Re: [boost] [bind] Error C4430 in bind.hpp

Subject: Re: [boost] [bind] Error C4430 in bind.hpp
From: Darren Garvey (darren.garvey_at_[hidden])
Date: 2012-03-15 12:06:48

On 15 March 2012 11:59, Robert Dailey <rcdailey_at_[hidden]> wrote:

> On Thu, Mar 15, 2012 at 9:25 AM, Lars Viklund <zao_at_[hidden]> wrote:
>
> > On Thu, Mar 15, 2012 at 08:25:54AM -0500, Robert Dailey wrote:
> > > >> For some reason when I include <boost/bind.hpp> I get the following
> > > >> errors:
> > > >>
> > > >>
> >
> 1>c:\code\work\cmake-mds\build-vc9\third_party\boost\1.48.0\include\boost\bind\bind.hpp(1200)
> > > >> : error C4430: missing type specifier - int assumed. Note: C++ does
> > not
> > > >> support default-int
>
> > [snip]
> >
> > > >>
> > > >> They point to this code in bind.hpp:
> > > >>
> > > >> BOOST_BIND_OPERATOR( ==, equal )
> >
> > [snip]
>
> Thanks for the help. I generated a preprocessed file for this translation
> unit (the one including bind.hpp) and I see the following generated code:
>
> struct equal { template<class V, class > bool operator()(V const & v,
>  const & w) const { return v == w; } }; template<class R, class F, class L,
> class A2> bind_t< bool, equal, list2< bind_t<R, F, L>, typename
> add_value<A2>::type > > operator == (bind_t<R, F, L> const & f, A2 a2) {
> typedef typename add_value<A2>::type B2; typedef list2< bind_t<R, F, L>,
> B2> list_type; return bind_t<bool, equal, list_type> ( equal(),
> list_type(f, a2) ); }
>

Seems like the upper-case 'W' character is not being expanded properly. I'm
assuming you don't have anything crazy in your code base that defines 'W'
to be nothing?

Cheers,

Darren