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Re: [Boost-Users] AmigaOS port of Boost 1.27.0
by Steven Solie 30 Mar '02

30 Mar '02

[My first attempt at replying seems to have failed... Try #2] > > #define BOOST_DISABLE_THREADS > > The BOOST_DISABLE_THREADS define shouldn't be set for a platform. If the > platform doesn't have threads, we just don't define BOOST_HAS_THREADS > for that platform. So you shouldn't need this line. If you do need it, > can you explain why? I set it because in the "User settable options" section it implies I should probably do that. AmigaOS doesn't support native multithreading but the GCC compiler might assume it does. I was just playing it safe. > > #define BOOST_NO_CWCHAR > > #define BOOST_NO_CWCTYPE > > #define BOOST_NO_SWPRINTF > > You only have to define BOOST_NO_CWCHAR. If it's defined, > BOOST_NO_CWCTYPE and BOOST_NO_SWPRINTF are both defined for you by > suffix.hpp. This should be in the documentation, but perhaps it's not. I was just going through the "Boost Macro Reference" and picking off the macros I thought applied. AmigaOS doesn't support wide characters (yet). I didn't see any docs saying they are related to each other. > > #define BOOST_NO_INTRINSIC_WCHAR_T > > This is usually a property of the compiler, not the platform, and so > it's the responsibility of the boost/config/compiler/xxx.hpp file to set > this. But I see that you're using GCC 2.95.3. I think that GCC 2.95.3 > does have an intrinsic wchar_t. What's going on here. The boost/integer_traits.hpp file spit out the error "No WCHAR_MIN and WCHAR_MAX present, please adjust integer_traits<> for your compiler." when I tried to compile the graph library regression test suite. I suspect the AmigaOS port of GCC 2.95.3 has turned off intrinsic wchar_t for some reason. I'll post a question to the Amiga GCC mailing list and see if anyone there knows anything about this. > > 3) libs/graph/test/isomorphism.cpp > > > > - inline bool verify_isomorphism(const Graph1& g1, const Graph2& g2, > > I'm not sure why you removed this function template. It's used in > test_isomorphism below. Could you elaborate? The function template is already defined in boost/graph/isomorphism.hpp. I suspect somebody has made a cut & paste error... > > + #include <cassert> > > Since <cassert> and <assert.h> are identical and some platforms lack > <cassert> we might want to use <assert.h> here even though it's a > deprecated feature. There are currently 25 files that use <cassert> and 3 files that use <assert.h>. Therefore, I think <cassert> is safe to use. You might want to hunt down those remaining <assert.h> includes and change them to <cassert> as well. NOTE: I used a simple grep to find this out so my numbers may not be 100% correct. Cheers, --Steven

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linking with boost.threads on solaris 8 with gcc 3.0.3
by Dale Peakall 30 Mar '02

30 Mar '02

gcc version: 3.0.3 - thread model: posix ld version: GNU ld 2.11.2 (with BFD 2.11.2) boost: 1.27.0 I've applied the unclosed extern "C" fix to once.cpp, removed the unsupported -pthread option from gcc-tools.jam, and built the thread library using jam with no errors. Has anyone compiled anything using this environment that uses boost.threads? A v.simple (completely pointless) test fails for me: #include <exception> #include <iostream> #include <boost/thread/mutex.hpp> int main(int argc, char* argv[]) { try { boost::mutex m; boost::mutex::scoped_lock l(m); } catch(std::exception const& e) { std::cerr << "error: " << e.what() << "\n"; return 1; } } g++ -c -g -I/home/peakalld/boost_1_27_0 main.cpp g++ -o thread_test -L/home/peakalld/boost_1_27_0/libs/thread/build/bin/libboost_thr ead/gcc/debug/runtime-link-dynamic -lboost_thread -lpthread -lposix4 main.o main.o: In function `main': /home/peakalld/development/thread_test/main.cpp:10: undefined reference to `boost::mutex::mutex()' /home/peakalld/development/thread_test/main.cpp:11: undefined reference to `boost::mutex::~mutex()' /home/peakalld/development/thread_test/main.cpp:11: undefined reference to `boost::mutex::~mutex()' main.o: In function `boost::lock_error::~lock_error()': /home/peakalld/boost_1_27_0/boost/thread/detail/lock.hpp(.gnu.linkonce.t._ZN 5boost6detail6thread11scoped_lockINS_5mutexEE4lockEv+0x24): undefined reference to `boost::lock_error::lock_error()' /home/peakalld/boost_1_27_0/boost/thread/detail/lock.hpp(.gnu.linkonce.t._ZN 5boost6detail6thread11scoped_lockINS_5mutexEE6unlockEv+0x24): undefined reference to `boost::lock_error::lock_error()' /home/peakalld/boost_1_27_0/boost/thread/detail/lock.hpp(.gnu.linkonce.t._ZN 5boost6detail6thread8lock_opsINS_5mutexEE4lockERS3_+0x8): undefined reference to `boost::mutex::do_lock()' /home/peakalld/boost_1_27_0/boost/thread/detail/lock.hpp(.gnu.linkonce.t._ZN 5boost6detail6thread8lock_opsINS_5mutexEE6unlockERS3_+0x8): undefined reference to `boost::mutex::do_unlock()' collect2: ld returned 1 exit status make: *** [all] Error 1 Any thoughts appreciated. - Dale.

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g++ error while compiling boost program on Dec Alpha (fwd)
by Jun Aishima 29 Mar '02

29 Mar '02

I got the following error while compiling a program using the boost graph library on a Dec Alpha, using g++ 3.0.3: mips-tfile, /tmp/ccC6RDPL.s:1457 String too big (4138 bytes) line: #.stabs "__comp_ctor::9664:_ZN5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_propertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EEC1ERKSK_RKSM_;2A.;__base_ctor::9665=#9657,24,9660,9348,24;:_ZN5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_propertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EEC2ERKSK_;2A.;__comp_ctor::9665:_ZN5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_propertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EEC1ERKSK_;2A.;__base_ctor::9666=#9657,24,9660,8435,24;:_ZN5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_proper! tyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EEC2ERKSM_;2A.;__comp_ctor::9666:_ZN5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_propertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EEC1ERKSM_;2A.;first::9667=#9657,9346,9660,24;:_ZN5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_propertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EE5firstEv;2A.9668=#9657,9348,9669=*9657,24;:_ZNK5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_propertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EE5firstEv;2B.;second::9670=#9657,8433,9660,24;:_ZN5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iterat! orINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_pr! opertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EE6secondEv;2A.9671=#9657,8435,9669,24;:_ZNK5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_propertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EE6secondEv;2B.;swap::9672=#9657,24,9660,9673=&9674=xscompressed_pair<std::__normal_iterator<boost::detail::sei_<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >, boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >&, boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >*>, boost::property<boost::edge_weight_t, double, boost::no_property> >*, std::vector<boost::detail::sei_<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >, boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >&, boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >*>, boost::property<boost::edge_weight_t, double, boost::no_property> >, std::allocator<boost::detail::sei_<long unsigned int, std::_List_iterator<boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >, boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >&, boost::list_edge<long unsigned int, boost::property<boost::edge_weight_t, double, boost::no_property> >*>, boost::property<boost::edge_weight_t, double, boost::no_property> > > > >,boost::detail::oeip_<long unsigned int> >:,24;:_ZN5boost7details19compressed_pair_impISt17__normal_iteratorIPNS_6detail4sei_ImSt14_List_iteratorINS_9list_edgeImNS_8propertyINS_13edge_weight_tEdNS_11no_propertyEEEEERSB_PSB_ESA_EESt6vectorISF_SaISF_EEENS3_5oeip_ImEELi0EE4swapERNS_15compressed_pairISK_SM_EE;2A.;;",128,0,71,0 gmake: *** [alpha/debug.o/findbackbone.o] Error 1 Any idea what could be causing this or how this can be fixed? Thanks, Jun Aishima jaishima(a)lbl.gov

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Compiling CRC
by David Brownell 29 Mar '02

29 Mar '02

I have the following code that doesn't compile using VC 7.0. I am getting many errors in crc.hpp. Am I missing something simple here? I have just glanced at the manual, so please be gentle with the RTFM responses :) TIA, David Brownell #include<iostream> #include "boost\crc.hpp" int main(void) { const unsigned char DATA[] = { 1, 2, 3, 4, 5 }; boost::crc_32_type crc; crc.reset(); crc.process_bytes(DATA, sizeof(DATA) / sizeof(*DATA)); std::cout << crc.checksum() << std::endl; return(true); }

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RE: [Boost-Users] boost.bind usage
by Swatosh, Joe R NWP 29 Mar '02

29 Mar '02

> -----Original Message----- > From: markus_schoepflin > > Is it just me or is it my compiler (MSVC6SP5)? The following code > gives me an error. Whats wrong? > > #include <boost/bind.hpp> > #include <functional> > > using boost::bind; > > void main() > { > bind(std::greater<int>, _1, _2)(1, 2); > } > > main.cpp(8) : error C2275: 'std::greater<int>' : illegal use of this > type as an expression > > TIA, Markus I'm no expert, but your compiler is telling you exactly whats wrong: you need to create an object to pass to bind. bind(std::greater<int>(), _1, _2)(1, 2); ^^ Joe Swatosh | mailto:Joe.R.Swatosh@usace.army.mil nLink contract employee | mailto:jswatosh@n-link.net US Army Corps of Engineers | Northwestern Division, Portland District CENWP-HDC-P | Hydroelectric Design Center 220 NW 8th Ave | v:(503) 808-4032 Portland, OR 97209 | f:(503) 808-4029 [Non-text portions of this message have been removed]

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bug in rational.hpp
by whastingsnj 28 Mar '02

28 Mar '02

operator /= can produce an unnormalized result in Version 1.27.0 For example, boost::rational<long> x(1,1); boost::rational<long> y(-1,1); x /= y; //at this point x.den = -1 !!!

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boost 1.27.0, type_traits, and CVS
by David B. Held 27 Mar '02

27 Mar '02

I just downloaded the latest version on the web site. I've never really used CVS before, but I tried to grab what appeared to be all the relevant files for type_traits. Now, when I try to use boost::function, I get all this: /usr/local/include/boost/function/function_base.hpp:151: parse error before `>' token /usr/local/include/boost/function/function_base.hpp:153: template argument 1 is invalid /usr/local/include/boost/function/function_base.hpp:153: `type' is not a class or namespace /usr/local/include/boost/function/function_base.hpp:153: ISO C++ forbids declaration of `type' with no type Which points to a line that contains is_stateless<>, which I assume is part of type_traits. So, could someone, in simple terms that a 5-year-old could understand, tell me how to get the latest version of type_traits from CVS? Do I actually need to download CVS software, or can I do it all through the web interface? Thanks. Dave [Non-text portions of this message have been removed]

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location of jam executable
by obhiee 27 Mar '02

27 Mar '02

hi, i d/l'ed the 1_27_0 and have successfully built the jam executable. i went through the documentation for build but am still unclear as to the location from where jam should be run. do i just copy jam into the top level directory where the files were extracted to and run it from there after setting BOOST_ROOT? some posts in this list conveyed the impression that it should be run from within the source library for each library. i find that confusing. isn't it the intent(?) of jam to be able to build the code wherever it may be located provided that the appropriate entry has been made into BOOST_BUILD_PATH/BOOST_ROOT? i apologize since this post is probably somewhat off-topic. sincerely, abhishek.

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Iterator Adaptor?
by David Brownell 27 Mar '02

27 Mar '02

I have a hunch that this has been asked before, but I can't seem to find the answer. I have a struct similar to: struct MyStruct { int i; char c; }; And a functor similar to: struct MyFunctor { void operator()(int i) { //Do something with i } }; Given a container of MyStruct objects, how can I use iterator_adaptor to use MyStruct::i with MyFunctor? Something like: std::vector<MyStruct> v; std::for_each(v.begin(), v.end(), MyFunctor()); I have overridden the dereference method in default_iterator_policies to return the integer, but am at a bit of a loss where to go from here. Am I on the right track? TIA for your help! David Brownell

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Re: linking with boost.threads on solaris 8 with gcc 3.0.3
by Dale Peakall 26 Mar '02

26 Mar '02

> Unfortunately, jam fails to build the test app too. > > The errors reported when trying to link 'test_thread' and are from > thread.o: > undefined reference to nanosleep > undefined reference to sched_yield > > > Hopefully others will have more information for you. > > Lets hope. Adding -lrt -lpthread -lposix4 to the LINKFLAGS for <threading>multi makes an app that links and runs passing the tests. - Dale.

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