Re: [Boost-users] [Bind] How to create a functor which returns oneof its arguments?

Subject: Re: [Boost-users] [Bind] How to create a functor which returns oneof its arguments?
From: Vadim Guchenko (nomail_at_[hidden])
Date: 2009-12-09 05:20:18

Hello, Roman!
You wrote  on Tue, 8 Dec 2009 16:26:58 +0100:

 >> Is there a simple way to create a functor that returns one of its
 >> arguments _1, _2, ...?
 RP> In Boost.Lambda _2 is a functor that returns its second argument and
 RP> constant(true) is a functor that always returns true. The same works
 RP> with Boost.Phoenix.

Thanks! Boost.Lambda allows to write more compact code than if functors from 
the <functional> header are used.

--
Best regards, Vadim Guchenko [yhw at relost dot net].