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RE: [boost] Re: Any interest in adding unicode support to boost?
by Stefan Seefeld 20 Oct '04

20 Oct '04

> From: Peter Dimov [mailto:pdimov@mmltd.net] > Sent: October 20, 2004 15:52 > To paraphrase, unnecessary parameterization is the root of most evil > nowadays. Parameters are a liability, not an asset. I'd sign that any day ! However, the primary goal behind my XML wrapper library (which, by the way, I already discussed here on the boost list to see whether there was enough interest into a general purpose C++ API for dealing with XML...) was to define an API, and to provide a sample implementation as a proof-of-concept. The fact that this particular implementation I'v been using is based on utf-8 should be transparent (though accessible). Regards, Stefan

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RE: [boost] Re: Any interest in adding unicode support to boost?
by Stefan Seefeld 20 Oct '04

20 Oct '04

> From: Erik Wien [mailto:wien@start.no] > Sent: October 20, 2004 14:37 > > - Why would the user want to change the encoding? Especially between > > UTF-16 and UTF-32? > > Well... Different people have different needs. If you are > mostly using ASCII > characters, and require small size, UTF-8 would fit your > bill. If you need > the best general performance on most operations, use UTF-16. > If you need > fast iteration over code points and size doesn't matter, use UTF-32. another argument is legacy / compatibility. I'v written an XML library in C++ that essentially wraps a C library (libxml2 for the insiders), and so I'd like to avoid unnecessary string copies when passing data around. While the inside uses utf-8, I want to make the wrapper API adaptive to user-side unicode APIs. Thus the unicode type has become a template parameter, and conversion is being done by a trait class. Regards, Stefan

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Re: [boost] http://www.boost.org/libs/utility/iterator_adaptors.htm
by JOAQUIN LOPEZ MU?Z 20 Oct '04

20 Oct '04

This is corrected in RC_1_32 (the link forwards to Boost.Iterator docs, which is (if I'm not wrong) preferred to old iterator adaptors.) ----- Mensaje original ----- De: "Neal D. Becker" <ndbecker2(a)verizon.net> Fecha: Miércoles, Octubre 20, 2004 7:26 pm Asunto: [boost] http://www.boost.org/libs/utility/iterator_adaptors.htm > Bad link on http://www.boost.org/libs/utility -> iterator_adaptors.htm > > _______________________________________________ > Unsubscribe & other changes: > http://lists.boost.org/mailman/listinfo.cgi/boost Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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http://www.boost.org/libs/utility/iterator_adaptors.htm
by Neal D. Becker 20 Oct '04

20 Oct '04

Bad link on http://www.boost.org/libs/utility -> iterator_adaptors.htm

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[thread] static builds for bcc32
by Russell Hind 20 Oct '04

20 Oct '04

The latest boost thread builds static libs for bcc32 on win32, but when I link, my app is still looking for the dynamic lib even if I'm set to use static libs? Can the static thread lib be used with bcc32? If not can it be disabled from the build so people aren't tempted to use try and use it? Thanks Russell

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Re: RE: [boost] Library Proposal: database (boost::db)
by JOAQUIN LOPEZ MU?Z 20 Oct '04

20 Oct '04

Hi Brian, ----- Mensaje original ----- De: Brian Braatz <brianb(a)rmtg.com> Fecha: Viernes, Octubre 15, 2004 6:56 pm Asunto: RE: [boost] Library Proposal: database (boost::db) [...] > > I am currently going down this exact path and wanted to share what > I ran > into: > > 1- Boost does not have a 2dim "Table<>" - i.e. a Recordset > 2- Boost.multi_index only works with concrete structures > I would love it if I could use that to make a dynamic Table\ > recordset What do you mean by concrete structures? > 3- I have had to build my own Table<> by internally using > boost.multiindex Do you mean, you have actually built a Table<> class using Boost.MultiIndex? [...] > I believe boost is missing a "recordset" analolgy and I would hope > thatwhatever is created is not "struct only" like > boost.multi_index. (don't > get me wrong I LOVE the multi_index - it just doesn't work > dynamically) Well, in the past I thought about what a dynamic_multi_index_container (with run-time specification of indices) could look like: the implementation internals are not hard to solve with the same framework as Boost.MultiIndex, it is the interface that I don't have a clear idea about. Also, I don't envision a clear usage scenario for this, and there are RTTI-like issues involved as well (what should get<N>() return?) If you'd care to sketch what kind of dynamic multi_index you have in mind (from the user point of view) maybe we can come out with some solid design to implement in future releases of the lib. My intention is to stay away from relational stuff, but I'll go for a dynamic container if it can be made general purpose. On another topic, have you considered Arkadiy's RTL as another source of ideas/synergies? Seems like Arkady sort of diverted to his BOOST_TYPEOF facility, so I don't know what the current status of the lib is. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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ATTN: Branch for release is scheduled for tonight
by Aleksey Gurtovoy 20 Oct '04

20 Oct '04

I'll post another notice right before the branching, and yet another one when it's complete. -- Aleksey Gurtovoy MetaCommunications Engineering

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Sprit-1.6 and latest boost
by Russell Hind 20 Oct '04

20 Oct '04

Because bcc32 can't deal with spirit-1.8, to use spirit and boost 1.31, I've replaced spirit.hpp and the spirit directory in boost with the 1.6 distribution. This doesn't work with the latest boost code, it looks like the errors are due to the changes mpl that were mentioned. Are there any plans to update spirit 1.6 to work with latest boost so those of us with older compilers can use the two together? Thanks Russell

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Boost 1.31.0 just announced on freshmeat??
by Neal D. Becker 20 Oct '04

20 Oct '04

What's this? http://freshmeat.net/projects/boost/?branch_id=3248&release_id=176309

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RE: [boost] Re: Any interest in adding unicode support to boost?
by Stefan Seefeld 20 Oct '04

20 Oct '04

> From: Robert Ramey [mailto:ramey@rrsd.com] > Sent: October 19, 2004 12:19 > So I always presumed that there was a "unicode" locale that > implemented this > as well all other required information. Now that I think > about it I realize > that it was only a presumption that I never really checked. > Now I wonder > what facitlities do most libraries do provide for unicode > facets. I know > there are ansi functions for translating between multi-byte and wide > character strings. I've used these functions and they did > what I expected > them to do. I presumed they worked in accordance with the currently > selected locale and its related facets. If the > basic_string<wchar_t>::operator<(...) isn't doing "the right > thing" wouldn't > it be just a bug in the implementation of the standard > library rather than a > candidate for a boost library? The unicode standard is rather young, compared to the C++ standard library. It seems the original authors of std::locale and std::basic_string just prepared for some expected flexibility. That doesn't mean all the complexities of today's unicode could fit into that. Just look at the size requirements alone compared to 'wchar_t'... Regards, Stefan

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