April 2006 - Boost - lists.preview.boost.org

[plugin] problems with plugin base class
by Tim Blechmann 29 Apr '06

29 Apr '06

hello boost devs, using the plugin library from the boost-sandbox, i experience problems in the following two cases: - the base class of the plugin accepts parameters: *** Creating an instance of plugin class Could not load weapon: Boost.Plugin: Can't cast to the right factor type - the base class of plugin is inherited from another class: Could not load weapon: Boost.Plugin: Could not open shared library './library.so' i've added both cases to the example sources and attached them, would be awesome, if this could be made working ... although i'm not really familiar with the plugin internals, i'd be willing to test any code, the plugin developers send me... thanks in advance ... tim ps: please cc any response to me, since i'm a posting-only member. pps: since sourceforge currently seems to have some problems with synchronizing anonymous and developer's cvs, please also send me patches -- TimBlechmann(a)gmx.de ICQ: 96771783 http://www.mokabar.tk Linux is like a wigwam: no windows, no gates, apache inside, stable.

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Re: [boost] Possible class submission: Sparse Array
by Sohail Somani 29 Apr '06

29 Apr '06

> -----Original Message----- > From: boost-bounces(a)lists.boost.org > [mailto:boost-bounces@lists.boost.org] On Behalf Of Spencer Collyer > Sent: Thursday, April 27, 2006 12:11 AM > To: boost(a)lists.boost.org > Subject: Re: [boost] Possible class submission: Sparse Array > > On Wed, 26 Apr 2006 12:33:06 -0700, Sohail Somani wrote: > > > Would there be a bounds type for specifying runtime bounds? > It seems the > > upper bound if specified, can only be specified at compile > time and this > > would limit the size of your arrays... Or is this by design? > > Because the bounds checking is specified using an inherited > policy class, > there is in principle no reason why run-time bounds cannot be > used, and I > did indeed look at doing this. I had figured this was the case, just wasn't sure :) > The option I came up with was to have a set_limit function on > the bounds > policy which you would call to define the limits at run time. The only > reason I haven't gone ahead and done the work to implement run-time > limits as yet is because I'm still not sure about the answers to a few > questions: I think you can have the sparse array implementation have an overloaded constructor that takes an instance of the policy. With a set_limit you may end up having invalid arrays for some length of time. Then, I don't think there is anything stopping you from having a reset_bounds/resize type function, but I'd rather only have them be set once as you suggested. To be honest, I'm quite used to having runtime dimensions specified and ublas's sparse arrays interface is pretty good this way. Thanks for your email! Sohail

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Report from Berlin C++ Standards Committee meeting
by Beman Dawes 29 Apr '06

29 Apr '06

The C++ Standards Committee met last week in Berlin, Germany. Of interest to Boosters: * All of TR1 except special functions has been voted into C++0x, the next standard. Special functions were supported by the Library Working Group (LWG), including vendors such as Dinkumware, but they didn't fly in full committee. Compiler vendors indicate great worry about support costs. This vote isn't necessarily the end of the story since support for special functions was strong, although not quite enough to achieve the consensus needed. (The committee will only go ahead if there is consensus - a simple majority isn't good enough.) * Boost Filesystem was voted into TR2. * Boost Lexical Cast has been tentatively accepted by the LWG for TR2. * Boost Any has been tentatively accepted by the LWG for TR2. * A Boost Date-Time query was presented at the last meeting, and LWG members again in Berlin indicated interest in seeing a full proposal for TR2. * A Boost Networking [asio] query was presented, and the LWG has indicated their interest in a full proposal for TR2. The developer of a competing proposal has graciously thrown his support behind the Boost proposal, and may propose some additional higher level functionality. * Boost Threads has been reaffirmed as the LWG's choice as the basis for a TR2 threading library. Pete Becker's www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1907.html is the most recent version of the proposal. It will be refined and modified as work progresses. Howard Hinnant plans to propose unifying the lock classes into scoped_lock/shared_lock and possibly one other class. Pete will propose a function to access the underlying operating system handles to allow access to non-portable functionality. I've committed to review error handling to ensure handling of operating system errors is consistent between all TR2 libraries. * It looks more and more likely that Concepts will go into C++0x. If Concepts do go into the core language, the LWG has indicated their intent to percolate Concepts throughout the Standard Library. (Concepts were being held up by two competing proposals, but those two proposals are in process of being coalesced into a single proposal by Bjarne Stroustrup and Doug Gregor.) The next committee meetings are: October, 2006, Portland, Oregon. See www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1946.htm Spring, 2007, Oxford, England. Fall, 2007, Kona, Hawaii This coming October is the deadline for TR2 proposals. See www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1810.html --Beman

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[plugin] problem with headers in different objects
by Tim Blechmann 28 Apr '06

28 Apr '06

hi all, currently it's not possible to include boost/plugin.hpp or boost/plugin/virtual_constructors.hpp from different object files with gcc-3.4.6 including plugin.hpp from two object files: tim@laptop ~/sandbox $ g++ main.cpp t1.o t2.o t2.o: In function `boost::dynamic_visitor_base::~dynamic_visitor_base()': t1.cpp:(.text+0x0): multiple definition of `boost::dynamic_visitor_base::~dynami c_visitor_base()' t1.o:t1.cpp:(.text+0x0): first defined here t2.o: In function `boost::dynamic_visitor_base::~dynamic_visitor_base()': t1.cpp:(.text+0x28): multiple definition of `boost::dynamic_visitor_base::~dynam ic_visitor_base()' t1.o:t1.cpp:(.text+0x28): first defined here t2.o: In function `boost::dynamic_visitor_base::~dynamic_visitor_base()': t1.cpp:(.text+0x50): multiple definition of `boost::dynamic_visitor_base::~dynam ic_visitor_base()' t1.o:t1.cpp:(.text+0x50): first defined here t2.o:(.bss+0x0): multiple definition of `(anonymous namespace)::_1' t1.o:(.bss+0x0): first defined here t2.o:(.bss+0x1): multiple definition of `(anonymous namespace)::_2' t1.o:(.bss+0x1): first defined here t2.o:(.bss+0x2): multiple definition of `(anonymous namespace)::_3' t1.o:(.bss+0x2): first defined here t2.o:(.bss+0x3): multiple definition of `(anonymous namespace)::_4' t1.o:(.bss+0x3): first defined here t2.o:(.bss+0x4): multiple definition of `(anonymous namespace)::_5' t1.o:(.bss+0x4): first defined here t2.o:(.bss+0x5): multiple definition of `(anonymous namespace)::_6' t1.o:(.bss+0x5): first defined here t2.o:(.bss+0x6): multiple definition of `(anonymous namespace)::_7' t1.o:(.bss+0x6): first defined here t2.o:(.bss+0x7): multiple definition of `(anonymous namespace)::_8' t1.o:(.bss+0x7): first defined here t2.o:(.bss+0x8): multiple definition of `(anonymous namespace)::_9' t1.o:(.bss+0x8): first defined here collect2: ld returned 1 exit status t1.cpp & t2.cpp contain: #include "boost/plugin.hpp" main.cpp contains: int main(){return 0;} similar things happen with boost/plugin/virtual_constructors.hpp ... not sure, if it's a but in the library, or a compiler bug ... cheers ... tim -- TimBlechmann(a)gmx.de ICQ: 96771783 http://www.mokabar.tk You can play a shoestring if you're sincere John Coltrane

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Re: [boost] [Boost Review] Do property_tree and program_options overlap?
by bwood 28 Apr '06

28 Apr '06

: "Gennadiy Rozental" <gennadiy.rozental_at_[hidden]> wrote in message :>"Ivan Vecerina" <ivec_at_[hidden]> wrote in message :> It's not like boost::serialize currently dominates the world :> of persistent storage. : :So? I see a potencial for it to become a standard like iostreams now. I'm glad you added the part about iostreams as I think it hits the nail on the head. I agree with Andrei's opinions of iostreams. http://groups.google.com/group/comp.lang.c++.moderated/browse_frm/thread /86a5a3f804c84ea4/48842ae2fd029ce6?hl=en#48842ae2fd029ce6 While iostreams is a part of the standard that doesn't mean it is a healthy part of it. I think eventually someone will develop something better. You've been touting multi_index here as well. I wouldn't balk if you suggested adding it to the standard. Brian www.webEbenezer.net

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Property Tree library review
by Jose 28 Apr '06

28 Apr '06

I vote a weak NO. I would change this to yes once the library has some decent functionality to select values by path (see the related thread on testing the PT xml parser) I also have some general comments about the name, scope and design of the library: 1. The library name I think the library should be named after what it does (not how it does it). The property tree is the container but in this case the library is about program configuration - Boost.ProgramConfiguration (there are other libraries where a more technical name is better because of the library scope, like the property map library, but not for this one) 2. Relation to other libraries I think the relation to the Boost.ProgramOptions library is not clear. Maybe it should ! Without having used the PO lib, I think the PT lib is a superset, focusing on both command-line and file-based configuration. The use of the Spirit library for the xml parser is good. Using other boost libraries like serialization, .. do not seem correct for this specific library. 3. The scope This is the strong point of this library. I has the potential to be widely useful as it can be used in any program to load and save the program settings 4. The design * The strong points: I think the only strong point is the focus on simplicity. I think this attracts everybody attention as the library can be quickly used and everybody sees and specific use right away but I see many design issues too - see below * The weak points: a) The container The use of a generic tree container has not been seriously considered. The argument against using a generic container is that it would complicate the library. I don't agree. For a specific example check the tree.hh library: an STL-like C++ tree class http://www.aei.mpg.de/~peekas/tree/ This library provides a generic tree container and well thought-out interfaces. It is as easy or easier to use than the PT lib b) The parsers (library vs utilities) It is not clear whether the parsers are utilities or whether the PT lib is supposed to provide some framework to build specific parsers. E.g. * How easy is to use this existing file format with ":" separator name1: value1 name2: value2 * How easy is to use a more advanced format, e.g. a CSS file h1 { font-family: arial; font-size: 12px; } .show { ... } This also should be explained in the docs. d) Relation to standards The library has been presented many times as a sort of DOM ... >From the docs: "One can think of it as a sort of Document Object Model, which is minimalistic, ..." I think this is a fallacy, because there are standards like the W3 DOM and XPath that are widely useful and widely used, and taking these out of the design just limits what the library can do (if the standards were both not widely useful and widely used then I would think otherwise). Again, the argument is simplicity but I think with a generic tree container, like tree.hh, these standards can be supported without complicating the usage. Conclusion ---------------- Maybe one way out of this conundrum is to consider the current library as the basic one and later have an advanced version that really provides the generic container and the proper query mechanisms.

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[Boost-bugs] [ boost-Support Requests-1478619 ] new timezone db file for #1471723 - 2007 DST support
by SourceForge.net 28 Apr '06

28 Apr '06

Support Requests item #1478619, was opened at 2006-04-28 16:01 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1478619&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: Robert Hodge (quatras) Assigned to: Nobody/Anonymous (nobody) Summary: new timezone db file for #1471723 - 2007 DST support Initial Comment: This relates to support item #1471723. The attached file is a suggested replacement for the timezone.csv file which will assist in supporting the upcoming DST rule changes in 2007 ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1478619&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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[type_traits][regex] VC++ __fastcall /clr
by Edward Diener 28 Apr '06

28 Apr '06

Since no one responded to this in the boost user group, I will post it here in this group. When compiling managed code in VC++ .NET, which is any of the /clr compiler options, the programmer can mix both CLR classes and regular C++ classes. In the regular C++ classes, Boost should work fine. The VC++ macro which tells one that managed code of any kind is being compiled is _MANAGED, which is defined if managed code is being compiled else it is not defined. So when any of the /clr compiler options are being used _MANAGED is defined, else it is not defined. The VC++ compiler issues compiler warning C4561 whenever managed code is being compiled and __fastcall shows up as a calling convention in any way. Obviously the programmer can turn off this warning via a VC++ #pragma, but I am wondering if Boost could not change some of its headers to avoid this warning. In Boost bind and mem_fn, the programmer has to specifically ask for __fastcall support via special Boost macros to have any functions declared with the __fastcall calling convention, so nothing should be done there since it is clearly a programming error if he does so while compiling managed code. However there are two other places in Boost which I have discovered where functions with the __fastcall calling convention are declared without the programmer doing anything. The first, and most cumbersome reagrding warning messages, is in type_traits in the helper header files type_traits\detail\is_mem_fun_pointer_tester.hpp and type_traits\detail\is_function_pointer_tester.hpp. Since many other libraries, lambda in my case recently, uses type_traits, might not these headers be changed so that when VC++ is the compiler and _MANAGED is defined, the __fastcall versions of these helper functions are not declared ? The second, which I have not encountered but which I saw while searching through Boost header code, is in regex\config.h and I do not know, given some other macros there, whether BOOST_REGEX_CALL can ever be __fastcall when compiling with /clr, but if it can perhaps a change can be made there also. I know that it is not the purpose of Boost to try to accomodate C++ .NET programmers creating /clr compilations using Boost, especially when just warnings and not errors are issued. But in this case, using the predefined macro _MANAGED in VC++ and BOOST_MSVC, it would seem this acoomodation could be made. So I would like the Boost developers of type_traits, especially since it is used by so many other Boost libraries, and regex to consider it.

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[Boost-bugs] [ boost-Bugs-1478435 ] boost/crc.hpp used non-standard conforming syntax
by SourceForge.net 28 Apr '06

28 Apr '06

Bugs item #1478435, was opened at 2006-04-28 16:48 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=1478435&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: Mattias Ellert (mattiasellert) Assigned to: Nobody/Anonymous (nobody) Summary: boost/crc.hpp used non-standard conforming syntax Initial Comment: [ellert@ellert ~]$ g++ -pedantic -x c++ /usr/include/boost/crc.hpp /usr/include/boost/crc.hpp:464: error: ISO C++ forbids variable-size array `table_type' [ellert@ellert ~]$ g++ --version g++ (GCC) 3.4.4 20050721 (Red Hat 3.4.4-2) Copyright (C) 2004 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. The header file uses a non-constant expression as the size in an array declaration. This is not valid c++, and the compiler rejects it when using the -pedantic flag. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1478435&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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Class views on an associative container
by SeskaPeel 28 Apr '06

28 Apr '06

Hi list, I'm looking for a "multi-class container", with access to sub-containers of elements depending on their class. All elements are derived from the same base class, and I want to have "views" of containers of final classes, or even intermediate classes. This container would be associative, like a map. As instance if I have // Base class class A {} ; // Intermediate classes class B : public A {} ; // Final classes class C : public B {} ; class D : public B {} ; class E : public A {} ; I want a container that can hold any A-derived class, on which I could have views of sub containers of class C, D or E, and even a sub container of intermediate class B. I looked at multi-index, but no such feature seems to be feasible. And I have no need of multiple indices, as I access all theses elements by their ID which is a member of A. Any hint on how I could implement this? Cheers, SeskaPeel.

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Re: [boost] property tree & registry approach
by Alexander 28 Apr '06

28 Apr '06

"Marcin Kalicinski" <kalita(a)poczta.onet.pl> wrote in message news:<e2t2kb$6ja$1(a)sea.gmane.org>... > My answer is quite short, but I discovered a major flaw with the approach > you propose, and it renders most of it unimplementable. Please see below: > > > May be it will be interesting to compare another approach to the proposed > > Property Tree Library. > > > class basic_registry_proxy > > { > > public: > > ... > > template<class T> virtual bool get(const path, T&) const = 0; > > No can do. Virtual functions cannot be templates! > > This rules out automatic type conversions. It would have to rely on > something else to provide it. You are absolutely right. At my implementation basic_registry_proxy has only simple get/set functionality: virtual bool get(const path, string&) const = 0; Template function belongs to wrapper which contains pointer to basic_registry_proxy. I was trying to simplify my class hierarchy and produce silly indeed interface. I am sorry. Regards, Alexander

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Testing Property Tree xml parser
by Jose 28 Apr '06

28 Apr '06

Hi, I am trying to finish my review of the Property Tree. I find the scope of the library for program configuration very useful. I am currently testing only the read_xml parsing, and although it is only meant for very simple xml files i find its xml support very very sketchy. I've performed multiple experiments with rss feed files, which are very simple xml files. This is the loop I am using to test different xml paths using a command line utility: BOOST_FOREACH(ptree::value_type &v, pt.get_child( argv[2] )) cout << "value: " << v.second.data() << endl; Below is a list of my experiments: 1. parsing the artima.com spotlight feed Result: FAILED The path is rdf:RDF.item.title and I get invalid character entitly. I think the parser should support the semicolon within the tag name, given that in many cases the config files might be generated by real xml programs which use namespaces and it should be able to read them even if it does not support save. 2. parsing the MSDN visual c++ feed Result: FAILED The path is rss.channel.item.title and I get an "xml parse error". Is there a posibility of getting more meaningful errors ? 3. parsing the main CNN feed Result: FAILED The path is rss.channel.item.title. This query fails with no error but if the path is shortened to rss.channel.item it dumps all the values within item, but there is no value at that level (only nested tags) 4. Parsing the Google News RSS feed Result: FAILED The path is rss.channel.item.title. I get "Invalid character entity error". A more meaningful error should be possible with the position in the file where the entity occurs. 5. Parsing the Google News Atom feed Result: FAILED The path is feed.entry.title. I get "Invalid character entity error". regards jose

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[SoC] Boost not listed?
by Joaquín Mª López Muñoz 28 Apr '06

28 Apr '06

As of now, the following page http://code.google.com/soc/ does not list Boost amongst the mentor organizations. Maybe we missed some deadline or were rejected, is it transitory? Maybe a ping to soc2006support(a)google.com is in order? Thank you, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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[Property tree review] Comments & layout information
by Marcin Kalicinski 28 Apr '06

28 Apr '06

I have an interesting idea how to preserve comments & layout information. The relevant structures should be included in the tree under a special meta key: Config file: key1 data1 ;comment before key2 key2 data2 ;comment after key2, on the same line The resulting tree might look like that: key1 data1 key2 data2 _metadata_ { key1 { row 1 column 1 } comment "comment before key2" { row 2 column 1 } key2 { row 3 column 1 } comment "comment after key2, on the same line" { row 3 column 15 } } This way it is easily accessible using ptree interface, it is readable, editable, and it is possible to manipulate it programatically. And above all, it does not require any extra support from ptree, only from the parsers. With some effort it also allows 100% reproduction of original layout. --Marcin

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property tree & registry approach
by Alexander Belyakov 28 Apr '06

28 Apr '06

May be it will be interesting to compare another approach to the proposed Property Tree Library. I was highly pleased to see this library but here I focused at differences which could offer more flexible and scalable solution at some aspects of registry behavior. Of course, this flexibility has some cost and functionality of libraries not overlapped fully. But the registry functionality is the most interesting part for me. class path; class basic_registry_proxy { public: ... template<class T> virtual bool get(const path, T&) const = 0; template<class T> virtual bool set(const path, T&) = 0; ... } //basic_registry_proxy - represents the whole regestry tree. //Not any key but whole tree. //path - identify actual key at basic_registry_proxy. class simple_registry : public basic_registry_proxy; // uses win API class win_registry : public basic_registry_proxy; // uses win API class thread_safe_registry : public basic_registry_proxy; // uses Boost.Thread class dispersed_registry : public basic_registry_proxy; // stores data at multiple files class basic_parser { public: virtual load(basic_registry_proxy*, const char* PathatAtProxy = 0) const = 0; virtual save(basic_registry_proxy*, const char* PathatAtProxy = 0) const = 0; } class win_registry_parser : public basic_parser; class XML_registry_parser : public basic_parser; usage example: // copy windows registry to simple_registry (1) win_registry_parser wregparser("HKEY_LOCAL_MACHINE/SOFTWARE/"); simple_registry sregistry; wregparser.load(&sregistry); // convert windows registry to simple_registry (2) win_registry wregistry; simple_registry sregistry; copy(&wregistry, path("/"), &sregistry, path(/)); Assume that at windows registry we have such structure: somekey1 defaulttext1 REG_SZ somekey2 somekey3 defaulttext2 REG_SZ somevalue1 somedata REG_SZ somevalue2 1234 REG_DWORD Lets choose prefix "#" for subsidiary attribute information. So we could get new representation of registry. somekey1 defaulttext1 { #role key {} #type REG_SZ {} somekey2 { somekey3 defaulttext2 { #role key{} #type REG_SZ {} } somevalue1 somedata { #role value {} #type REG_SZ {} } somevalue2 1234 { #role value{} #type REG_DWORD {} } } } At this case the new registry syntaxes is richer than windows registry one. Regards, Alexander Belyakov

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Compilation problem :Regex
by mahesh karanth 28 Apr '06

28 Apr '06

Hello All, When I try to use regex with boost.multiindex I got the following compilation error. But when I indipendently compile multiindex package and regex package both compiles without any error. What is the problem? Can anyone please help me to getout of this Error dump: D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/regbase.hpp(125) : error C2955: 'collate' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\locale(67) : see declaration of 'collate' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(32) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(36) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(40) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(44) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(48) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/regbase.hpp(125) : error C2955: 'collate' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\locale(67) : see declaration of 'collate' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(32) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(36) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(40) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(44) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\BOOST\INCLUDE\BOOST-1_33_1\boost/regex/v4/perl_matcher.hpp(48) : error C2955: 'map' : use of class template requires template argument list C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\map(140) : see declaration of 'map' D:\MYPROJECTS\BRIGHTCLOUD AGENT\URLNORMALIZATION\CDNList.h(18) : warning C4251: 'CDNVector' : class 'std::vector<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::allocator<class std::basic_string<cha Best Regards Mahesh Karanth --------------------------------- Yahoo! Messenger with Voice. PC-to-Phone calls for ridiculously low rates.

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[bind] bind_visit_test failure on GCC 4.1.0 and HP/CXX
by Markus Schöpflin 28 Apr '06

28 Apr '06

The test fails with the following message: bind_visit_test.cpp(61): test 'vis.hash == 34' failed in function 'int main()' It has been failing on HP/CXX only for quite some time, but now I noted it also fails on GCC 4.1.0 Linux and Tru64. Is this an issue with the test? Markus

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[mpl] error compiling with evc4
by Michael Fink 28 Apr '06

28 Apr '06

Hello, while porting Boost to evc4 I encountered the following error in boost\mpl\aux_\preprocessed\msvc60\and.hpp (and the same in or.hpp). Note that evc4 is very similar to msvc6, so it uses most of the defines set for this compiler. The error messages are: {path}\boost\mpl\aux_\preprocessed\msvc60\and.hpp(42) : error C2908: explicit specialization; 'and_impl<1>' has already been instantiated from the primary template {path}\boost\mpl\aux_\preprocessed\msvc60\and.hpp(42) : error C2039: 'result_' : is not a member of '`global namespace'' {path}\boost\mpl\aux_\preprocessed\msvc60\and.hpp(42) : error C2143: syntax error : missing ';' before '<' {path}\boost\mpl\aux_\preprocessed\msvc60\and.hpp(42) : error C2059: syntax error : '<' {path}\boost\mpl\aux_\preprocessed\msvc60\and.hpp(44) : error C2143: syntax error : missing ';' before '{' {path}\boost\mpl\aux_\preprocessed\msvc60\and.hpp(44) : error C2447: missing function header (old-style formal list?) [...] The code in and.hpp looks as follows: namespace boost { namespace mpl { namespace aux { template< bool C_ > struct and_impl { template< typename T1, typename T2, typename T3, typename T4 > struct result_ : false_ { }; }; template<> struct and_impl<true> { template< typename T1, typename T2, typename T3, typename T4 > struct result_ : and_impl< BOOST_MPL_AUX_NESTED_TYPE_WKND(T1)::value >::template result_< T2,T3,T4,true_ > { }; }; template<> struct and_impl<true> ::result_< true_,true_,true_,true_ > : true_ { }; } // namespace aux [...] The compiler doesn't recognize the out-of-class template instanciation. I can comment out the last struct definition, but then the compiler gives errors in other places where the template is used. How can I solve that with the evc4 compiler? Thanks, Michael

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rational.hpp requires working unary minus
by Yuriy Koblents-Mishke 28 Apr '06

28 Apr '06

Test Code: std::numeric_limits<long> lm; boost::rational<long> mn( lm.min() ); std::cout << mn << '=' << mn / 1 << std::endl; Output: -2147483648/1=1/0 Reason: lm.min() == -2147483648 lm.max() == 2147483647 and unary minus is not well defined for lm.min(); on my system -lm.min() == -2147483648 The problem is expected with any computer representing negative integers using binary two's compliment.

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evc4 port of Boost
by Michael Fink 28 Apr '06

28 Apr '06

Hello, I'm currently trying to port Boost for the Microsoft eMbedded Visual C++ 4.0 (evc4) compiler that targets PocketPC 2003 and other devices based on Windows CE 4.2. The compiler's frontend (parser, etc.) is based on Visual C++ 6.0, with little to no changes. As Boost (at present) supports this compiler, porting should be rather easy (or so I thought). For Standard C++ library support I use STLport 5, since evc4 doesn't have a working one. Before putting more work into porting, I have some questions: Is it desirable to port Boost for this platform? I read that at some version support for vc6 will be dropped. If possible, I would like to have at least some version of Boost that works with evc4. Where can I get help with more complex error messages that appear during porting? What I've done so far: I created a custom evc4-stlport-tools.jam file in boost\tools\build\v1 so that I can build different libraries. It's more of a hack-together than a cleanly integrated build file. I changed some Boost.Config files to support evc4 compiler. I fixed all issues for evc4 in libs\thread\src\* so that the Boost.Thread library compiles without warnings and errors. thanks, Michael

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SOC -- still deliberating
by David Abrahams 27 Apr '06

27 Apr '06

FWIW, I received a message yesterday that they were still considering our application and hoped to have more info for us tomorrow. -- Dave Abrahams Boost Consulting www.boost-consulting.com

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Help! Which compilers use _RWSTD_VER and __SGI_STL_PORT?
by Nicola Musatti 27 Apr '06

27 Apr '06

Hallo, I think I found a workaround for the pool problem with BCB2006, which broke several serialization tests. However in order to be sure not to break other compilers I need to know if the macros above, _RWSTD_VER and __SGI_STL_PORT, are Borland specific or no. Any idea? Thanks, Nicola Musatti

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Re: [boost] shared_ptr and RTTI?
by Peter Dimov 27 Apr '06

27 Apr '06

Foster Brereton wrote: > Hi all, > > I have this request from a colleague. Can anyone help me shed some > light on his issue?: > >> I did not use the boost::shared_ptr in quite some time and I was >> surprised to find out that, more recently, the shared_ptr _requires_ >> RTTI to be enabled. I did some reading on the websites and groups and >> while I admit that the new version is more flexible, powerful, etc, I >> would have thought that they also left a switch in for the old >> behavior which did not require RTTI. In some projects, RTTI does not >> add any benefits and people obviously turn it off. >> >> Is anybody aware of such a "switch" that will allow somebody to use >> boost::shared_ptr without RTTI? shared_ptr uses typeid(Type) in get_deleter. This functionality is available in most compilers even when RTTI is off, with g++ being the notable exception. In the spirit of being a notable exception, g++ also doesn't provide a predefined macro when -fno-rtti is used (or not used.) I can add BOOST_SP_DISABLE_GET_DELETER if this would help. If the review manager agrees that not having this macro is a bug in 1.33, it can even go into 1.34.

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[Boost-bugs] [ boost-Support Requests-1477483 ] How to use Boost in VC++ 7.1
by SourceForge.net 27 Apr '06

27 Apr '06

Support Requests item #1477483, was opened at 2006-04-27 01:20 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1477483&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: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: How to use Boost in VC++ 7.1 Initial Comment: Hello, I am using VC++ 7.1 (Visual Studio.Net 2003) and one my project has Boost 1.6 (spirit-1.6.0) what configuration settings I got to do to compile the project. Thanks in advance. ~Skywalker ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1477483&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-Support Requests-1477469 ] Boost, VS2005 and WinCE
by SourceForge.net 27 Apr '06

27 Apr '06

Support Requests item #1477469, was opened at 2006-04-27 01:01 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1477469&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: Building Boost Group: None Status: Open Resolution: None Priority: 5 Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: Boost, VS2005 and WinCE Initial Comment: I have tried to build Boost under VS2005 for the PocketPC 2003 SDK (ARM) by using files posted by other users, specifically by Reece Dunn. See below....any ideas? jim(a)hewell.com My command line... bjam --v2 "-sTOOLS=msvc" "-sBUILD=release <windows>pocketpc2003 <charset>wide <architecture>arm4" install I get the following errors... C:/boost_build_ce/tools/build/v2/build\property.jam:26 5: in validate1 from module property error: Invalid property '<architecture>': No value specified for feature 'architecture'. C:/boost_build_ce/tools/build/v2/build\property.jam:27 3: in validate from module property C:/boost_build_ce/tools/build/v2/build\property.jam:28 1: in property.validate-property-sets from module property C:/boost_build_ce/tools/build/v2/build\toolset.jam:103 : in flags from module toolset C:/boost_build_ce/tools/build/v2/tools\midl.jam:142: in load from module midl C:\boost_build_ce\tools\build\v2 \kernel\modules.jam:259: in import from module modules C:/boost_build_ce/tools/build/v2/tools\msvc.jam:21: in load from module msvc C:\boost_build_ce\tools\build\v2 \kernel\modules.jam:259: in import from module modules C:/boost_build_ce/tools/build/v2/build\toolset.jam:25: in using from module toolset C:\boost_build_ce\tools\build\v2\user-config.jam:29: in modules.load from module user-config C:/boost_build_ce/tools/build/v2\build- system.jam:115: in load from module build-system C:\boost_build_ce\tools\build\v2 \kernel\modules.jam:259: in import from module modules C:\boost_build_ce\tools\build\v2 \kernel\bootstrap.jam:153: in boost-build from module C:\boost_build_ce\tools\build\v2\boost-build.jam:2: in module scope from module ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1477469&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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