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Subject: Re: [boost] base64?
From: Robert Ramey (ramey_at_[hidden])
Date: 2017-07-24 17:21:53

On 7/24/17 9:54 AM, Roger Leigh via Boost wrote:
> On 24/07/17 16:28, Vinnie Falco via Boost wrote:
>> On Mon, Jul 24, 2017 at 8:27 AM, Vinnie Falco <vinnie.falco_at_[hidden]>
>> wrote:
>>> On Mon, Jul 24, 2017 at 8:24 AM, Greger via Boost
>>> <boost_at_[hidden]> wrote:
>>> I also see this note:
>>>> It is available for a moderate compensation. Let me know by
>>>> email and I will send you the source.
>> Is this library open source or commercial in nature? What license is
>> it furnished under? Also, how is this better than the numerous other
>> base64 libraries (which are free) such as this one:
>> <>
> Or
> which I probably wrote based on a similar source when I realised the
> Boost base64 support was broken and needed a quick implementation. It
> avoids allocation issues by allowing the use of iterators including
> back_inserter.
> We already have base64 conversion in
> boost/archive/iterators/*base64*.hpp. It works but screws up the
> whitespace
> (
> It's a shame the various adapters don't work properly together; is
> there any prospect of this being fixed, or is the existing design simply
> too inflexible to make a proper base64 implementation?

I'm guessing it would be pretty easy to fix. I base this on the design
which is built up as a stack of iterator pairs. This is documented in
the serialization library under

This is used for the base64 stuff in the serialization library which as
far as I know is correct. That doesn't include adding on padding at the
end - which maybe it should.

In any case making a stand along base64 component would require
understanding the issues, making a small variation on the one in the
library, make a test and adding it the test suite and making a
commitment to support it in the future. I just haven't had the
motivation to do that - even though I think the code and design are very
convenient and flexible. Result is decent performance as well. FYI it
was made before boost ranges and can be considered a demonstration of
the validity of using the range idea.

Robert Ramey

> Regards,
> Roger
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