October 2014 - Boost - lists.preview.boost.org

[Boost.DLL] Formal Review request
by Antony Polukhin 21 Nov '14

21 Nov '14

Dear Boost, Some time passed since checking interest in plugin development library and now all the requested features are implemented (self loading, getting symbol location, better docs, automatic platform-specific library decorations append, much more examples, listing library exports and so on...). While there's still some room for minor improvements, library API is stable and the library will benefit greatly from a larger user base and more feedback. So unless someone thinks the library isn't ready or would get rejected right away in its current state for reason X, I am requesting a formal review for Boost.DLL. Library location: https://github.com/apolukhin/Boost.DLL Library Docs: http://apolukhin.github.io/Boost.DLL/index.html -- Best regards, Antony Polukhin

10 40

Re: [boost] Is there interest in a library for string-convertible enums?
by Felix Uhl 05 Nov '14

05 Nov '14

Gavin Lambert wrote: > Features that I would expect of such a library: > - support for arbitrary non-contiguous values. > - enum value to string. > - string to enum value. That's done already. > - list of all valid values, either as strings or values. > - can indicate whether a given value (string or enum) is a member of > the enumeration. Easy, will do. > - can round-trip (enum -> string -> enum) values that are not members > of the enumeration; of course (string -> enum -> string) is not feasible > for non-members. What would a conversion from an enum that is not a member to a string look like? Should it just be converted to the string representation of the underlying type like “7”? Or something like “MyEnum::7”? Or would the string representation solve a term with bitwise OR like so: “one|two|four”? The latter would be very interesting for bitwise flag enums. > - can specify a custom string value that the enum value generates (not > just the BOOST_PP_STRINGIZE). Yeah I will implement that. Not sure why one would want it, it does nothing but induce confusion in my eyes, but I’m not the one to tell you what to do. > Features that would be nice, but not necessarily expected: > - enum to string and back for "bitwise flag" style enums (eg. CSV names). Not sure what you mean by that, because the regular string conversions work for those just as fine. Do you mean what I wrote above with the OR connected values in a string representation? > - some mapping to std::bitset or similar. That would be interesting! I’ve added it to the feature list, but it will probably take some time . > - can specify multiple string values that map to the same enum value. Hm. I’m not sure if I’d want that, or how that could even be implemented. If somebody wanted non-casesensitive behaviour, it would be better to use a std::string with custom char_traits, and that’s something I’ll definitely offer. > - can specify different conversion tables for the same enum type (for > use in different contexts, eg. serialisation vs. user output). I thought about that, too. I already give the option to choose between std::maps and a linear search for lookups, but I would really like to give the client more options. Those were good suggestions, thank you very much! You’ve given me quite some things to work on, but now I’ve got a pretty decent feature list. --- Felix Uhl Von: Gavin Lambert Gesendet: ‎Mittwoch‎, ‎29‎. ‎Oktober‎ ‎2014 ‎00‎:‎57 An: boost(a)lists.boost.org On 29/10/2014 00:09, Felix Uhl wrote: > So far, the only way to convert an enumeration value to a string is > a lot of boilerplate code consisting of switch case statements for > every single possible value of the enum. Not the only way. The method I use is to create a lookup table via a little macro magic. Granted that I'm then doing a linear scan through the table (whereas a switch statement could be more efficient, or knowledge that the enum is contiguous and could therefore do an index lookup), but having a table allows for other useful queries, and I wanted something that could be defined statically. As a side-benefit (that undoubtedly will horrify some people), the way the code was implemented also allows it to act as a string-to-member-pointer lookup table, which can be quite handy for typed property bags and the like with a string lookup key. > What features would you want from such a library? Features that I would expect of such a library: - support for arbitrary non-contiguous values. - enum value to string. - string to enum value. - list of all valid values, either as strings or values. - can indicate whether a given value (string or enum) is a member of the enumeration. - can round-trip (enum -> string -> enum) values that are not members of the enumeration; of course (string -> enum -> string) is not feasible for non-members. - can specify a custom string value that the enum value generates (not just the BOOST_PP_STRINGIZE). Features that would be nice, but not necessarily expected: - enum to string and back for "bitwise flag" style enums (eg. CSV names). - some mapping to std::bitset or similar. - can specify multiple string values that map to the same enum value. - can specify different conversion tables for the same enum type (for use in different contexts, eg. serialisation vs. user output). _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost

3 2

[ANN] "The Boost C++ Libraries", 2nd edition available
by Boris Schäling 03 Nov '14

03 Nov '14

Just a quick announcement: The 2nd edition of my book "The Boost C++ Libraries" is available. - It introduces 72 Boost libraries. - It contains more than 430 examples. - The print version has about 570 pages. - There is also a Kindle, Epub and PDF version. - It's even online: <http://theboostcpplibraries.com/> A special "thank you" goes to Niall who handled this year's Google Summer of Code program so smoothly that I as a backup admin didn't need to do anything - and had enough time to work on the book. :) Boris

6 8

[1.57.0] Release candidates available
by Marshall Clow 01 Nov '14

01 Nov '14

[ Please disregard previous message; apparently I am brain-dead this morning. The uploaded files are correct, though. ] Release candidate files for 1.57.0 are available at http://boost.cowic.de/rc/ As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy. This helps ensure the candidates build OK before we push them out to SourceForge. The files (and associated md5s) are: MD5 (./boost_1_57_0_rc1.7z) = 17c98dd78d6180f553fbefe5a0f57d12 MD5 (./boost_1_57_0_rc1.tar.bz2) = 1be49befbdd9a5ce9def2983ba3e7b76 MD5 (./boost_1_57_0_rc1.tar.gz) = 25f9a8ac28beeb5ab84aa98510305299 MD5 (./boost_1_57_0_rc1.zip) = 5e040e578e3f0ba879da04a1e0cd55ff Thanks! -- The release managers P.S. Release notes are here: http://www.boost.org/users/history/version_1_57_0.html

1 1

Enhancing regression tests summary
by Adam Wulkiewicz 31 Oct '14

31 Oct '14

Hi, Some time ago I was writing about regression summaries enhancements, that I'd be nice to see more meaningful list of errors, etc. I asked questions, even prepared a PR for regression, to no avail. So I developed a simple program downloading summaries, test logs and saving the enhanced result. You may check it out here: https://github.com/awulkiew/summary-enhancer Regards, Adam

5 8

[regression] [develop] OSError: [Errno 2] No such file or directory: any_test.test
by Suckow, Thomas J 31 Oct '14

31 Oct '14

# Running Boost.Build tests Traceback (most recent call last): File "run.py", line 83, in <module> runner(root) File "/Boost_Regression_Develop/tools_regression_src/regression.py", line 264, in __init__ self.main() File "/Boost_Regression_Develop/tools_regression_src/regression.py", line 650, in main getattr(self,action_m)() File "/Boost_Regression_Develop/tools_regression_src/regression.py", line 615, in command_regression self.command_test() File "/Boost_Regression_Develop/tools_regression_src/regression.py", line 394, in command_test self.command_test_boost_build() File “/Boost_Regression_Develop/tools_regression_src/regression.py", line 438, in command_test_boost_build "boost/bin.v2/libs/any/test/any_test.test")); OSError: [Errno 2] No such file or directory: ‘/Boost_Regression_Develop/results/boost/bin.v2/libs/any/test/any_test.test’ Looks like everyone but teeks is failing to build. - Thomas

3 4

[1.56.0] Release candidates available
by Marshall Clow 31 Oct '14

31 Oct '14

Release candidate files for 1.65.0 are available at http://boost.cowic.de/rc/ As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy. This helps ensure the candidates build OK before we push them out to SourceForge. The files (and associated md5s) are: MD5 (./boost_1_57_0_rc1.7z) = 17c98dd78d6180f553fbefe5a0f57d12 MD5 (./boost_1_57_0_rc1.tar.bz2) = 1be49befbdd9a5ce9def2983ba3e7b76 MD5 (./boost_1_57_0_rc1.tar.gz) = 25f9a8ac28beeb5ab84aa98510305299 MD5 (./boost_1_57_0_rc1.zip) = 5e040e578e3f0ba879da04a1e0cd55ff Thanks! -- The release managers P.S. Release notes are here: http://www.boost.org/users/history/version_1_57_0.html

1 0

[PropertyTree][variant] Reading JSON into a recursive variant.
by Arindam Mukherjee 31 Oct '14

31 Oct '14

I have a recursive variant definition that can handle JSON data. Is there a way to read JSON data using PropertyTree into a recursive JSON? Here is the variant defn. #define BOOST_VARIANT_NO_FULL_RECURSIVE_VARIANT_SUPPORT #include <boost/variant.hpp> JSONNullType {}; boost::variant<std::string, double, bool, JSONNullType> jsonToken; typedef boost::make_recursive_variant< std::string, double, JSONNullType, std::map<std::string, boost::recursive_variant_>, std::vector<boost::recursive_variant_> >::type JSONValue; Regards, Arindam

1 0

Re: [boost] Coming up on 1.57 release date - get your fixes in
by Felix Uhl 30 Oct '14

30 Oct '14

Edward Diener wrote: > Marshall Clow wrote: > > Just this morning we received a report of Boost.PP failing on VS 2013. > > It is not failing. It is just giving a warning. I don’t know for sure, but Marshall may be referring to this ticket: https://svn.boost.org/trac/boost/ticket/10686 On VS2013, VARIADICS and MSVC_VARIADICS don’t get defined despite the fact that they should, rendering some variadic macros useless. Von: Edward Diener Gesendet: ‎Donnerstag‎, ‎30‎. ‎Oktober‎ ‎2014 ‎04‎:‎10 An: boost(a)lists.boost.org On 10/29/2014 10:50 AM, Marshall Clow wrote: > We’ll be closing the master branch tomorrow (Thursday) for the 1.57.0 release. > Changes not in by then will not go into the release. > > Also, what issues in the beta have not been addressed? > >> Visual C++ 14 CTP 4 without BOOST_MSVC_ENABLE_2014_JUN_CTP: all libraries >> built successfully (but some are not usable, mostly because of missing >> noexcept) > >> >> All projects using Boost I tried (Debug 32-bit + 64-bit) compiled >> successfully with MSVC12. For MSVC14, TypeTraits 9de6a49 is missing in >> master. > > I believe that these have been merged. > >> Interprocess is broken for MinGW and there are some issues with Intrusive in GCC. I've committed fixes for both. > > I believe that this has been merged. > > Thread fixes have been merged. > > I do not know if the patches described in http://lists.boost.org/Archives/boost/2014/10/217257.php have been merged. > >> range/detail/any_iterator.hpp is broken because it expects >> postfix_increment_proxy and writable_postfix_increment_proxy to be in >> namespace boost::detail, but they are in boost::iterators::detail now. > > This does NOT appear to have been fixed > >> boost serialization is still broken(said so: http://article.gmane.org/gmane.comp.lib.boost.user/82715 ) and to date i do know no workaround to get my library to work on fx Arch Linux without telling users to rebuild with boost 1.55 (or sending them a saved package from my system…) > > I do not know what the status of this is; but there have been no commits to range/master in October. > > Just this morning we received a report of Boost.PP failing on VS 2013. It is not failing. It is just giving a warning. _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost

2 1

[testing] Compile failures on MSVC (teeks)
by Andrey Semashev 30 Oct '14

30 Oct '14

Hi, I'm seeing weird compilation failures on Teeks (MSVC 10 and 11): http://www.boost.org/development/tests/develop/developer/output/teeks99-08c… http://www.boost.org/development/tests/develop/developer/output/teeks99-08d… The weird part is this: D:\teeks99-08\d\boost_root\boost/fusion/support/detail/result_of.hpp(32) : error C2143: syntax error : missing ',' before '...' I cannot find the boost/fusion/support/detail/result_of.hpp file in git. Am I missing something or these test machines are broken somehow?

2 1