March 2007 - Boost - lists.preview.boost.org

Patches report
by Marshall Clow 28 Mar '07

28 Mar '07

[ Unchanged from Monday ] Patch count: 26 3 vladimir_prus 3 agurtovoy 2 turkanis 2 rogeeff 2 david_abrahams 1 urzuga 1 shammah 1 ramey 1 pdimov 1 nobody 1 jsiek 1 johnmaddock 1 grafik 1 glassfordm 1 dlwalker 1 dgregor 1 az_sw_dude 1 anthonyw 1 alnsn Assignee: agurtovoy <http://sourceforge.net/… [View More]

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Bug Report
by Marshall Clow 28 Mar '07

28 Mar '07

[ Up from 103 on Monday ] Bug count: 104 12 dgregor 10 vladimir_prus 9 beman_dawes 6 turkanis 6 nesotto 5 samuel_k 5 jsiek 5 grafik 4 shammah 4 nobody 4 az_sw_dude 3 johnmaddock 3 jmaurer 3 jbandela 3 fcacciola 3 djowel 2 urzuga 2 hubert_holin 2 dlwalker 2 agurtovoy 1 witt 1 … [View More]

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Support requests report
by Marshall Clow 28 Mar '07

28 Mar '07

[ Up from 38 on Monday ] Support count: 40 9 grafik 6 vladimir_prus 4 johnmaddock 3 nobody 3 jsiek 3 jbandela 2 turkanis 2 rogeeff 2 az_sw_dude 1 urzuga 1 shammah 1 samuel_k 1 fcacciola 1 djowel 1 agurtovoy Assignee: agurtovoy <http://sourceforge.net/users/agurtovoy/> Summary: duplicat initial members -> erase_key … [View More]

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[Boost-bugs] [ boost-Bugs-1689911 ] Regex for UChar or short on linux-x64
by SourceForge.net 28 Mar '07

28 Mar '07

Bugs item #1689911, was opened at 2007-03-28 15:50 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=1689911&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: regex Group: None Status: Open Resolution: None Priority: 5 Private: No … [View More]

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Attention: Where is "circular_buffer_v3.6.tar.gz" file?
by David Abrahams 28 Mar '07

28 Mar '07

FYI, we just received this query. If anyone can answer the OP, it would be appreciated. -- Dave Abrahams Boost Consulting www.boost-consulting.com Don't Miss BoostCon 2007! ==> http://www.boostcon.com

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Units: brief review
by Phil Endecott 28 Mar '07

28 Mar '07

I have spent a couple of hours looking at the units library. This is not a full review as I have not been able to compile my simple example in the time that I have available. I was motivated to write this review having yesterday needed to do some rather basic, but unfamiliar, physical calculations. At that time I used a simple awk script to do the arithmetic. If dimensional analysis had been available, it would have been a useful confidence builder that the code was doing the right … [View More]thing. The problem was this: I have measured the temperatures on the surfaces of an electrical device - a power supply - and I want to calculate the power dissipated. The maths is simple: power = temperature difference to atmosphere * area * heat transfer coefficient. I tried to write this using the units library. Power, temperature and area were straightforward: typedef quantity<power> power_t; typedef quantity<area> area_t; typedef quantity<temperature> temp_diff_t; The units of the heat transfer coefficient are W C^-1 m^-2. As far as I was able to see, I was not able to write anything like typedef quantity<power/temperature/area> heat_transfer_coefficient_t; Rather, it was necessary for me to reduce W C^-1 m^-2 to basic dimensions manually. This is not easy for me. I have to remember phyics that I knew in 1988 but have not used much since. My guess was: power = energy / time energy = force * distance force = mass * acceleration acceleration = length / time^2 so I concluded that the dimensions of power are mass length time^-3 and hence of heat transfer coefficient are mass time^-3 temperature^-1 length^-1, and wrote this: typedef composite_dimension<mass_tag,1,time_tag,-3,temperature_tag,-1,length_tag,-1> heat_transfer_coefficient_t; Defining the unit was easier: const heat_transfer_coefficient_t watts_per_square_meter_per_celcis = watts / square_meter / kelvin; But this fails to compile, with this error: error: conversion from ‘boost::units::unit<boost::units::dimension_list<boost::units::dim<boost::units::mass_tag, boost::units::static_rational<1l, 1l> >, boost::units::dimension_list<boost::units::dim<boost::units::time_tag, boost::units::static_rational<-0x00000000000000003l, 1l> >, boost::units::dimension_list<boost::units::dim<boost::units::temperature_tag, boost::units::static_rational<-0x00000000000000001l, 1l> >, boost::units::dimensionless_type> > >, boost::units::homogeneous_system<boost::units::SI::system_tag> >’ to non-scalar type ‘boost::units::composite_dimension<boost::units::mass_tag, 1, boost::units::time_tag, -0x00000000000000003, boost::units::temperature_tag, -0x00000000000000001, boost::units::length_tag, -0x00000000000000001, boost::units::dimensionless_type, 0, boost::units::dimensionless_type, 0, boost::units::dimensionless_type, 0, boost::units::dimensionless_type, 0>’ requested Presumably this is because I have got something wrong in my working. I gave up at this point. For this library to be useful for me, it needs to be quick to learn and easy to apply. Working only with the included units it does look like it would work reasonably well, but in the situation I have described above it was quickly obvious that it was taking more effort to apply it to my program than the benefit that would result. There are two areas that I was interested in looking in more detail at, and I encourage other reviewers who get further than me to have a look at them: 1. What is the effect on compile time? I used #if to switch between units and plain floats. 2. Is there any increase in object file size? I know there shouldn't be, but it would be interesting to know for sure. 3. Are the error messages comprehensible? The one show above is not great, but it could have been worse; there are some Boost libraries which I find unusable because of the volumne and inpenetrability of the error messages that result from a simple typo (though the compiler must share the blame for this). Finally some random notes from my reading of the documentation: - "io" is a misnomer since it only does output, as far as I can see. - I tend to refer to temperature differences in Celcius, rather than Kelvin. There is an obvious issue when dealing with absolute temperatures though. - "Meter" vs. "Metre". My dictionary says "meter" is "chiefly U.S.". My physics books say "metre" consistently. Presumably both can be included. - Am I the only person who uses capital letters for units named after people? Hmm, maybe I am. - Please don't call the units used in the U.S. "English" units. Here in England, we use the S.I. system for everything except pints of beer and miles on roadsigns. The units that we did use here until about 50 years ago were not the same as the ones that the Americans use. I hope this helps. I will not express an opinion about whether the library should be included; I leave that to people who have made more progress with it. Phil. [View Less]

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Re: [boost] [Soc 07] BigInt Alternate Projects -- SOC BigInt applicants please read!
by james.jones＠firstinvestors.com 28 Mar '07

28 Mar '07

From: Jeff Garland <jeff(a)crystalclearsoftware.com> > Fixed Decimal > > Introduction: Fixed Decimal types provide an alternative to floating > point types that are superior in their calculation properties. Robert > Klarer of IBM has proposed adding these types to C++ [in n2198 (pdf)] > and prior papers. This work is now on track to be included in C++0x. > Robert has an implementation of these types with a restrained license. > This project involves … [View More]

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[sorting] Any feedback for the multikey quicksort?
by Sam Schetterer 27 Mar '07

27 Mar '07

Hello. I have recently uploaded the updated sorting.zip file to vault, and it contains the full header file for multikey quicksort. For those of you who download the library and those of you who have downloaded the example library, some feedback, good or bad, is appreciated. Thanks.

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[Boost-bugs] [ boost-Support Requests-1689446 ] Problem build boost 1.33.1 on Aix 4.3.3
by SourceForge.net 27 Mar '07

27 Mar '07

Support Requests item #1689446, was opened at 2007-03-27 13:28 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=1689446&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:… [View More] 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: Problem build boost 1.33.1 on Aix 4.3.3 Initial Comment: When build boost on Aix 4.3.3 witn gnu 4.0.2 I get the following warnings; /u2/temp/boost_1_33_1/boost/regex/v4/regex_traits_defaults.hpp:168: warning: sorry: semantics of inline function static data 'const boost::re_detail::character_ pointer_range<char> ranges [19]' are wrong (you'll wind up with multiple copies) /u2/temp/boost_1_33_1/boost/regex/v4/regex_traits_defaults.hpp:168: warning: y ou can work around this by removing the initializer /u2/temp/boost_1_33_1/boost/regex/v4/regex_traits_defaults.hpp:190: warning: sorry: semantics of inline function static data 'const boost::re_detail::character_pointer_range<char>* ranges_begin' are wrong (you'll wind up with multiple copies) /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex_parser.hpp:117: instantiated from 'void boost::re_detail::basic_regex_parser<charT, traits>::parse(const char T*, const charT*, unsigned int) [with charT = char, traits = boost::regex_traits <char, boost::cpp_regex_traits<char> >]' /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex.hpp:95: instantiated from 'vo id boost::re_detail::basic_regex_implementation<charT, traits>::assign(const cha rT*, const charT*, boost::regex_constants::syntax_option_type) [with charT = cha r, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]' /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex.hpp:523: instantiated from 'b oost::basic_regex<charT, traits>& boost::basic_regex<charT, traits>::do_assign(c onst charT*, const charT*, boost::regex_constants::syntax_option_type) [with cha rT = char, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]' /u2/temp/boost_1_33_1/boost/regex/v4/instances.hpp:160: instantiated from here /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex_parser.hpp:1899: warning: sorry : semantics of inline function static data 'const char s_punct [5]' are wrong (y ou'll wind up with multiple copies) /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex_parser.hpp:1899: warning: you can work around this by removing the initializer When compiling finished libraries do not link. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1689446&group_… ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs [View Less]

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[Boost-bugs] [ boost-Support Requests-1689432 ] Problem build boost 1.33.1 on Aix 4.3.3
by SourceForge.net 27 Mar '07

27 Mar '07

Support Requests item #1689432, was opened at 2007-03-27 12:54 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=1689432&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:… [View More] 5 Private: No Submitted By: Nobody/Anonymous (nobody) Assigned to: Nobody/Anonymous (nobody) Summary: Problem build boost 1.33.1 on Aix 4.3.3 Initial Comment: When build boost on Aix 4.3.3 witn gnu 4.0.2 I get the following warnings; /u2/temp/boost_1_33_1/boost/regex/v4/regex_traits_defaults.hpp:168: warning: sorry: semantics of inline function static data 'const boost::re_detail::character_ pointer_range<char> ranges [19]' are wrong (you'll wind up with multiple copies) /u2/temp/boost_1_33_1/boost/regex/v4/regex_traits_defaults.hpp:168: warning: y ou can work around this by removing the initializer /u2/temp/boost_1_33_1/boost/regex/v4/regex_traits_defaults.hpp:190: warning: sorry: semantics of inline function static data 'const boost::re_detail::character_pointer_range<char>* ranges_begin' are wrong (you'll wind up with multiple copies) /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex_parser.hpp:117: instantiated from 'void boost::re_detail::basic_regex_parser<charT, traits>::parse(const char T*, const charT*, unsigned int) [with charT = char, traits = boost::regex_traits <char, boost::cpp_regex_traits<char> >]' /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex.hpp:95: instantiated from 'vo id boost::re_detail::basic_regex_implementation<charT, traits>::assign(const cha rT*, const charT*, boost::regex_constants::syntax_option_type) [with charT = cha r, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]' /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex.hpp:523: instantiated from 'b oost::basic_regex<charT, traits>& boost::basic_regex<charT, traits>::do_assign(c onst charT*, const charT*, boost::regex_constants::syntax_option_type) [with cha rT = char, traits = boost::regex_traits<char, boost::cpp_regex_traits<char> >]' /u2/temp/boost_1_33_1/boost/regex/v4/instances.hpp:160: instantiated from here /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex_parser.hpp:1899: warning: sorry : semantics of inline function static data 'const char s_punct [5]' are wrong (y ou'll wind up with multiple copies) /u2/temp/boost_1_33_1/boost/regex/v4/basic_regex_parser.hpp:1899: warning: you can work around this by removing the initializer When compiling finished libraries do not link. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=207586&aid=1689432&group_… ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs [View Less]

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