet transforms a stream of characters (wide or narrow) into
> another stream of characters (wide or narrow) and vice-versa.  Once
> built it is threaded into the standard library stream via some
> standard library calls.  This is a general mechanism for tranforming
> stream i/o from one representation to another.
>
> For more information study the documentation for the standard library.
>
> Also for an example, you can study the serialization library source
> code which uses this functionality to transform wide char i/o to
> utf-8 i/o.  The library also includes a codecvt facet for doing this
> which might be used as an example.
>
> Basically, the designers of the C++ standard i/o forsaw exactly this
> situation and made provision for it.  It's all in there, you just
> have to use it.
>
> Note that this is note an issue having anything to do with the
> serialization library.  It only seems that way because the
> serialization library uses stream i/o and hence will inherit any
> features of the stream which it uses.
>
> If one had nothing else to do, he could make a boost library to help
> make and compose (stack) codecvt facets.  Much (or all) of this
> functionality might overlap with the boost io streams library. Or it
> might not.  I've only looked at the boost io streams library enough
> to know that it doesn't use codecvt facets.  I asked at one time why
> this was so - but didn't get any response.
>
> Robert Ramey
>
>
>
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