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[date_time] serialization of ptime with bcc32-5.6.4
by Russell Hind 13 Jan '05

13 Jan '05

I'm trying to serialize a ptime to an xml archive. I've included boost/date_time/posix_time/time_serialize.hpp but get an ambiguity error: [C++ Error] serialization.hpp(121): E2015 Ambiguity between 'boost::serialization::void serialize<boost::archive::xml_iarchive>(boost::archive::xml_iarchive &,boost::posix_time::ptime &,const unsigned int)' and 'boost::serialization::void serialize<boost::archive::xml_iarchive,boost::posix_time::ptime>(boost::archive::xml_iarchive &,boost::posix_time::ptime &,const unsigned int)' Is this a problem with the compiler or should this work? Thanks Russell

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[test] Detecting timeout support
by Jody Hagins 13 Jan '05

13 Jan '05

The example, unit_test_example2.cpp, demonstrates the detection of a timeout... void infinite_loop() { // unit test framework can break infinite loops by timeout #ifdef __unix // don't have timeout on other platforms BOOST_CHECKPOINT("About to enter an infinite loop!"); while(1); #else BOOST_MESSAGE( "Timeout support is not implemented on your platform" ); #endif } In my tests, I'd rather not have #ifdef __unix all over the place. Is is possible to add a macro in the Test framework itself that can be checked (on the off chance that timeout support is expanded)?

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building boost 1.32 library under vc7.1 with _fastcall
by Alex Baskakov 13 Jan '05

13 Jan '05

How are you, boost? I'm using /Gr option in my project under vc7.1 (the __fastcall calling convention for all functions except C++ member functions and functions marked __cdecl or __stdcall) And I'm trying to build boost with /Gr option but there are some troubles, for example, with Boost.Test library (it define 'main' function without __cdecl) So, what is the right way to do that? Is it possible to use boost in another calling vc7.1 conventions? Bye.

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build with specific python exec
by Neal Becker 13 Jan '05

13 Jan '05

I want to build using a python installed as "python24". How can I do this?

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shared_ptr to self while in constructor
by Dave 13 Jan '05

13 Jan '05

Hello all, A direct call to shared_from_this() does not work in a constructor. Is there any way that I may obtain a shared_ptr to myself while under construction? Thanks, Dave

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questions re the Vault
by Robert Ramey 13 Jan '05

13 Jan '05

I can't remember where the new vault is. I was hoping I could get to it from the main boost page www.boost.org . Could this be updated? I guess there's no simple way to move the stuff in the old vault into the new vault. I would really like to save that "old stuff". I just know I'll need that numeric to roman numeral converter as soon as its deleted. Robert Ramey

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uBLAS regressions/unsupported compilers
by Aleksey Gurtovoy 13 Jan '05

13 Jan '05

Folks, If all the compilers that currently show up as uBLAS regressions on http://www.meta-comm.com/engineering/boost-regression/developer/summary.html are indeed not supported, could somebody please mark them up correspondingly in "status/explicit-failures-markup.xml" (http://cvs.sourceforge.net/viewcvs.py/boost/boost/status/explicit-failures-…) ? Thanks! -- Aleksey Gurtovoy MetaCommunications Engineering

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'configure' problem on Solaris 9 - patch enclosed
by Timo Geusch 13 Jan '05

13 Jan '05

I'm still playing about, trying to get boost to compile on my Solaris 9 box with the 5.5 SUN compiler. As there is no compiler configuration yet for the 5.5 compiler I tried to run 'configure' in libs/config/tools to generate a user.hpp file. Unfortunately the installed configure assumes that 'tr' knows how to handle character classes. The one on the Solaris 9 box I've got at work doesn't, so trying to use configure to create a user/compiler specific configuration does produce no meaningful output as all the tests fail. The attached patch to boost_1_32_0/libs/config/tools/configure.in fixes that problem for the price of dumbing down the tr invocation. A 'configure' patched along the same lines (the box doesn't have autoconf installed) produced the desired output which will hopefully allow me to get a bit further building boost on the 5.5 compiler. Regards, Timo

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Help me! Where is the file "libboost_regex-vc6-mt-sgd-1_32.lib"?
by 海洋 13 Jan '05

13 Jan '05

I am using Windows XP + VC6. My compiler complained about "LINK : fatal error LNK1104: cannot open file "libboost_regex-vc6-mt-sgd-1_32.lib" when using "Debug Multithreaded" run-time library! I alos got a similar error with "Multithreaded" run-time library, but OK with other types of run-time librares. What is the matter? plase help me. Thank you very much!!

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Re: Patterns (was Singleton)
by Dave Handley 13 Jan '05

13 Jan '05

Jeff Garland wrote: > > Well, my feedback is going to be fairly shallow since I don't have lots of > time to look it over, but what I see looks pretty good. Both of the > composite > and visitor stuff would be nice additions. > Thanks :-) > One interesting question on composite is whether a boost::tree would > really be > all that's needed and might be a more general component that could be used > to > implement composite. Of course, you are really depending on pointer > semantics > and the clone, so it wouldn't be a minor change of course to go down that > path... > I'm pretty sure that the implementation I have of the composite would also work as a tree if you didn't use CRTP. I've not tested this, but just browsing my own code convinces me of it! I personally think that improvements could be made to the composite by incorporating some policies. I've not given this much thought, but options could include a memory management policy that allowed you to choose between: the current model with pointers and clone; a single type in the tree that used copy and value semantics; a smart_ptr based model. > I think instead of trying to create a 'patterns' library I would make 2 > standalone libraries: vistor and composite. The fact that these are > 'patterns' (ie: well known designs) isn't really strong enough to bind > them > together. > My reason for wanting to create a patterns library is actually from a desire to try and create a Loki equivalent in boost (with some additions). The inter-play between certain patterns is such that I think they could sit in the same library. For example, the work I've done on visiting composite trees, or the fact that an abstract factory is often a singleton, etc. Having said that, I would not be averse to them being different libraries if that was preferred. Dave

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