Hi: Any help with either creating a hash function, or storing pointers accepted. Cheers Sean. -----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Vaclav Haisman Sent: 01 November 2008 09:54 To: boost-users@lists.boost.org Subject: Re: [Boost-users] using boost::tokenizer within boost::bimap Sean Farrow wrote:

Hi: I'd like to use boost::tokenizer in boost::bimap. I currently have: boost::bimaps::bimap<boost::bimaps::unordered_set_of<boost::tokenizer< bo ost::char_separator<char>>>, std::string> CodeList;

I'm getting the following errors:

1>------ Build started: Project: VDux, Configuration: Release Win32 ------

1>Compiling...

1>VDux.cpp

1>c:\program files\boost\boost/functional/hash/extensions.hpp(72) : error C2665: 'boost::hash_value' : none of the 16 overloads could convert all the argument types

1> c:\program files\boost\boost/functional/hash/hash.hpp(33): could be 'size_t boost::hash_value(bool)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(34): or 1> 'size_t boost::hash_value(char)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(35): or 1> 'size_t boost::hash_value(unsigned char)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(36): or 1> 'size_t boost::hash_value(signed char)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(37): or 1> 'size_t boost::hash_value(short)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(38): or 1> 'size_t boost::hash_value(unsigned short)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(39): or 1> 'size_t boost::hash_value(int)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(40): or 1> 'size_t boost::hash_value(unsigned int)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(41): or 1> 'size_t boost::hash_value(long)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(42): or 1> 'size_t boost::hash_value(unsigned long)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(45): or 1> 'size_t boost::hash_value(wchar_t)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(49): or 1> 'size_t boost::hash_value(boost::long_long_type)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(50): or 1> 'size_t boost::hash_value(boost::ulong_long_type)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(67): or 1> 'size_t boost::hash_value(float)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(68): or 1> 'size_t boost::hash_value(double)'

1> c:\program files\boost\boost/functional/hash/hash.hpp(69): or 1> 'size_t boost::hash_value(long double)'

1> while trying to match the argument list '(const boost::tokenizer<TokenizerFunc>)'

1> with

1> [

1> TokenizerFunc=boost::char_separator<char>

1> ]

1> c:\program files\boost\boost/functional/hash/extensions.hpp(71) : while compiling class template member function 'size_t boost::hash<T>::operator ()(const T &) const'

1> with

1> [

1> T=boost::tokenizer<boost::char_separator<char>>

1> ]

1> c:\program files\boost\boost/concept_check.hpp(334) : see reference to class template instantiation 'boost::hash<T>' being compiled

1> with

1> [

1> T=boost::tokenizer<boost::char_separator<char>>

1> ]

1> c:\program files\boost\boost/concept_check.hpp(317) : see reference to class template instantiation 'boost::UnaryFunction<Func,Return,Arg>' being compiled

1> with

1> [

1> Func=boost::hash<boost::tokenizer<boost::char_separator<char>>>,

1> Return=size_t,

1> Arg=boost::tokenizer<boost::char_separator<char>>

1> ]

1> c:\program files\boost\boost/concept/detail/has_constraints.hpp(40) : see reference to class template instantiation 'boost::UnaryFunctionConcept<Func,Return,Arg>' being compiled

1> with

1> [

1> Func=boost::hash<boost::tokenizer<boost::char_separator<char>>>,

1> Return=size_t,

1> Arg=boost::tokenizer<boost::char_separator<char>>

1> ]

1> c:\program files\boost\boost/concept/detail/msvc.hpp(52) : see reference to class template instantiation 'boost::concept::not_satisfied<Model>' being compiled

1> with

1> [

1> Model=boost::UnaryFunctionConcept<boost::hash<boost::tokenizer<boost:: ch ar_separator<char>>>,size_t,boost::tokenizer<boost::char_separator<cha r>

1> ]

1> c:\program files\boost\boost/bimap/unordered_set_of.hpp(142) : see reference to class template instantiation 'boost::concept::require<Model>' being compiled

1> with

1> [

1> Model=boost::UnaryFunctionConcept<boost::hash<boost::tokenizer<boost:: ch ar_separator<char>>>,size_t,boost::tokenizer<boost::char_separator<cha r>

1> ]

1> c:\program files\boost\boost/bimap/detail/manage_bimap_key.hpp(69) : see reference to class template instantiation 'boost::bimaps::unordered_set_of<KeyType>::lazy_concept_checked' being

compiled

1> with

1> [

1> KeyType=boost::tokenizer<boost::char_separator<char>>

1> ]

1> c:\program files\boost\boost/bimap/detail/bimap_core.hpp(90) : see reference to class template instantiation 'boost::bimaps::detail::manage_bimap_key<Type>' being compiled

1> with

1> [

1> Type=boost::bimaps::unordered_set_of<boost::tokenizer<boost::char_sepa ra tor<char>>>

1> ]

1> c:\program files\boost\boost/bimap/bimap.hpp(137) : see reference 1> to class template instantiation 'boost::bimaps::detail::bimap_core<LeftSetType,RightSetType,AP1,AP2,AP 3> ' being compiled

1> with

1> [

1> LeftSetType=boost::bimaps::unordered_set_of<boost::tokenizer<boost::ch ar _separator<char>>>,

1> RightSetType=std::string,

1> AP1=boost::mpl::na,

1> AP2=boost::mpl::na,

1> AP3=boost::mpl::na

1> ]

1> .\VDux.cpp(51) : see reference to class template instantiation 'boost::bimaps::bimap<KeyTypeA,KeyTypeB>' being compiled

1> with

1> [

1> KeyTypeA=boost::bimaps::unordered_set_of<boost::tokenizer<boost::char_ se parator<char>>>, You are trying to use unordered_set with key (tokenizer<>) for which there is no hashing functor defined. You will have to supply some. And then even if you manage to create one, is there any meaningful operator==? You should probably just store pointers to tokenize<> in the bimap instead.

1> KeyTypeB=std::string

1> ]

1>Build log was saved at "file://f:\hd\work\Freedom Of Speech\V-Ware\V-Dux\Dll\Release\BuildLog.htm"

1>VDux - 1 error(s), 0 warning(s)

========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

using visual studio 2008.

Anyone give me any pointers.

Cheers

Sean.

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