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

Trac open bugs - by assignee
by Marshall Clow 19 Sep '07

19 Sep '07

[ 202 open bugs today, 203 yesterday ] If you are maintaining a library, and have not logged into the trac system at <http://svn.boost.org/trac/boost/>, please do so ASAP. Until you do that, no tickets can be assigned to you, and will remain under "None". Instructions on working with tickets can be found at: <http://svn.boost.org/trac/boost/wiki/TicketWorkflow> and a mapping of user names to "real names" can be found at: <http://svn.boost.org/trac/boost/report/16> 15 ramey 15 dgregor 13 None 12 grafik 12 doug_gregor 12 az_sw_dude 10 rogeeff 9 djowel 9 dave 7 turkanis 7 jsiek 6 nesotto 6 anthonyw 6 agurtovoy 4 witt 4 vladimir_prus 4 shammah 4 samuel_krempp 4 johnmaddock 4 <Blank> 3 pdimov 3 jbandela 3 igaztanaga 3 fcacciola 3 danielw 3 bemandawes 2 urzuga 2 nasonov 2 jmaurer 2 hubert_holin 2 hkaiser 2 ebf 1 t_schwinger 1 speedsnail 1 samuel_k 1 pavol_droba 1 mistevens 1 kaalus 1 dlwalker 1 aaron_windsor <Blank> 1033 iostreams::restrict doesn't work on an iostreams::file_source <Blank> 1070 [iostreams]boost\iostreams\copy.hpp line80 copy_impl <Blank> 823 Seekable file_descriptor_source /sink? <Blank> 824 BOOST_IOSTREAMS_HAS_LSEEK64 on Mac OS X None 1068 Mersenne twister disables streaming for Visual C++ None 1094 Finding the correct library to link (feature request for pkg-config support)h None 1187 bcp copy not needed files None 1222 lambda::ret<T> should declare result_type. None 1230 mbstate uninitialized None 1234 unbounded_array copy constructor does not compile with intel v 9.1 None 1237 Resizing symmetric matrices None 1247 Typos in "boost/random/additive_combine.hpp"_ lines 68-69 None 1252 [pool] severe overhead with unaligned sizes. None 1270 uniform_smallint doesn't compile with lagged_fibonacci random number generators None 1271 unused parameter warning in release build None 960 [random] lognormal_distribution problem None 991 [pool] aaron_windsor 778 top-level configure is broken agurtovoy 1001 gcc 4.1.2 segfaults on mpl/test/apply.cpp agurtovoy 1051 MPL header ordering triggers bug agurtovoy 1099 unable to iterate through a "non-explicitly-declared" mpl::set agurtovoy 1215 Boost 1.34.1_ mpl: Wrong workaround detection using MinGW32 (or.hpp_ line #33) agurtovoy 588 mpl::remove compile error with gcc 4.1.0 agurtovoy 640 documentation mistake anthonyw 1154 tss destruction segfaults in conjunction with dlopen/dlclose anthonyw 1168 [thread] tss crashes randomly anthonyw 1226 macro TEXT() in GetProcAddress() anthonyw 1268 xtime_cmp changes to deal with overflow were reverted anthonyw 876 xtime documentation incomplete anthonyw 881 errors when build with Apache stdcxx az_sw_dude 1028 typo in boost header: date_time/time_defs.hpp az_sw_dude 1078 from_iso_string cannot read the output from to_iso_string az_sw_dude 1098 Urgent libboost-date-time1.33.1 : bugs on ia64 ? az_sw_dude 1147 date_time library contains global #define ERROR az_sw_dude 1160 warning: month_format shadows a member of this az_sw_dude 1162 warning: ticks shadows a member of this az_sw_dude 287 wrong usage of ios_base::narrow az_sw_dude 316 date_time type conversion warning az_sw_dude 604 from_ftime incorrectly processes FILETIME filled with zeros az_sw_dude 642 operator<< for gregorian::date_duration not found az_sw_dude 889 Insane Dependencies az_sw_dude 890 date_time library supports only the current dst rule bemandawes 559 linker error mingw 3.4.5 bemandawes 752 directory_iterator doesn't work with catch bemandawes 897 exists() throws exeption on existing but locked file on wind danielw 1044 Argument pack inaccessable in a functions return type danielw 1054 Parameter takes an "infinite" amount of time to compile with the Intel compiler. danielw 1097 keyword.hpp generates many warnings C4180: qualifier applied to function type has no meaning; ignored dave 1010 linking boost.python on freebsd dave 1019 iterator_facade::pointer should be the return type of operator-> (DR 445) dave 1085 Python rules for compiling in Mac OS X dave 1096 Tutorial needs updating for BBv2 dave 1179 [boost.python] can not export a union in VC2005sp1 dave 1181 [boost.python] can modify enum value dave 1246 breakage in boost::python svn trunk dave 865 Use of C++0x keyword as identifier dave 910 gcc strict-aliasing problems with python dgregor 1002 [iostreams] close_impl<closable_tag> does not comply with spec dgregor 1003 [iostreams] copy-paste error in typedefs for wchar multichar_filters dgregor 1011 amd64: #error Boost.Numeric.Interval: Please specify rounding control mechanism. dgregor 1139 [iostreams] Regex filter segfaults when zero matches found dgregor 1140 boost::iostreams linked_streambuf bug dgregor 1149 Minor doc error in basic_null_device dgregor 1164 Floyd Warshall broken with unsigned edge weights dgregor 1185 iostreams::direct_streambuf<T_Tr>::is_open always returns false if output iterator is not null dgregor 1192 [boostbook] problem when two files have the same name dgregor 1199 configure doesn't work with path containing whitespaces (MacOS X) dgregor 1218 Boostbook error when generating documentation for a member typedef with a description dgregor 1232 mapped_file_source::is_open() is broken under windows dgregor 556 Bundled graph properties dgregor 732 Johnson All-Pairs needs better "no path" information dgregor 736 Const correctness violation djowel 1170 Emit Warnings instead of # symbols in the syntax highlighter djowel 1171 Quickbook title output djowel 1172 non-utf djowel 1176 Space after inline code djowel 1206 Escaping from within code? djowel 1273 CR+LF newlines in position_iterator djowel 241 Miss " = ParserT()" djowel 314 spirit insert_key_actor.hpp djowel 664 crash in boost::spirit::parse dlwalker 613 boost/crc.hpp uses non-standard conforming syntax doug_gregor 1021 [Graph][reverse_graph] Problem using reverse_graph adapter with an adapted user defined graph doug_gregor 1076 compile error: disconnecting struct with operator()() doesn't work in VS2005 SP1 doug_gregor 375 LEDA graph adaptors do not handle hidden nodes properly doug_gregor 402 random_vertex/random_edge are unnecessarily inefficient doug_gregor 403 Document copy_component doug_gregor 447 reverse_graph and constness of property maps doug_gregor 708 Dijkstra no_init version should not require VertexListGraph doug_gregor 733 Numbered headers don't work with "preferred" syntax doug_gregor 735 Fruchterman-Reingold grid performance can be improved doug_gregor 738 Memory leaks with signal::connect? doug_gregor 829 Implicit graph not implement doug_gregor 852 Problem with Boost and GCC 4.1 ebf 965 [doc] boost::variant tutorial - final example uses v1_v2 should be seq1_seq2 ebf 993 Variant should use least common multiple of alignments_ rather than maximum fcacciola 1217 value_initialized leaves data uninitialized_ when using MSVC fcacciola 617 Numeric Conversion Documentation minor bug fcacciola 818 No zero-argument in_place() grafik 1023 inspect grafik 1041 Cygwin requires PATH setting. grafik 1062 Cygwin install stage fails with combination of patches grafik 1146 KAI Referenced in compiler status acknowledgements grafik 1233 Boost website still refers to CVS grafik 1244 Broken links to unit test examples grafik 546 boost.build needs fixes for HP/UX grafik 616 Boost Jam_ and non english directorys grafik 896 <native-wchar_t>off does not work when build with vc-8.0 grafik 959 linking fails when Boost is compiled with STLport 5.1.* on Linux (names mismatch) grafik 977 bjam crashes when compiled with gcc 4.2 grafik 986 Problem building Python modules on boost 1.34.0 hkaiser 1077 Spirit integer parser does not always detect integer overflow hkaiser 1079 boost-1.34.0 fails to compile. concept checks not satisfied. hubert_holin 162 Cannot compile octonion_test.cpp because of bug in sinc.hpp hubert_holin 647 octonion documentation bug igaztanaga 1080 boost::interprocess win32 global file mapping issue igaztanaga 1210 interprocess::barrier hangs during second use under linux (boost 1.33.1) igaztanaga 1231 interprocess_condition (emulated) hangs after notify_all(). jbandela 283 Compiler error for tokenizer on Solaris jbandela 501 token_iterator::at_end() result is inversed jbandela 665 bug in char_separator jmaurer 351 Diff in state of mersenne_twister gen between GCC3.41 & CW9 jmaurer 819 uniform_int<> with type's maximum availaible range error johnmaddock 1081 Empty string rejected as perl-style regex johnmaddock 1083 boost_regex 1.34.0 uses ICU library without linking to it johnmaddock 1130 GCC -wundef warnings johnmaddock 1148 boost_1_34_1 regex library compile failure on aix with xlv jsiek 416 Spelling of Edmonds-Karp-Algorithm jsiek 575 Calling subgraph::global_to_local on a root graph jsiek 636 strange compiling problem for transitive_closure jsiek 813 concept_check.hpp unused variable warning jsiek 815 remove_edge core dumps on self-circle jsiek 875 No iterator based constructor for adjacency_matrix jsiek 900 graphml reader namespace handling is broken kaalus 1184 property_tree assignment (operator) bug mistevens 688 ublas: bug in mapped_vector_of_mapped_vector nasonov 1220 lexical_cast requires RTTI nasonov 754 boost::any - typeid comparison across shared boundaries nesotto 1145 Small bugs in Boost.Range documentation nesotto 471 boost.range and "const char[]". nesotto 518 [Boost.Range]boost::const_begin calls non-qualified 'begin' nesotto 723 local_time_facet error in VS2005 Win2003 nesotto 730 The ptr_map iterator cannot be dereference to value type nesotto 807 boost::assignment documentation: mathematical "typo" pavol_droba 1152 rle_example fails pdimov 1106 shared_ptr<T> should not convert to shared_ptr<U> when T* doesn't convert to U* pdimov 1108 shared_ptr does not compile under g++ with -fno-rtti pdimov 997 error in boost::bind doc ramey 1036 assert failure in oserializer.hpp:418 ramey 1038 "<" and ">" should be excaped in xml_oarchive ramey 1086 Serialization of weak_ptr produces invalid XML ramey 1089 missing boost::serialization::make_nvp in pointer container library ramey 1121 xml_archive_exception is missing seperate header file_ and documentation mismatch ramey 1137 Virtual destructor is missing ramey 1141 Dangerious operator<< for wostream ramey 1142 boost/serialization/optional doesn't include necessary header ramey 1223 boost::serialization chokes on correcly formatted empty XML element ramey 1267 Assertion `new_cid == cid' failed in basic_iarchive ramey 757 xml serialization fails when using namespace ramey 878 error C2039: 'mbstate_t' : is not a member of 'std' ramey 961 boost::basic_binary_oprimitive not instantiated correctly ramey 968 xml_grammar - incorrect define char ramey 969 basic_binary_iprimitive::load_binary bug rogeeff 1030 execution_monitor.ipp #warning directive breaks compilation on MSVC 8.0 rogeeff 1032 typo in Boost.Test documentation rogeeff 1050 BOOST_CHECK_CLOSE_FRACTION documentation missing rogeeff 1060 no example sources in online docs for Boost::Test rogeeff 1212 Template fixtures rogeeff 607 Log level names wrong in documentation rogeeff 842 typo in auto_unit_test.hpp Revision 1.17 rogeeff 893 grammatical error in error message rogeeff 956 Doc error in test examples. rogeeff 962 Missing links in Test library documentation samuel_k 585 64 bit compile warning/error for boost::format samuel_krempp 1195 patch: boost/format/parsing.hpp does not compile if BOOST_NO_LOCALE_ISDIGIT is defined samuel_krempp 1196 Patch: when BOOST_NO_STD_LOCALE is not defined_ boost/format/internals.hpp fails to compile. samuel_krempp 704 format zero length string msvc-8 samuel_krempp 859 boost::format ignores a user defined locale shammah 284 pool::purge_memory() does not reset next_size shammah 290 perfomance: memory cleanup for pool takes too long shammah 386 boost::pool_allocator breaks with vector of vectors shammah 88 ct_gcd_lcm.hpp compilation error speedsnail 1138 Problems with TSS and static thread library t_schwinger 1100 Building boost.function_types fails cvs rev-1.1_ no chdir command in bash turkanis 525 problem with boost::iostreams when compiled with Visual C++ turkanis 699 Changing size of memory-mapped file on Windows turkanis 786 bug in iostreams/copy.hpp line 81 turkanis 791 iostreams::tee_filter is for output only turkanis 817 Performance problem in iostreams turkanis 822 Incorrect usage of bad_write()_ bad_seek() etc. turkanis 856 iostreams file_descriptor::write fails under Win32 urzuga 574 [boost::lambda] Compile error with libstdc++ debug mode urzuga 781 Lambda: (_1 + "y")(string("x")) Doesn't Compile vladimir_prus 1165 more quoting problems vladimir_prus 1228 bug in toolset gcc + HP/UX PA-RSIC vladimir_prus 469 multitoken broken vladimir_prus 689 [program_options] Endless loop with long default arguments witt 1046 Boost.Python quickstart instructions mention nonexistent target witt 834 Homepage regression links witt 957 The "Getting Started" page does not mention the stdlib option witt 973 zip_iterator has value_type == reference -- -- Marshall Marshall Clow Qualcomm, Inc. <mailto:mclow@qualcomm.com> The famous British scientist, Lord Kelvin, said: "When you measure what you are speaking about and express it in numbers, you know something about it, but when you cannot (or do not) measure it, when you cannot (or do not) express it in numbers, then your knowledge is of a meagre and unsatisfactory kind."

1 0

RFC - lifetime management
by Johan Torp 19 Sep '07

19 Sep '07

I'd love to get some feedback on a tiny utility I've been thinking about. I oftenly create small objects which I just want to keep alive as long as some other object exists. It is often RAII objects, but many other types of small classes fall into this category. A simple "user heap" could take ownership of such instances and delay deletion until itself is deleted. The basic interface of - let's call it heap - would look like this: template<class T> T& heap::put(T*); Example usage: boost::shared_ptr<SomeView> view; // Keep controller alive while view exits view->get_heap().put(new SomeController(*view)); For classes with loads of RAII object members, usage could look like this: class Foo { Foo() { keep_alive_.put(new RAIIBar(...)); keep_alive_.put(new RAIIWhatever(...)); } private: heap keep_alive_; }; Support should be added for putting shared_ptrs and auto_ptrs. I have a wide variety of naming suggestions and an extended interface for premature deletion but I'll save those for a later post. What do you think? Please give me your thoughts. Johan

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[optional] copy-initialization?
by shunsuke 19 Sep '07

19 Sep '07

Hi, Could you see the following tests: #include <boost/optional/optional.hpp> #include <cassert> int main() { { int const i = 10; boost::optional<int const &> o(i); assert(*o == 10); assert(&*o == &i); // ok } { int const i = 10; boost::optional<int const &> o = i; // copy-initialization assert(*o == 10); assert(&*o == &i); // failed on gcc3.4 and 4.1. } } For some reason, msvc passes this. Is this a bug, or copy-initialization is prohibited? Regards, -- Shunsuke Sogame

1 0

pass data between two layers (req. of patterns)
by Oliver.Kowalke＠qimonda.com 19 Sep '07

19 Sep '07

Hello, what would be a good practice to pass data between two layers. The upper layer invokes functionality of the lower layer and vice versa. One solution could be to implement the two layers as singletons which memebr functions implement the provided functionalities of the layer. But this would result in unreadable code. Do you have better suggestions (patterns)? Regards, Oliver

1 0

Re: [boost] Simple object factory: Checking signatures at runtime
by Steven Watanabe 19 Sep '07

19 Sep '07

AMDG "Marco Costalba" <mcostalba(a)gmail.com> wrote: > Sorry, but I don't understand, could you please post an example of how > to use the dispatcher so to see 'struct implicit_conversion' at work ? > > Thanks > Marco > The code I posted was not well thought out. The set of implicit conversions should probably be global. I would want to write make_implicit_conversion<double, int>(); make_implicit_conversion<int, double>(); Somewhere during initialization to say that int is convertible to double and double to int. Here's a more complete implementation (warning untested) I'm not showing how to register functions. That would involve creating a function object that casts from void* to the actual type. A real implementation would probably also use Boost.Function instead of function pointers. struct wrap_typeinfo { friend bool operator<(const wrap_typeinfo& lhs, const wrap_typeinfo& rhs) { return(lhs.key.before(rhs.key)); } const std::type_info* impl; }; struct implicit_conversion { friend bool operator<(const implicit_conversion& lhs, const implicit_conversion& rhs) { return(lhs.from.before(rhs.from)); } const std::type_info* to; void* (*convert)(void*); void (*destroy)(void*); }; static std::multi_map<wrap_typeinfo, implicit_conversion> all_conversions; void* ignore_convert(void* x) { return(x); } void ignore_destroy(void*) {} static implicit_conversion no_conversion = { 0, 0, &ignore_convert &ignore_destroy }; template<class To> void destroy(void* victim) { delete static_cast<To*>(victim); } template<class From, class To> void* convert(void* from) { return new To(*static_cast<From*>(from)); } template<class From, class To> void make_implicit_conversion() { wrap_typeinfo from = { &typeid(From) }; implicit_conversion result = { &typeid(To), &convert<From, To>, &destroy<From, To> }; all_conversions.insert(std::make_pair(from, result)); } template<class R> struct dispatcher0 { public: R operator()() const { return(f0()); } private: R (*f0)(); }; template<class F> F get_function(F f, const std::type_info**, const implicit_conversion**) { return(f); } template<class F, class T> F get_function(const std::map<wrap_typeinfo, T>& m, wrap_typeinfo* types, const implicit_conversion** out) { std::map<wrap_typeinfo, T>::iterator iter = m.find(*types); if(iter != m.end()) { ++types; *out++ = &no_conversion; return(get_function<F>(t.value, types, out)); } else { BOOST_FOR_EACH(const implicit_conversion& conversion, all_conversions.equal_range(*types)) { std::map<wrap_typeinfo, T>::iterator iter = m.find(*conversion.from); if(iter != m.end()) { ++types; *out++ = &conversion; return(get_function<F>(iter->second, types, out)); } } } return(0); } template<int N> struct cleanup_array : cleanup_array<N - 1> { cleanup_array(implicit_conversion* c, void** data) : cleanup_array<N - 1>(c) { x = c[N - 1].convert(data[N-1]); } ~cleanup_array() { cleanup_array<N - 1>::conversions[N-1].destroy(x); } void* x; }; template<> struct cleanup_array<0> { implicit_conversion* conversions; cleanup_array(implicit_conversion* c, void**) : conversions(c) {} }; template<int N, int N2> void* get(cleanup_array<N2>& from) { return(static_cast<cleanup_array<N+1>&>(from).x); } template<class R> struct dispatcher1 { public: template<class T0> R operator()(T0 t0) const { wrap_typeinfo types[1] = { &typeid(T0) }; implicit_conversion* conversions[1]; R (*f)(void*) = get_function<R(*)(void*)>(f1, types, conversions); void* elements[1] = { &t0 }; cleanup_array<1> data(conversions, elements); return(f(get<0>(data))); } private: std::map<wrap_typeinfo, R(*)(void*)> f1; }; template<class R> struct dispatcher2 { public: template<class T0, class T1> R operator()(T0 t0, T1 t1) const { wrap_typeinfo types[2] = { &typeid(T0), &typeid(T2) }; implicit_conversion* conversions[2]; R (*f)(void*) = get_function<R(*)(void*, void*)>(f2, types, conversions); void* elements[2] = { &t0, &t1 }; cleanup_array<2> data(conversions, elements); return(f(get<0>(data), get<1>(data))); } private: std::map<wrap_typeinfo, std::map<wrap_typeinfo, R(*)(void*, void*)> > f2; }; In Christ, Steven Watanabe

3 4

[fusion::vector] Forwarding packed arguments by reference
by Marco Costalba 19 Sep '07

19 Sep '07

In a object factory I'm converting to using boost::fusion I have a problem with passing argument by reference with a fusion vector. Let's explaing a bit... UI function to get an object from a name and a list of c'tor arguments is something like template<typename T1> /* one argument case */ static Base* object(detail::KeyRef nm, T1 a1) { typedef boost::fusion::vector<T1> values; values v(boost::fusion::vector_tie(a1)); return detail::Factory_p<Base>::instance(). template doObject<values>(nm, v); } template<typename T1, typename T2> /* two arguments case */ static Base* object(detail::KeyRef nm, T1 a1, T2 a2) { typedef boost::fusion::vector<T1, T2> values; values v(boost::fusion::vector_tie(a1, a2)); return detail::Factory_p<Base>::instance(). template doObject<values>(nm, v); } I want to easy the user from the burden to specifying template parameters, so use template parameters deduction. Because of function templates does not support template default arguments we are forced to use one of the above template for each number of arguments. Although we have many UI 'object()' templates I would like to use only one doObject<> template to avoid duplicating all the inner workings of the factory for each argument number. To do this input arguments are 'packed' in a fusion vector and unpacked just before to invoke the function object that actually creates the object: template<typename Values> Base* doObject(KeyRef nm, Values& v) const { --- cut-- const SignatureClass<Base, Values>* p = this->find<Values>(r); if (p) return (*p)(v); -- cut --- } Where the operator() in (overloaded) SignatureClass is defined as: template<typename Base, typename Values typename FnType> struct CreatorClass: public SignatureClass<Base, Values> { typedef typename FnType::result_type result_type; CreatorClass(const FnType& fn) : functor(fn) {} virtual result_type operator()(Values& v) const { return boost::fusion::invoke_function_object(functor, v); } FnType functor; }; Now the problem is that I'm not able to find a way to pass arguments by reference. As example, if I have a class: class Test { public: Test(int& cnt) { cnt++; } }; trying the following will fail: int objCnt = 6; Test* t = Factory::object(objCnt); cout << objCnt; // Is still 6 not 7!! This is expected since I pass by copy in object(detail::KeyRef nm, T1 a1) But it fails to update objCnt also if I explicitly set the template parameter type: Test* t = Factory::object<int&>(objCnt); How can I modify the code above to let pack arguments in a vector, handling always passing the packed vector by reference and finally call invoke_function_object() ? Thanks Marco

2 7

[filesystem] svn trunk broken
by Neal Becker 19 Sep '07

19 Sep '07

gcc-4.1.2 ./boost/filesystem/operations.hpp:1001: error: passing ‘const boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits>’ as ‘this’ argument of ‘boost::filesystem::basic_path<String, Traits>& boost::filesystem::basic_path<String, Traits>::remove_leaf() [with String = std::basic_string<char, std::char_traits<char>, std::allocator<char> >, Traits = boost::filesystem::path_traits]’ discards qualifiers

3 2

Re: [boost] [Boost-users] Review wizard's report for October 2007
by Ronald Garcia 18 Sep '07

18 Sep '07

On Sep 15, 2007, at 5:04 PM, Tobias Schwinger wrote: > Ronald Garcia wrote: >> >> >> Exception >> --------- >> :Author: Emil Dotchevski > > >> :Review Manager: Need Volunteer > > I'm, interested. As my time is limited right now, I'd need some for > proper pre-review inspection, though. > Thank you for volunteering. Could you give me a sense of how much time you would need before you could schedule a review? > >> Libraries under development >> =========================== >> >> Please let us know of any libraries you are currently >> developing that you intend to submit for review. > > The Boost X-files vol. 1, a collection of various utilities. > > http://tinyurl.com/ynjq2n > > It contains some function objects, such as a brute-force solution > to the > forwarding problem (to be factored out of Fusion) and generic > factories. > Further, and most notably, it includes three thread-safe Singleton > templates with an easy-to-use, "Boost-style" interface. > > It's almost in review-ready state, so given the number of entries > we can > probably put it in the queue right now. > Thanks for the information. I will add X-Files to the review queue. I would like to list the three libraries (factory, singleton, and forward) as separate reviews. I think that this would make sense for the purpose of reviewing. Let me know if there is some reason to review all three simultaneously. ron

2 2

[function] Merits of drop-in replacement
by Michael Marcin 18 Sep '07

18 Sep '07

I ran across http://www.codeproject.com/cpp/fastdelegate2.asp the other day. I searched the archives and didn't find any discussion about it on the list. It makes some good arguments and seems to be done pretty well, although it may have succumb to a bit of feature creep. Should those benchmarks be reran against the trunk version of Boost.Function? Thanks, Michael Marcin

4 5

[asio] wrapping handler with tuple in serialization example, client.cpp, connection.hpp
by Chris Fairles 18 Sep '07

18 Sep '07

In svn, the serialization example wraps a mem func ptr in a tuple to be tossed through various bind calls. In client.cpp, I found that using boost::protect around the bind call prevents the compile errors but I'm not sure why. connection_.async_read(stocks_, boost::protect(boost::bind(&client::handle_read, this, boost::asio::placeholders::error))); Any ideas as to why this works?

2 1