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[multiarray] Obtain MultiArray implementation instance from base, extents, strides
by Rhys Ulerich 25 Mar '10

25 Mar '10

Hi all, I'd like to obtain an N-dimensional MultiArray implementation given a base pointer, N extents, and N strides. My use case requires padding the stride in one dimension in a way seemingly not obtainable taking views of the usual boost::multi_array_ref. Code like the following would be ideal boost::array<std::size_t,3> extents = { 2, 3, 4 }; boost::array<std::size_t,3> strides = { 1, 2, 7 }; // Note 7 not 6 boost::scoped_array<int> raw(new int[extents[2]*strides[2]]); using boost::detail::multi_array::multi_array_view; multi_array_view<int,3> a(raw.get(), extents, strides); except that the appropriate constructor in multi_array_view is private (boost/multi_array/view.hpp:442). boost::detail::multi_array::sub_array would also be ideal if it's constructor was accessible(boost/multi_array/subarray.hpp:370). I can make either accessible by #defining BOOST_NO_MEMBER_TEMPLATE_FRIENDS, but that's evil. Am I missing something in Boost.MultiArray? Or is there no publicly accessible way to provide a custom stride list? - Rhys

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asio: how to handle unreliable network/glitches/server down ?
by Avi Bahra 25 Mar '10

25 Mar '10

Ok. I am a newbie to asio so bear with me: I have the following piece of code for handling a unreliable network and/or server crashed/servicing where I do not want the client to fail. My solution basically involves looping round , sleeping and trying again. .... int no_of_tries = clientEnv.no_of_tries(); while ( no_of_tries > 0 ) { try { boost::asio::io_service io_service; Client theClient( io_service, clientEnv.get_cmd(), clientEnv.host(), clientEnv.port() ); io_service.run(); ... // Some kind of connection error fall through and try again. } catch (std::exception& e) { .... } sleep( RETRY_POLL_PERIOD ); no_of_tries--; } This does not seem right to me, but I am not sure how typical my case is. Are there any known design patterns/idioms that provide a more robust ways of handling unreliable networks/glitches and cases where the server needs to be taken down temporarily ? Best regards, Ta, Avi

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[Bind][Lambda] Processing containers of pointers
by Robert Jones 25 Mar '10

25 Mar '10

Hi All I believe boost.bind has the capability to look through pointers and smart pointers to transparently process the pointed-to objects. Does boost.lambda.bind also have this capability? I.e., this bit of code (and I am specifically using boost 1.37 for this btw) #include <boost/lambda/lambda.hpp> #include <boost/lambda/bind.hpp> #include <boost/lambda/construct.hpp> #include <boost/shared_ptr.hpp> #include <algorithm> #include <vector> struct A { A( int ); void f( ); }; int main( ) { using namespace boost::lambda; std::vector< A * > pv; std::vector< boost::shared_ptr< A > > sv; std::for_each( pv.begin( ), pv.end( ), bind( &A::f, _1 ) ); std::for_each( sv.begin( ), sv.end( ), bind( &A::f, _1 ) ); // error here. } Thanks, - Rob.

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Boost.Proto embedding a function calls into expressions
by Stefan Frehse 25 Mar '10

25 Mar '10

Hello Boost.Proto, firstly, thank you very much for your great work for providing such a powerful framework. My Setup: I defined a grammar, like grammar * grammar, a domain and so on. Based on the domain two evaluator for different contexts are provided. For standard operators that works great. For expression evaluation I have a function defined as follow: template<typename T, typename Expr, typename Arg0, typename Arg1, ... > generate (T& t, Expr const& expr, Arg0 const& arg0, ... ) { call the first or the second evaluator switched by T and passes the value arg0, ... } Therewith, I can write for example, generate (foo, _1 * _2, a, b); Coming to my problem. I would like to write, generate (foo, _1 * func (_2, _3), a ,b, c); Overall I would like to embedd function calls into the expression and the pass them to the generate function. I tried to implement a make_expr based on func, but that does not work for me, i.e., compiler error for fmi::ite (_0, _1, _2) (a,b,c); error: invalid use of incomplete type 'struct fmi::ite_::result<fmi::ite_(boost::fusion::vector1<const fmi::bv&>, boost::fusion::vector1<const fmi::bv&>, boost::fusion::vector1<mpl_::void_&>)>' error: declaration of 'struct fmi::ite_::result<fmi::ite_(boost::fusion::vector1<const fmi::bv&>, boost::fusion::vector1<const fmi::bv&>, boost::fusion::vector1<mpl_::void_&>)>' cpp:7: Can you imaging what the problem is? Otherwise I will attach further cleaned code. struct ite_ { template<typename Sig> struct result; template<typename This, typename If, typename Then, typename Else> struct result<This(If const&, Then const&, Else const&)> : fusion::result_of::make_vector<bv> {}; template<typename If, typename Then, typename Else> fusion::result_of::make_vector<bv>::type operator() (If const& _if, Then const& _then, Else const& _else) const { bv test; /// some more code return fusion::make_vector (test); } }; template<typename If, typename Then, typename Else> typename proto::result_of::make_expr<proto::tag::function , constraint_domain , ite_ const , If const& , Then const& , Else const&>::type ite (If const& _if, Then const& _then, Else const& _else) { return proto::make_expr<proto::tag::function, constraint_domain>( ite_() , boost::ref(_if) , boost::ref(_then) , boost::ref(_else)); } Examplarily, the placeholder definition: typedef constraint<proto::terminal<placeholder<mpl::int_<0> > >::type> var0_type Best wishes, sfrehse

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[iostreams] bzip2 filter fails with large file on Xen system
by Nicola 25 Mar '10

25 Mar '10

Hello, I've tried the example at http://www.boost.org/doc/libs/1_42_0/libs/iostreams/doc/index.html It works correctly on small files (a few kb), but it raises the exception "bzip2 error" on a file as large as ~270Mb, when compiled with g++ 4.2, with no special flags, on a 64 bit Linux Xen system. On another system (Mac OS X), the example runs fine on that same file. Here is some info about the system: Linux kernel: 2.6.24-26-xen bzlib2: 1.0.4-2ubuntu4 Boost: 1.42.0 Are there known incompatibilities with that system or with virtualization environments in general? Is there any "self-test" that I can run to test the library? Nicola

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Re: [Boost-users] Problems with copying view on mpl set on solaris compiler.
by Jonathan Chambers` 25 Mar '10

25 Mar '10

I've been having a poke around in the boost source code boost/mpl/set/aux_/iterator.hpp and I've found that if I tweak the partial specialization template <typename Set, typename Tail> struct next< s_iter< Set, Tail > > : s_iter_get< Set, typename Tail::base > { }; to template <typename Set, typename Tail> struct next< s_iter< Set, Tail > > { typedef typename s_iter_get< Set, typename Tail::base >::type type; }; Then everything works fine on solaris S1S12u1. Is there a problem with S1S12u1 wrt to deep metafunction forwarding? Is this a suitable workaround? I've still not figured out why the boost::mpl::copy works ok with sets ( surely they will also have to use s_iter_get during the fold ) - I'm assuming that the views 'invokes' boost::mpl::next in such a way which isn't supported by the compiler. From: chamber_j(a)hotmail.com To: boost-users(a)lists.boost.org Subject: Problems with copying view on mpl set on solaris compiler. Date: Mon, 22 Mar 2010 12:57:58 +0000 I'm trying to get the following to compile on solaris using S1S12u1; #include <boost/mpl/copy.hpp> #include <boost/mpl/set.hpp> #include <boost/type_traits.hpp> #include <boost/mpl/placeholders.hpp> #include <boost/mpl/inserter.hpp> #include <boost/mpl/insert.hpp> #include <boost/mpl/filter_view.hpp> typedef boost::mpl::copy< boost::mpl::filter_view< boost::mpl::set<int>, boost::is_same<boost::mpl::_, int> >, boost::mpl::inserter< boost::mpl::set<>, boost::mpl::insert<boost::mpl::_, boost::mpl::_> > >::type type; template <class undefined> struct Debug; Debug<type> debug; int main(int argc, char *argv[]) { return 0; } and I get the following compiler errors "boost_1_42_0/boost/mpl/aux_/filter_iter.hpp", line 66: Error: Redefining boost::mpl::next<boost::mpl::T> after use in boost::mpl::aux::filter_i ter<boost::mpl::s_iter<boost::mpl::set<int, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_ ::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::s_item<int, boost::mpl::set0<mpl_::na>>>, boo st::mpl::s_iter<boost::mpl::set<int, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, m pl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::set0<mpl_::na>>, boost::mpl::protect<boost::mpl::bin d2<boost::mpl::quote2<boost::is_same<boost::T, boost::U>, mpl_::void_>, mpl_::arg<-1>, int>, 0>>. "boost_1_42_0/boost/mpl/next_prior.hpp", line 31: Where: While specializing "boost::mpl::aux::filter_iter<boost::mpl::s_iter<boost::mpl::set <int, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mp l_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::s_item<int, boost::mpl::set0<mpl_::na>>>, boost::mpl::s_iter<boost::mpl::set<int, c har, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::set0<mpl_::na>>, boost::mpl::protect<boost::mpl::bind2<boost::mpl::quote2<boost::is_same<b oost::T, boost::U>, mpl_::void_>, mpl_::arg<-1>, int>, 0>>". "boost_1_42_0/boost/mpl/next_prior.hpp", line 31: Where: Specialized in boost::mpl::next<boost::mpl::aux::filter_iter<boost::mpl::s_iter<boo st::mpl::set<int, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::s_item<int, boost::mpl::set0<mpl_::na>>>, boost::mpl::s_iter<boost::mpl ::set<int, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::n a, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::set0<mpl_::na>>, boost::mpl::protect<boost::mpl::bind2<boost::mpl::quote2<boos t::is_same<boost::T, boost::U>, mpl_::void_>, mpl_::arg<-1>, int>, 0>>>. "boost_1_42_0/boost/mpl/aux_/preprocessed/plain/fold_impl.hpp", line 162: Where: Specialized in boost::mpl::aux::fold_impl<-1, boost::mpl::a ux::filter_iter<boost::mpl::s_iter<boost::mpl::set<int, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mp l_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::s_item<int, boost::mpl::set0<mpl_ ::na>>>, boost::mpl::s_iter<boost::mpl::set<int, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::set0<mpl_::na>>, boost::mpl::protect<boo st::mpl::bind2<boost::mpl::quote2<boost::is_same<boost::T, boost::U>, mpl_::void_>, mpl_::arg<-1>, int>, 0>>, boost::mpl::aux::filter_iter<boost ::mpl::s_iter<boost::mpl::set<int, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl _::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::set0<mpl_::na>>, boost::mpl::s_iter<boost::mpl::set<in t, char, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_: :na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::mpl::set0<mpl_::na>>, boost::mpl::protect<boost::mpl::bind2<boost::mpl::quote2<boost::is_sa me<boost::T, boost::U>, mpl_::void_>, mpl_::arg<-1>, int>, 0>>, boost::mpl::set<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_ ::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost:: mpl::insert<mpl_::arg<-1>, mpl_::arg<-1>, mpl_::na>>. "boost_1_42_0/boost/mpl/fold.hpp", line 39: Where: Specialized in boost::mpl::fold<boost::mpl::filter_view<boost::mpl::set<int, char, mpl_:: na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::is_same<mpl_::arg<-1>, int>>, boost::mpl::set<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boo st::mpl::insert<mpl_::arg<-1>, mpl_::arg<-1>, mpl_::na>>. "boost_1_42_0/boost/mpl/copy.hpp", line 36: Where: Specialized in boost::mpl::aux::copy_impl<boost::mpl::filter_view<boost::mpl::set<int, ch ar, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::is_same<mpl_::arg<-1>, int>>, boost::mpl::inserter<boost::mpl::set<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl _::na, mpl_::na, mpl_::na>, boost::mpl::insert<mpl_::arg<-1>, mpl_::arg<-1>, mpl_::na>>>. "boost_1_42_0/boost/mpl/copy.hpp", line 54: Where: Specialized in boost::mpl::copy<boost::mpl::filter_view<boost::mpl::set<int, char, mpl_:: na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::is_same<mpl_::arg<-1>, int>>, boost::mpl::inserter<boost::mpl::set<mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl _::na, mpl_::na>, boost::mpl::insert<mpl_::arg<-1>, mpl_::arg<-1>, mpl_::na>>>. "filter_view.cpp", line 19: Where: Specialized in non-template code. "filter_view.cpp", line 24: Error: In this declaration "debug" is of an incomplete type "Debug<boost::mpl::s_item<int, boost::mpl::set0<mpl_::na >>>". 2 Error(s) detected. You can see by the debug that the program has managed to deduce the correct type, even though it errored. On GCC-4.1.1 this gives filter_view.cpp:24: error: aggregate 'Debug<boost::mpl::s_item<int, boost::mpl::set0<mpl_::na> > > debug' has incomplete type and cannot be defined Which is exactly what I want. Anyone else had these issues, found workarounds, etc? This problem also occurs with boost::mpl::transform_view, but appears to work for boost::mpl::joint_view. Any help appreciated. Jon. Do you have a story that started on Hotmail? Tell us now _________________________________________________________________ Tell us your greatest, weirdest and funniest Hotmail stories http://clk.atdmt.com/UKM/go/195013117/direct/01/

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How to write an IP address parser with actions to fill-in a simple struct?
by Lars Rohwedder 25 Mar '10

25 Mar '10

I have a rule like this: rule<> IP_Parser = int_p>>'.'>>int_p >>'.'>>int_p >>'.'>>int_p >> !( ('/'>>int_p)|(':'>>int_p)); Now I want to extend it that the user can use that parser to fill a simple struct: struct IP_address { std::string host; int port; int netmask; }; and use it this way: IP_address src; rule<> Source = str_p("source") >> +space_p >> IP_Parser(src) >> *space_p >> ';'; Any ideas how to do that with the old boost::spirit (boost version 1.35)? Lars R.

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[iostreams] Is it possible to use gzip compression with wide char
by Bo Jensen 25 Mar '10

25 Mar '10

Hi, I am new to boost::iostream and trying to make a simple example of iostream filtering with gzip compression for wide char, see example below. It seems there is no support in the gzip wrapper for wide char. How can I make it reading from a wide char stream ? Regards Bo #include <iostream> #include <ostream> #include <sstream> #include <boost/iostreams/device/file.hpp> #include <boost/iostreams/stream.hpp> #include <boost/iostreams/filtering_stream.hpp> #include <boost/iostreams/device/file_descriptor.hpp> #include <boost/iostreams/filter/gzip.hpp> #include <boost/config/warning_disable.hpp> #include <fstream> int main() { using namespace std; namespace io = boost::iostreams; { io::filtering_wostream out; //out.push(boost::iostreams::gzip_compressor()); // Error out.push(boost::iostreams::wfile_sink("text.gz")); out << 123 << endl; wcout <<"Done writing" << endl; } { io::filtering_wistream in; //in.push(boost::iostreams::gzip_decompressor()); // Error in.push(boost::iostreams::wfile_source("text.gz")); wcout << in.rdbuf() << endl; wcout <<"Done reading"<< endl; } }

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Re: [Boost-users] error in boost_serialization of static variable
by ashish srivastava 25 Mar '10

25 Mar '10

Hello Actually I was trying to serialize my main code using boost_serialization (this is the small program I have written to extract my actual problem of how to serialize the static int class member variable). Without boost_serialization of static int variable the code is running fine. But when I try to serialize the static int variable in "Public" of linklist class I get the error (segmentation fault). I tried to use the "BOOST_STRONG_TYPEDEF" to wrap the "int" to "tracked_int" but the effort was in vain. Kindly help me. regards,ashish --- On Wed, 24/3/10, Robert Ramey <ramey(a)rrsd.com> wrote: From: Robert Ramey <ramey(a)rrsd.com> Subject: Re: [Boost-users] error in boost_serialization of static variable To: boost-users(a)lists.boost.org Date: Wednesday, 24 March, 2010, 9:22 AM ashish srivastava wrote: > Hello > I am having some problem in executing the code of > boost_serialization. I'm trying to serialize the static class member > variable. For that purpose I have wrapped the int static variable to > tracked_int static variable. Please find the code attached with this > mail. > > This is how I'm running the code and getting the segmentation fault. > --------------------------------------------------------- > $ g++ test_serialization_linklist.cpp -l boost_serialization > $ ./a.out > do u want to continue adding more nodes into the link list (y/n) ??y > do u want to continue adding more nodes into the link list (y/n) ??y > do u want to continue adding more nodes into the link list (y/n) ??n > 5 > 6 > 6 > 6 > > the number of nodes present in the list = 4 > Segmentation fault > I looked at the program. you save one instance through a pointer ar & start you load one instance though a pointer ar & newg then you try to loop starting at newg. This won't work as there is only one pointer. Try using std::list rather than your own "list" class. Robert Ramey -----Inline Attachment Follows----- _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. http://in.yahoo.com/

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Problem with boost regex and icu support.
by Jason Pollock 25 Mar '10

25 Mar '10

Hello everyone, new boost user here. :) I'm attempting to use the regular expression library with ICU support and I'm running into a coredump inside of boost. The following test program is dumping core depending on the regular expression. Replacing the " " with a ".*" results in a crash. Can anyone provide a hint about why? Any tips that anyone could offer would be appreciated. I've pasted both the test and the backtrace below, because I don't know what the list rules are for attachments. Thank you in advance, Jason Pollock =========================================================================== #include <boost/regex.hpp> #include <boost/regex/icu.hpp> #include <iostream> #include <string> /* test$ uname -a SunOS ab8 5.9 Generic_118558-34 sun4u sparc SUNW,Sun-Fire-V240 test$ gcc --version gcc (GCC) 3.2.3 Copyright (C) 2002 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. Boost Version: 1.42.0 ICU Version: ICU 4c - 4.2.1 test$ ./boost_sample "^QUERY.*[0-9][0-9]*" test$ ./boost_sample "^QUERY [0-9][0-9]*" Bus Error (core dumped) */ int main(int argc, char **argv) { std::string line; int flags = boost::regex_constants::extended; try { UnicodeString uPattern = UnicodeString::fromUTF8(argv[1]); const boost::u32regex pat = boost::make_u32regex(uPattern, flags); } catch (std::exception &e) { std::cerr << "Exception raised: " << e.what() << std::endl; } return 0; } ============================================================================== #0 0x0005d5f0 in boost::re_detail::basic_regex_creator<int, boost::icu_regex_traits>::append_set () #1 0x00054adc in boost::re_detail::basic_regex_parser<int, boost::icu_regex_traits>::parse_set () #2 0x0004cb54 in boost::re_detail::basic_regex_parser<int, boost::icu_regex_traits>::parse_extended () #3 0x00049a00 in boost::re_detail::basic_regex_parser<int, boost::icu_regex_traits>::parse () #4 0x00046d74 in boost::basic_regex<int, boost::icu_regex_traits>::do_assign () #5 0x000446c0 in boost::basic_regex<int, boost::icu_regex_traits>::assign (this=0xffbff770, p1=0x10aa828, p2=0x10aa870, f=2163456) at include/boost/regex/v4/basic_regex.hpp:425 #6 0x0004465c in boost::basic_regex<int, boost::icu_regex_traits>::assign<int*> (this=0xffbff770, arg_first=0xffbff558, arg_last=0x10aa828, f=2163456) at include/boost/regex/v4/basic_regex.hpp:477 #7 0x00044424 in boost::basic_regex<int, boost::icu_regex_traits>::basic_regex<boost::u16_to_u32_iterator<unsigned short const*, int> > (this=0xffbff770, arg_first= {<iterator_facade<boost::u16_to_u32_iterator<const short unsigned int*, int>,int,std::bidirectional_iterator_tag,const int,int>> = {<No data fields>}, static pending_read = <optimized out>, m_position = 0x5e, m_value = 81}, arg_last= {<iterator_facade<boost::u16_to_u32_iterator<const short unsigned int*, int>,int,std::bidirectional_iterator_tag,const int,int>> = {<No data fields>}, static pending_read = <optimized out>, m_position = 0x10aa7d0, m_value = -1}, f=2163456) at include/boost/regex/v4/basic_regex.hpp:447 #8 0x000442d0 in boost::re_detail::do_make_u32regex<unsigned short const*> (i=0x10aa7e0, j=0x10aa7d0, opt=2163456) at include/boost/regex/icu.hpp:260 #9 0x00044214 in boost::make_u32regex (s=@0xffbff778, opt=2163456) at include/boost/regex/icu.hpp:381 #10 0x00044014 in main (argc=-4196488, argv=0xffbff81c) at boost_sample.cc:33

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