"Igor R" <boost.lists@gmail.com> wrote in message news:AANLkTimdhsHw+Ow8VAfrNZQe=5g79R9KudWiokwN8a54@mail.gmail.com...
I just have to add:
typedef bool result_type;
to my functor, or call boost::bind<bool>.
Or just define a simple function instead of the functor (which is stateless anyway).
Thanks for the suggestion. However, this: bool OverrideMatches( const TItemOverride &OverrideSource, const RecNo_t ChildItemRecNo, <-- note: these are const const RecNo_t LinkItemRecNo ) { return OverrideSource.ChildAssyItemRecNo == ChildItemRecNo && OverrideSource.LinkItemRecNo == LinkItemRecNo; } const RecNo_t ChildItemRecNo = 123; <-- note: these are const too const RecNo_t LinkItemRecNo = 456; std::find_if( FOverridesContainer.begin(), FOverridesContainer.end(), boost::bind(OverrideMatches, _1, ChildItemRecNo, LinkItemRecNo) ); results in an error: [C++ Error] bind_cc.hpp(50, 4): E2034 Cannot convert '_bi::bind_t<bool,bool (*)(const TItemOverride &,const unsigned int,const unsigned int),_bi::list3<arg<1> (*)(),_bi::value<const unsigned int>,_bi::value<const unsigned int> > >' to '_bi::bind_t<bool,bool (*)(const TItemOverride &,unsigned int,unsigned int),_bi::list3<arg<1> (*)(),_bi::value<const unsigned int>,_bi::value<const unsigned int> > >' This is odd, because the arguments are const and the parameters in the function are declared as const. It seems to me that it should compile, but doesn't. Why not? (compiler bug?) Now, if I remove the 'const' from the integer parameter declarations, or if I make them const references, it compiles fine. - Dennis