The linker problems in your second example can be fixed by using clang++ instead of clang (so that the standard C++ library gets linked). However I can reproduce the linker issue related to the branch function, and I currently don’t know what the problem might be. We’re preparing a new release at the moment, and I’ll try to get this fixed as soon as possible.
Cheers, Guido On 4 Nov 2013, at 9:29 am, Torsten Anders <torsten.and...@beds.ac.uk> wrote: > Dear Guido, > > Thanks a lot for your help! After removing /usr/local/gecode (ignored by > uninstall.sh -- likely too old), I could compile and run send-more-money.cpp > successfully with g++ at the command line as described in the tutorial. > Great! > > However, I would like to use Gecode with an IDE. I tried configuring Xcode as > described in your tutorial, but still ran into linking problems. I added the > geocode framework (not shown in the list, had to directly move to the path > /Library/Frameworks/gecode.framework. For Xcode, the Gecode tutorial > recommends "You may have to edit your project settings to choose Mac OS 10.6 > as the base SDK." With the current version Xcode 5.01 that is not possible > anymore. Anyway, regardless whether or not it is set to my system 10.8, I get > linker errors from clang. > > Undefined symbols for architecture x86_64: > "Gecode::branch(Gecode::Home, Gecode::IntVarArgs const&, > Gecode::IntVarBranch, Gecode::IntValBranch, bool (*)(Gecode::Space const&, > Gecode::IntVar, int), void (*)(Gecode::Space const&, Gecode::BrancherHandle > const&, unsigned int, Gecode::IntVar, int, int const&, > std::__1::basic_ostream<char, std::__1::char_traits<char> >&))", referenced > from: > SendMoreMoney::SendMoreMoney() in main.o > ld: symbol(s) not found for architecture x86_64 > > With Eclipse I have similar problems. > > To better understand the problem I tried command line calls for clang with > the same arguments as for g++ given in your tutorial, and got the more > detailed error message below. Not sure whether my flags are exactly the same > in Xcode as well, but the error looks at least similar. > > Any idea what I could be missing? Thanks a lot! > > Best wishes, > Torsten > > > The following silently results in an *.o file. > > $ clang -O3 -c send-more-money.cpp > > $ clang -framework gecode -o send-more-money send-more-money.cpp > Undefined symbols for architecture x86_64: > "std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> > >::str() const", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "std::ostream::operator<<(std::ostream& (*)(std::ostream&))", referenced from: > SendMoreMoney::print() const in send-more-money-cyceYe.o > "std::ostream::operator<<(int)", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "std::basic_string<char, std::char_traits<char>, std::allocator<char> > >::~basic_string()", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> > >::basic_ostringstream(std::_Ios_Openmode)", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> > >::~basic_ostringstream()", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "std::ios_base::Init::Init()", referenced from: > ___cxx_global_var_init in send-more-money-cyceYe.o > "std::ios_base::Init::~Init()", referenced from: > ___cxx_global_var_init in send-more-money-cyceYe.o > "std::basic_ios<char, std::char_traits<char> >::copyfmt(std::basic_ios<char, > std::char_traits<char> > const&)", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "std::exception::~exception()", referenced from: > Gecode::Exception::~Exception() in send-more-money-cyceYe.o > "std::cout", referenced from: > SendMoreMoney::print() const in send-more-money-cyceYe.o > "std::basic_ostream<char, std::char_traits<char> >& std::endl<char, > std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> > >&)", referenced from: > SendMoreMoney::print() const in send-more-money-cyceYe.o > "std::terminate()", referenced from: > ___clang_call_terminate in send-more-money-cyceYe.o > "std::basic_ostream<char, std::char_traits<char> >& > std::operator<<<std::char_traits<char> >(std::basic_ostream<char, > std::char_traits<char> >&, char const*)", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "std::basic_ostream<char, std::char_traits<char> >& > std::operator<<<std::char_traits<char> >(std::basic_ostream<char, > std::char_traits<char> >&, char)", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "std::basic_ostream<char, std::char_traits<char> >& std::operator<<<char, > std::char_traits<char>, std::allocator<char> >(std::basic_ostream<char, > std::char_traits<char> >&, std::basic_string<char, std::char_traits<char>, > std::allocator<char> > const&)", referenced from: > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::Int::print_view<char, std::char_traits<char>, > Gecode::Int::IntView>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::Int::IntView const&) in send-more-money-cyceYe.o > "vtable for __cxxabiv1::__class_type_info", referenced from: > typeinfo for Gecode::SharedHandle::Object in send-more-money-cyceYe.o > typeinfo for Gecode::ActorLink in send-more-money-cyceYe.o > typeinfo for Gecode::Choice in send-more-money-cyceYe.o > typeinfo for Gecode::Search::Stop in send-more-money-cyceYe.o > typeinfo for Gecode::Search::Cutoff in send-more-money-cyceYe.o > NOTE: a missing vtable usually means the first non-inline virtual member > function has no definition. > "vtable for __cxxabiv1::__si_class_type_info", referenced from: > typeinfo for Gecode::Rnd::IMP in send-more-money-cyceYe.o > typeinfo for Gecode::PosChoice in send-more-money-cyceYe.o > typeinfo for Gecode::DFA::DFAI in send-more-money-cyceYe.o > typeinfo for SendMoreMoney in send-more-money-cyceYe.o > typeinfo for Gecode::MemoryExhausted in send-more-money-cyceYe.o > NOTE: a missing vtable usually means the first non-inline virtual member > function has no definition. > "vtable for __cxxabiv1::__vmi_class_type_info", referenced from: > typeinfo for Gecode::Actor in send-more-money-cyceYe.o > NOTE: a missing vtable usually means the first non-inline virtual member > function has no definition. > "operator delete(void*)", referenced from: > Gecode::MemoryExhausted::~MemoryExhausted() in send-more-money-cyceYe.o > "___cxa_allocate_exception", referenced from: > _main in send-more-money-cyceYe.o > SendMoreMoney::SendMoreMoney() in send-more-money-cyceYe.o > SendMoreMoney::copy(bool) in send-more-money-cyceYe.o > Gecode::IntVarArgs::IntVarArgs(int) in send-more-money-cyceYe.o > > Gecode::VarArgArray<Gecode::IntVar>::VarArgArray(Gecode::VarArray<Gecode::IntVar> > const&) in send-more-money-cyceYe.o > "___cxa_begin_catch", referenced from: > ___clang_call_terminate in send-more-money-cyceYe.o > "___cxa_free_exception", referenced from: > _main in send-more-money-cyceYe.o > SendMoreMoney::SendMoreMoney() in send-more-money-cyceYe.o > SendMoreMoney::copy(bool) in send-more-money-cyceYe.o > Gecode::IntVarArgs::IntVarArgs(int) in send-more-money-cyceYe.o > > Gecode::VarArgArray<Gecode::IntVar>::VarArgArray(Gecode::VarArray<Gecode::IntVar> > const&) in send-more-money-cyceYe.o > "___cxa_pure_virtual", referenced from: > vtable for Gecode::SharedHandle::Object in send-more-money-cyceYe.o > vtable for Gecode::Actor in send-more-money-cyceYe.o > vtable for Gecode::Choice in send-more-money-cyceYe.o > vtable for Gecode::Search::Stop in send-more-money-cyceYe.o > vtable for Gecode::Search::Cutoff in send-more-money-cyceYe.o > "___cxa_throw", referenced from: > _main in send-more-money-cyceYe.o > SendMoreMoney::SendMoreMoney() in send-more-money-cyceYe.o > SendMoreMoney::copy(bool) in send-more-money-cyceYe.o > Gecode::IntVarArgs::IntVarArgs(int) in send-more-money-cyceYe.o > > Gecode::VarArgArray<Gecode::IntVar>::VarArgArray(Gecode::VarArray<Gecode::IntVar> > const&) in send-more-money-cyceYe.o > "___dynamic_cast", referenced from: > _main in send-more-money-cyceYe.o > "___gxx_personality_v0", referenced from: > _main in send-more-money-cyceYe.o > Gecode::SharedHandle::Object::~Object() in send-more-money-cyceYe.o > Gecode::Rnd::IMP::~IMP() in send-more-money-cyceYe.o > Gecode::DFA::DFAI::~DFAI() in send-more-money-cyceYe.o > Gecode::DFA::DFAI::~DFAI() in send-more-money-cyceYe.o > Gecode::PosChoice::~PosChoice() in send-more-money-cyceYe.o > std::basic_ostream<char, std::char_traits<char> >& > Gecode::operator<<<char, std::char_traits<char>, > Gecode::IntVar>(std::basic_ostream<char, std::char_traits<char> >&, > Gecode::VarArray<Gecode::IntVar> const&) in send-more-money-cyceYe.o > ... > ld: symbol(s) not found for architecture x86_64 > clang: error: linker command failed with exit code 1 (use -v to see > invocation) > Torstens-MacBook-Pro:tmp torsten$ > > > > > Undefined symbols for architecture x86_64: > "Gecode::branch(Gecode::Home, Gecode::IntVarArgs const&, > Gecode::IntVarBranch, Gecode::IntValBranch, bool (*)(Gecode::Space const&, > Gecode::IntVar, int), void (*)(Gecode::Space const&, Gecode::BrancherHandle > const&, unsigned int, Gecode::IntVar, int, int const&, > std::__1::basic_ostream<char, std::__1::char_traits<char> >&))", referenced > from: > SendMoreMoney::SendMoreMoney() in main.o > ld: symbol(s) not found for architecture x86_64 > clang: error: linker command failed with exit code 1 (use -v to see > invocation) > > > > > > On 2 Nov 2013, at 23:20, Guido Tack <t...@gecode.org> > wrote: > >> Hi Torsten, >> >> you seem to have an older version of Gecode installed in /usr/local (that's >> what the clang error messages point to). >> >> The 35 is the "library version", which is simply incremented with each >> release and doesn't follow the major.minor.patch scheme. >> >> Cheers, >> Guido >> >> On 3 Nov 2013, at 4:11 am, Torsten Anders <torsten.and...@beds.ac.uk> wrote: >> >>> On 2 Nov 2013, at 09:13, Torsten Anders <torsten.and...@beds.ac.uk> wrote: >>>> Dear Gecoders, >>>> >>>> I am trying to run some ready-made Gecode examples on a Mac without >>>> success. For example, with the first example from the tutorial >>>> (http://www.gecode.org/doc/4.2.0/MPG/send-more-money.cpp) in run into >>>> several errors, for example, >>>> >>>> 'INT_VAL_SPLIT_MIN' cannot be used as a function >>>> 'INT_VAR_SIZE_MIN' cannot be used as a function >>>> >>>> As these errors appear for several examples, it appears to me there is >>>> something fundamentally wrong. This might well be some installation error >>>> on my part. Nevertheless, help is appreciated -- I simply do not know >>>> where to start addressing such a problem. >>>> >>>> BTW: I just installed Gecode version 4.2 (binaries Gecode-4.2.0.dmg) on my >>>> Mac, after uninstalling some older version. I was surprised to find that >>>> /Library/Frameworks/gecode.framework/Versions/ contains a folder named >>>> "35" -- I would have expected it to be named "42", for version 4.2, but >>>> that could of course be simply a wrong guess on my part. >>>> >>>> Best wishes, >>>> Torsten >>> >>> >>> I tried to better isolate the problem. Both g++ (gcc) 4.2.1 and clang 5.0 >>> report problems with the example send-more-money.cpp >>> (http://www.gecode.org/doc/4.2.0/MPG/send-more-money.cpp), but the errors >>> differ. The details are below. >>> >>> What am I missing? >>> >>> Best wishes, >>> Torsten >>> >>> $ g++ -O3 -c send-more-money.cpp >>> send-more-money.cpp: In constructor ‘SendMoreMoney::SendMoreMoney()’: >>> send-more-money.cpp:55: error: ‘INT_VAR_SIZE_MIN’ cannot be used as a >>> function >>> send-more-money.cpp:55: error: ‘INT_VAL_MIN’ cannot be used as a function >>> >>> $ g++ --version >>> i686-apple-darwin11-llvm-g++-4.2 (GCC) 4.2.1 (Based on Apple Inc. build >>> 5658) (LLVM build 2336.11.00) >>> Copyright (C) 2007 Free Software Foundation, Inc. >>> >>> >>> $ >>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang >>> -O3 -c send-more-money.cpp >>> In file included from send-more-money.cpp:28: >>> In file included from /usr/local/include/gecode/int.hh:50: >>> In file included from /usr/local/include/gecode/iter.hh:97: >>> /usr/local/include/gecode/iter/ranges-scale.hpp:197:27: error: reference to >>> non-static member function must be called; did you mean to call it with no >>> arguments? >>> static_cast<UnsVal>(max - min + 1); >>> ^~~ >>> /usr/local/include/gecode/iter/ranges-scale.hpp:197:33: error: reference to >>> non-static member function must be called; did you mean to call it with no >>> arguments? >>> static_cast<UnsVal>(max - min + 1); >>> ^~~ >>> send-more-money.cpp:55:42: error: called object type 'int' is not a >>> function or >>> function pointer >>> branch(*this, l, INT_VAR_SIZE_MIN(), INT_VAL_MIN()); >>> ~~~~~~~~~~~~~~~~^ >>> 3 errors generated. >>> >>> $ >>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang >>> --version >>> Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn) >>> >>> >>>> -- >>>> Dr Torsten Anders >>>> Course Leader, Music Technology >>>> University of Bedfordshire >>>> Park Square, Room A315 >>>> http://www.torsten-anders.de >>> >>> _______________________________________________ >>> Gecode users mailing list >>> users@gecode.org >>> https://www.gecode.org/mailman/listinfo/gecode-users >> > > > _______________________________________________ > Gecode users mailing list > users@gecode.org > https://www.gecode.org/mailman/listinfo/gecode-users _______________________________________________ Gecode users mailing list users@gecode.org https://www.gecode.org/mailman/listinfo/gecode-users
