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[Review] Fusion
by Douglas Gregor 16 May '06

16 May '06

My review of the Fusion library follows, but I'll spoil the ending now: I vote to accept Fusion into Boost. I was very interested to look into this library. I've found heterogeneous sequences to be extremely interesting and, in some cases, precisely the right answer. I've had to write about 1/3 to 1/2 of the heterogeneous algorithms provided by Fusion at various times, time which could have been saved and code that could have been cleaner if Fusion was around. So, I'm quite familiar with heterogeneous containers and algorithms. I was not able to review the library in-depth, unfortunately, but I'm itching to get my fingers on it when time allows. So, what follows is really just a bunch of minor nits from reading the documentation. Overall: - I'm not a fan of naming libraries anything but what they do. "Fusion" makes sense when you understand the context, but nobody searching through the list of libraries will see "Fusion" and think "AHA! That's what I need". Alas, I don't have a name in mind. Description: - Spelling error: "hetrogenous" Introduction: - Parts of the introduction are a bit too colloquial for my taste, in particular, the paragraph. "Hmmm, kinda reminds us of STL right? Right! Can you imagine how it would be like if you used STL without the algorithms? Everyone will have to reinvent their own algorithm wheels." I'd rather see them written in a more direct manner. Not that I prefer boring, but at some point the whimsical writing trivializes the library. Top of the Iceberg: - In the [1] footnote, spelling error: "Orgainization" Support: tag_of: I believe I understand the usefulness of this trait, but only because I understand tag dispatching already. Could the description be expanded a little, to at least say that tags uniquely identify the kind of sequence or iterator, e.g., list, map, etc.? category_of: I'm not keen on using the same trait (category_of) for two different kinds of entities (sequences and iterators). Traits classes should be tied to a particular concept, so I'd much rather see separate "iterator_category" and "sequence_category" metafunctions. pair: I tripped over the name of this entity a bit. It's a little odd to have a "pair" with only one kind of data. I guess I'd feel better if this were called "keyed_value" or "key_value", because it's easier for me to copy with a typed key than it us for me to have a pair that's very different from std::pair. Iterators: distance: Is the return type of distance(i, j) "int" or "convertible to int"? I could imagine that in many cases it could be an integral_constant<int, N>... It looks like Joel and Dan did a great job. Cheers, Doug

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[Boost-bugs] [ boost-Bugs-1489486 ] is_base_and_derived: no workaround needed fo SunPro CC 5.5
by SourceForge.net 16 May '06

16 May '06

Bugs item #1489486, was opened at 2006-05-16 04:38 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1489486&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: type_traits Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: John Maddock (johnmaddock) Summary: is_base_and_derived: no workaround needed fo SunPro CC 5.5 Initial Comment: boost/type_traits/is_base_and_derived.hpp, line 27 27 : && !BOOST_WORKAROUND(__SUNPRO_CC , BOOST_TESTED_AT(0x540)) \ probably should be changed to 27 : && !BOOST_WORKAROUND(__SUNPRO_CC , <= 0x540)) \ since with SunPro compiler v.5.5 it works fine (the exact compiler verion I checked is: Sun C++ 5.5 Patch 113817-09 2004/08/03) The broken is_base_and_derived version fails to detect private inheritance which in turn prevents from using such libraries as multi_index. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1489486&group_… ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[Boost-bugs] [ boost-Patches-1489352 ] evc4 port: Interlocked*-functions without volatile
by SourceForge.net 16 May '06

16 May '06

Patches item #1489352, was opened at 2006-05-16 10:20 Message generated for change (Comment added) made by pdimov You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1489352&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Michael Fink (vividos) >Assigned to: Peter Dimov (pdimov) Summary: evc4 port: Interlocked*-functions without volatile Initial Comment: This patch fixes the definition of the Interlocked*-functions when using Windows CE (_WIN32_WCE is defined). The functions use the "old" (VC6 without platform SDK) forms of the functions without the volatile keyword. The patch can be applied to both CVS HEAD and the 1_34 branch, since the file wasn't modified since then. ---------------------------------------------------------------------- >Comment By: Peter Dimov (pdimov) Date: 2006-05-16 13:42 Message: Logged In: YES user_id=305912 The patch doesn't look correct to me. Using WINAPI would require inclusion of <windows.h>; in this case just defining BOOST_USE_WINDOWS_H would be a better approach. It also patches the intrinsic section without also declaring the functions as intrinsics; is this intended? Does evc4 have intrinsic support for these functions? If it doesn't, we need to disallow the intrinsic path for _WIN32_WCE and patch the WIN32 section instead. ---------------------------------------------------------------------- Comment By: Michael Fink (vividos) Date: 2006-05-16 10:40 Message: Logged In: YES user_id=124874 Changed summary: it's only evc4 of course, since evc3 is too non-standard to support boost. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1489352&group_… ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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Re: [boost] [filesystem][program_options][serialization][test]fromcomp.lang.c++
by bwood 16 May '06

16 May '06

David Abrahams wrote: >bwood <brass(a)mailvault.com> writes: > >> David Abrahams wrote: >>>>"Le Chaud Lapin" <unoriginal_usern...(a)yahoo.com> writes: >>>>More than anything in programming, I depend on type to create form. >>>>Versioning implies that types are semi-weak. >>> >>> >>>If versioning in serialized form implies that, then so do revisions of >>>your type in a version control system. So, basically, once you design >>>a class, it never evolves? >>> >> >> Along the lines of what Lapin is thinking, I think B.Ser's "versioning" >> support is problematic. For example, consider wanting to move (or >> delete) a data member out of a type between versions 1.1 and 1.2. >> B.Ser needs that member to remain in the type in order to support 1.1. > >No, you just read it and throw it away. > > if (version == 11) > { > type_of_deleted_member ignored; > ar & ignored; > } Wait a minute. The code above looks like you may have focused on deleting a member and not relocating it. "ignored" isn't coming from anywhere else with a 1.1 client and it needs to be stored somewhere. Also if a 1.2 server is sending to a 1.1 client, it doesn't matter whether the member has been deleted or relocated, it still has to send the right thing back. Brian Wood www.webEbenezer.net

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[Boost-bugs] [ boost-Bugs-1489362 ] USES_CONVERSION is used in once.cpp
by SourceForge.net 16 May '06

16 May '06

Bugs item #1489362, was opened at 2006-05-16 09:50 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1489362&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: threads Group: None Status: Open Resolution: None Priority: 5 Submitted By: Michael Fink (vividos) Assigned to: Mike Glassford (glassfordm) Summary: USES_CONVERSION is used in once.cpp Initial Comment: The file libs/thread/src/once.cpp uses the ATL macros USES_CONVERSION and A2CW when the macro BOOST_NO_ANSI_APIS is defined (it's the case when compiling for Windows CE). This leads to compiler errors, since the needed header <atlconv.h> is not included anywhere. One possible fix would be to put the following in the file: #ifdef BOOST_NO_ANSI_APIS #include <atlbase.h> #include <atlconv.h> // for USES_CONVERSION and A2CW #endif (atlconv.h needs atlbase.h) Another possible fix would be to change the way to convert the string used in the call to CreateMutexW(). ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1489362&group_… ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[Boost-bugs] [ boost-Patches-1489352 ] evc4 port: Interlocked*-functions without volatile
by SourceForge.net 16 May '06

16 May '06

Patches item #1489352, was opened at 2006-05-16 09:20 Message generated for change (Comment added) made by vividos You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1489352&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Michael Fink (vividos) Assigned to: Nobody/Anonymous (nobody) >Summary: evc4 port: Interlocked*-functions without volatile Initial Comment: This patch fixes the definition of the Interlocked*-functions when using Windows CE (_WIN32_WCE is defined). The functions use the "old" (VC6 without platform SDK) forms of the functions without the volatile keyword. The patch can be applied to both CVS HEAD and the 1_34 branch, since the file wasn't modified since then. ---------------------------------------------------------------------- >Comment By: Michael Fink (vividos) Date: 2006-05-16 09:40 Message: Logged In: YES user_id=124874 Changed summary: it's only evc4 of course, since evc3 is too non-standard to support boost. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1489352&group_… ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[Boost-bugs] [ boost-Patches-1489359 ] [config] evc4 port
by SourceForge.net 16 May '06

16 May '06

Patches item #1489359, was opened at 2006-05-16 09:38 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1489359&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Michael Fink (vividos) Assigned to: Nobody/Anonymous (nobody) Summary: [config] evc4 port Initial Comment: This patch is a port for evc3/4 targeting Windows CE. Reason for the changes in auto_link.hpp: STLport with evc4 cannot be compiled in _STLP_DEBUG mode; the compiler issues wrong ARM code and _STLP_DEBUG mode cannot be used with evc4 ARM. I also introduced a new file wince.hpp in boost/config/platform/, since the defines in the _WIN32_WCE part got too big. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1489359&group_… ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[Boost-bugs] [ boost-Patches-1489352 ] evc3/4 port: Interlocked*-functions without volatile
by SourceForge.net 16 May '06

16 May '06

Patches item #1489352, was opened at 2006-05-16 09:20 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1489352&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Michael Fink (vividos) Assigned to: Nobody/Anonymous (nobody) Summary: evc3/4 port: Interlocked*-functions without volatile Initial Comment: This patch fixes the definition of the Interlocked*-functions when using Windows CE (_WIN32_WCE is defined). The functions use the "old" (VC6 without platform SDK) forms of the functions without the volatile keyword. The patch can be applied to both CVS HEAD and the 1_34 branch, since the file wasn't modified since then. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=307586&aid=1489352&group_… ------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[wave] rational for not allowing copies of the context
by Felipe Magno de Almeida 16 May '06

16 May '06

The subject says it all What is the rational for not allowing copies of context objects? -- Felipe Magno de Almeida

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[wave] skip include directives
by Felipe Magno de Almeida 16 May '06

16 May '06

Hi, I cant find in the documentation so I wondering if it is possible to skip include directives. To do not try to open the file and continues with the preprocessing normally. Best regards, -- Felipe Magno de Almeida

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