http://blog.gmane.org/gmane.comp.lib.boost.user hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.lib.boost.user/42303 Hi all, The review of the Robert Kawulak's Constrained Value library begins today December 1, 2008, and will end on December 10th -- I will be the review manager. Please post reviews to the developer list. Here's the library synopsis: The Boost Constrained Value library contains class templates useful for creating constrained objects. A simple example is an object representing an hour of a day, for which only integers from the range [0, 23] are valid values. bounded_int<int, 0, 23>::type hour; hour = 20; // OK hour = 26; // exception! Behavior in case of assignment of an invalid value can be customized. The library has a policy-based design to allow for flexibility in defining constraints and behavior in case of assignment of invalid values. Policies may be configured at compile-time for maximum efficiency or may be changeable at runtime if such dynamic functionality is needed. The library can be downloaded from the here: http://rk.go.pl/f/constrained_value.zip The docume Jeff Garland 2008-12-01T12:30:58 http://comments.gmane.org/gmane.comp.lib.boost.user/42298 When using the -Wundef flag with gcc, I get warnings like the following: error: "BOOST_MSVC" is not defined At least once before this was brought up on the lists: http://lists.boost.org/boost-users/2006/10/22819.php The suggested solution is to disable this warning. However, it seems to make more sense to just fix this in Boost (using #if defined(...) or #ifdef). Why not make this fix in Boost? Yang Zhang 2008-12-01T09:55:42 http://comments.gmane.org/gmane.comp.lib.boost.user/42296 Hi! I am trying to install boost 1.37 on Leopard 10.5.2. I have put boost_1_37_0 in my home directory and I have successfully compiled and executed a header only application. I am following the following instructions: http://www.boost.org/doc/libs/1_37_0/more/getting_started/unix-variants.html When I try to run ./configure --help I get a permission denied error. -bash: ./configure: Permission denied When I say sudo: ./configure sudo: ./configure: command not found The configure file is certainly there. I have even tried to make it readable and writable by everyone. Any ideas? Thanks. framebuffer 2008-12-01T03:52:41 http://comments.gmane.org/gmane.comp.lib.boost.user/42295 Hi all, the review of Andy Tompkins' UUID library ends today, November 30th. Nevertheless, it's still possible to submit a review for at least a week, as I'm not going to have time for the analysis of the review before Christmas. Thanks to all of you who submitted a review. Regards Hartmut Review Manager Hartmut Kaiser 2008-12-01T01:14:17 http://comments.gmane.org/gmane.comp.lib.boost.user/42292 Hi, I'm trying to read dates in "%d%m%Y" (DDMMYYYY). Unfortunately, it doesn't work. Here is the code: #include <string> #include <stdexcept> #include <iostream> #include "boost/date_time/gregorian/gregorian.hpp" using std::string; using namespace boost::gregorian; using boost::date_time::not_a_date_time; using std::cout; using std::cin; using std::endl; using std::locale; int main() { try { date dt( not_a_date_time ); date_facet* facet(new date_facet("%d%m%Y")); cout.imbue( locale( cout.getloc(), facet ) ); cin.imbue( locale( cin.getloc(), facet ) ); cout.exceptions( std::ios_base::failbit ); cin.exceptions( std::ios_base::failbit ); cin >> dt; cout << dt << endl; } catch ( const std::exception& e ) { cout << typeid(e).name() << " " << e.what(); } return 0; } Here program output: If date is assigned programmaticaly, then cout does work as expected and the date output is in %d%m%Y format. I've tried Sergey Skorokhodov 2008-11-30T17:51:18 http://comments.gmane.org/gmane.comp.lib.boost.user/42282 _______________________________________________ Boost-users mailing list Boost-users< at >lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Ken zhang 2008-11-29T18:40:23 http://comments.gmane.org/gmane.comp.lib.boost.user/42280 Hi, I try to compile boost 1.3.7 on an Vista64 pc. What I do: bjam --toolset=msvc --build-dir=lib64 --build-type=complete address-model=64 stage -sZLIB_INCLUDE=C:/Projekte/3D/opennurbs/zlib -sBZIP2_INCLUDE=C:/Projekte/C++/bzip2-1.0.5 >log.txt But I always get errors for not founding "zlib.h" and "bzlib.h". Attached is the log from compilation. Thanks for any hint, Patrik warning: Graph library does not contain optional GraphML reader. note: to enable GraphML support, set EXPAT_INCLUDE and EXPAT_LIBPATH to the note: directories containing the Expat headers and libraries, respectively. error: No best alternative for libs/iostreams/build/boost_zlib next alternative: required properties: (empty) matched next alternative: required properties: (empty) matched error: No best alternative for libs/iostreams/build/boost_bzip2 next alternative: required properties: (empty) matched next alternative: required properties: (empty) matched error: No best alte Patrik Mueller 2008-11-29T12:18:18 http://comments.gmane.org/gmane.comp.lib.boost.user/42279 I have a large number of custom unary and bin ary function that I map using unary_expr and binary_expr. The problem is the following : my grammar has integral or floating point scalar terminal. So, when I want to create a binary function that takes any elements of my domain, I'm boudn to do the following : template<class L,class R> typename result_of::make_expr<....>::type my_custom_binary_func( L const& l, R const& r ) { return make_expr( ... ); } Alas, as I already discussed with Eric, nothign prevent me to use my_custom_binary_func over types that aren't in my grammar. To do so, I was told to use SFINAE to prune unwanted element by matching the result type of make_expr on my grammar. However, this proves cumbersome and slow down compile time by *a large factor* when I have a large number of such function (and I have like 50 or 60). So i wandered into proto source code and looked at how proto solves this problem for its binary operator. This solution seems more elegant but as it live sin proto:: Joel Falcou 2008-11-29T16:02:33 http://comments.gmane.org/gmane.comp.lib.boost.user/42277 Hi, I found a minor error in the Boost String Algorithms documentation for Boost 1.37. http://www.boost.org/doc/libs/1_37_0/doc/html/boost/algorithm/is_less.html Documentation states "Compare two operands using > operator", when implementation use < operator. http://www.boost.org/doc/libs/1_37_0/doc/html/boost/algorithm/is_not_greater.html Documentation states "Compare two operands using > operator", when implementation use <= operator. Best regards, Anders Dalvander Anders Dalvander 2008-11-29T11:50:38 http://comments.gmane.org/gmane.comp.lib.boost.user/42268 _______________________________________________ Boost-users mailing list Boost-users< at >lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Chaman Singh Verma 2008-11-28T12:53:25 http://comments.gmane.org/gmane.comp.lib.boost.user/42267 _______________________________________________ Boost-users mailing list Boost-users< at >lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Sofia Aparicio Secanellas 2008-11-28T09:18:34 http://comments.gmane.org/gmane.comp.lib.boost.user/42260 _______________________________________________ Boost-users mailing list Boost-users< at >lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Sean Farrow 2008-11-28T08:26:09 http://comments.gmane.org/gmane.comp.lib.boost.user/42259 hi all, i'm trying to ignore unecognized lines of input (so following lines can be processed without the parse failing). eg: very simple scenario as follows: ///=================================================== { using namespace boost::spirit; typedef file_iterator<char> iterator_t; typedef scanner<iterator_t, scanner_policies_t> scanner_t; typedef rule<scanner_t> rule_t; int red=0, green=0, blue=0; rule_t option = (str_p("red") >> '=' >> int_p[assign(red)]) | (str_p("green") >> '=' >> int_p[assign(green)]) | (str_p("blue") >> '=' >> int_p[assign(blue)]) | ; iterator_t first(filename.c_str()); if (!first) return; iterator_t last = first.make_end(); parse(first, last, *option, space_p); } ///=================================================== wiw is a parser that will skip over the unrecognized line with input like this: ------------------ red = 255 kermit = green green = 128 blue = 128 ------------------ and correctly interpret the green and blue values.. i played ar jono 2008-11-28T03:17:11 http://comments.gmane.org/gmane.comp.lib.boost.user/42257 Hello, I am trying to get started with boost.python. When following the tutorial http://www.boost.org/doc/libs/1_37_0/libs/python/doc/tutorial/doc/html/python/hello.html I get the same problems that have been described in https://bugs.launchpad.net/ubuntu/+source/boost/+bug/164551, namely: $ bjam --toolset=gcc test Jamroot:18: in modules.load rule python-extension unknown in module Jamfile</usr/share/doc/libboost-doc/examples/libs/python/example>. /usr/share/boost-build/build/project.jam:312: in load-jamfile /usr/share/boost-build/build/project.jam:68: in load /usr/share/boost-build/build/project.jam:170: in project.find /usr/share/boost-build/build-system.jam:248: in load /usr/share/boost-build/kernel/modules.jam:261: in import /usr/share/boost-build/kernel/bootstrap.jam:132: in boost-build /usr/share/doc/libboost-doc/examples/libs/python/example/boost-build.jam:7: in module scope $ This may be an Ubuntu problem, but there was no reaction on the bug report since one year. Can you suggest a solution or expl Patrick Meier 2008-11-27T23:01:40 http://comments.gmane.org/gmane.comp.lib.boost.user/42243 _______________________________________________ Boost-users mailing list Boost-users< at >lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Neal Meyer 2008-11-26T22:14:49 http://comments.gmane.org/gmane.comp.lib.boost.user/42240 Hi All, I'm using boost::iostreams and its filters to compress and decompress data. However I'm not able to retrieve number of bytes really written (number of bytes after a compression). Does anybody know how to do that? I'm currently using following code: coffset if offset to where start with writing of compressed data and after call it shall contain the length of the file. This works good to get length of the compressed block unless block of data is written somewhere in the middle of the file thus end of file is not the same as the last offset where compressed data has been written to. io::file_descriptor file(fd); file.seek(coffset, ios_base::beg); { io::filtering_ostream out; // Push the compression filter (bl->type.push(out);) out.push(file); io::write(out, buf, length); // Destroying the object 'out' causes all filters to // flush. } // Update raw length of the file. // coffset = file.seek(0, ios_base::end); Thank you for any help, Milan Svoboda Milan Svoboda 2008-11-26T19:43:03 http://comments.gmane.org/gmane.comp.lib.boost.user/42238 Hi, I'm trying to use the Program Options library to parse command line arguments and config files. I can do this with moderate success. I am currently stuck on a solution to the problem of unrecognized options that are present in a config file. It seems that parse_config_file() does not have an obvious way to not abort reading a config file once it finds something that isn't declared in the options description. Any help on how to get around this (or just a kind of "hey you missed this bit of the manual" kind of pointer) would be very welcome. Thanks, Kevin Kevin Channon 2008-11-26T18:11:47 http://comments.gmane.org/gmane.comp.lib.boost.user/42234 Hi there, I'm not actually sure this is a boost problem but I'll give it a try and ask for your opinion. Boost version is 1.36 I have a daemon here realising a web interface using pion and asio. Pion is also using asio. On Linux everything runs fine and I have my web interface, but using the same code on windows / vs 2005 I get the weirdest errors such as " Unhandled exception at 0x1004e55d in myapp.exe: 0xC0000005: Access violation reading location 0xcdcdcdd1." The debugger tells me this happens in function_template.hpp: #if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) template<typename R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_PARMS> typename BOOST_FUNCTION_FUNCTION< R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_ARGS>::result_type BOOST_FUNCTION_FUNCTION<R BOOST_FUNCTION_COMMA BOOST_FUNCTION_TEMPLATE_ARGS> ::operator()(BOOST_FUNCTION_PARMS) const { if (this->empty()) boost::throw_exception(bad_function_call()); return static_cast<vtable_type*>(vtable)->invoker Stephan Menzel 2008-11-26T11:57:39 http://comments.gmane.org/gmane.comp.lib.boost.user/42233 _______________________________________________ Boost-users mailing list Boost-users< at >lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Navin Shaw 2008-11-26T10:34:30 http://comments.gmane.org/gmane.comp.lib.boost.user/42229 Hi, I have updated the Maintenance Guidelines wiki page. I have take in account the minor proof-reading modifications from Steve Watanave which I have overridden by error (thanks Steve!),and added a lot of thinks, maybe too much :) Please read this mail completely before jumping to the page. This page need to be completed and reworked. Please be free to add new sections to the page or improve the current ones directly or post your comments or suggestions to this list. Here it is the table of contents. [C] 1. Motivation [C] 2. Introduction [C] 1. User code breaking cases [I] 2. Versioning individual Boost libraries [O] 3. Deprecating features [I] 4. Cross version testing [C] 3. Documentation [O] 1. Tag Boost library with specific library version [developer] [O] 2. Make feature request for each feature [developer, user] [I] 3. Include the tracked tickets on the Release notes [developer] [I] 4. List the test cases associated to the tra vicente.botet 2008-11-26T14:19:35 http://comments.gmane.org/gmane.comp.lib.boost.user/42221 _______________________________________________ Boost-users mailing list Boost-users< at >lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Mauricio Gomes 2008-11-25T18:32:04 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.lib.boost.user