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List: boost
Subject: Re: [boost] [json] [text] Multiple, custom string tyypes
From: Vinnie Falco via Boost <boost () lists ! boost ! org>
Date: 2020-06-17 1:31:18
Message-ID: CA+EzHGcxsjWKTAAeqyPFM4XU+oJsGBEm5ngUhxKPD7amU0mfYg () mail ! gmail ! com
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On Mon, Jun 15, 2020 at 4:18 AM Andrzej Krzemienski <akrzemi1@gmail.com> wrote:
> It should be possible to parametrize Boost.JSON with the string type.
Another problem with doing this, is that it breaks the invariant of
Boost.JSON's DOM value type:
* All child elements in a DOM will inherit the allocator of the root element.
If we allow user-defined strings, first they probably won't work with
storage_ptr (Boost.JSON's custom allocator container interface) and
second they can break the invariant.
My goal is for boost::json::value to be suited as a vocabulary type.
Allowing customization works against that. An example of an existing
useless customization point would be char traits in basic_string
and/or basic_string_view. I don't want to create more.
Thanks
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