Re: [Boost-users] [Bind] arity of arbitrary object

Peter Dimov wrote:

Sohail Somani wrote:

...

Hi, I've attached up something that seems to kind of maybe work in g++. Don't have access to any other compiler at the moment, so I can't tell you if it will work or if it is even conforming to standard.

No, this doesn't quite work. It says that bind( f, _5 ) has arity 1, but the correct answer is 5. Similarly, it says that bind( f, 1, 2 ) has arity 2, while the correct answer is 0. You need something like (pseudocode)

arity( _bi::bind_t ) :- max( arity( e ) ) for each e in L arity( X ) :- is_placeholder<X>::value

This could be much easier with a bind that uses a fusion tuple as L. :-)

Phoenix :) Regards, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net