Re: [Boost-users] warning C4180 in VS 2005 for bind.hpp

From: Ovanes Markarian (om_boost_at_[hidden])
Date: 2007-08-29 09:31:51

Hello Adam!

I don't think the library is guilty. I think you pass some wrong parameters.
Can you please provide a sample code which produces such a warning?

With kind regards,
Ovanes

On 8/29/07, Adam Badura < abadura_at_[hidden]> wrote:
>
>     I have a large project at work. We use Visual Studio 2005 with SP 1
> and
> Boost 1.34.0.
>     When we use boost::bind in algorithms on collections we very often get
> following warning (at level 3):
>
>
>
> J:\ThirdParty\boost_1_34_0\boost/bind.hpp(1575) : warning C4180: qualifier
> applied to function type has no meaning; ignored
>
>
>
> the detailed message is following (just an example extract from
> compilation
> log, sadly I was unable to produce a simple stand-alone example - but if
> it
> is required then I will give some more work into finding one):
>
>
>
> J:\ThirdParty\boost_1_34_0\boost/bind.hpp(1575) : warning C4180: qualifier
> applied to function type has no meaning; ignored
>         J:\ThirdParty\boost_1_34_0\boost/bind.hpp(1609) : see reference to
>
> class template instantiation 'boost::_bi::add_cref<Pm,I>' being compiled
>         with
>         [
>             Pm=boost::shared_ptr<nle::views::ScrollEventListener> ,
>             I=1
>         ]
>         j:\sources\Common/Helpers/Observable.h(128) : see reference to
> class
> template instantiation 'boost::_bi::dm_result<Pm,A1>' being compiled
>         with
>         [
>             Pm=boost::shared_ptr<nle::views::ScrollEventListener>
> (__thiscall boost::weak_ptr<nle::views::ScrollEventListener>::* )(void),
>             A1=boost::arg<1>
>         ]
>         j:\sources\Common/Helpers/Observable.h(120) : while compiling
> class
> template member function 'void
> common::helpers::Observable<T>::registerListener(const boost::weak_ptr<T>
> &)
> const'
>         with
>         [
>             T=nle::views::ScrollEventListener
>         ]
>         j:\sources\NLE/Views/ScrollInfo.h(65) : see reference to class
> template instantiation 'common::helpers::Observable<T>' being compiled
>         with
>         [
>             T=nle::views::ScrollEventListener
>         ]
>
>
>
>     One of my colleagues found a "solution" to this problem. If the
> modifier
> "const" is removed in one of typedef's the no warning are generated.
> However
> we would like a better solution since modifying the library doesn't seem a
> good one.
>     What to do?
>
>     Adam Badura
>
>
>
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>