RE: [Boost-Users] Getting the hang of Boost::Bind

From: Tom Matelich (tmatelich_at_[hidden])
Date: 2002-08-09 17:26:02

> -----Original Message-----
> From: Duane Murphy [mailto:duanemurphy_at_[hidden]]
> Sent: Friday, August 09, 2002 3:23 PM
> To: Boost Users
> Subject: Re: [Boost-Users] Getting the hang of Boost::Bind
> 
> 
> --- At Fri, 9 Aug 2002 15:08:06 -0700, Tom Matelich wrote:
> 
> >I have a vector of
> >
> >class Landmark
> >{
> >public:
> >	std::string const& getName() const;
> >...
> >};
> >
> >I want to do a find_if for a name that I have.
> >
> >something like
> >std::find_if(begin, end, boost::bind(std::equal<std::string>(???,
> >name_to_find)));
> >
> >What do I put for the ??? ?
> 
> Nothing. Your done. :-) bind takes a pointer to a function 
> (among other
> things) as the first parameter. It then calls that function with the
> parameters you specify. You use _1, etc for parameters that 
> are input to
> bind. In your case:
> 
> std::find_if(begin, end, boost::bind(std::equal<std::string>,
> name_to_find, _1)));
> 

But I have to compare name_to_find to the result of _1.getName() don't I?

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