Re: [boost] [bind][tr1] patch for more compliant placeholders

From: Peter Dimov (pdimov_at_[hidden])
Date: 2007-04-28 13:18:16

Daniel Walker wrote:

> So, you mean that Bind is definitely going to overload the relational
> operators.

Bind already overloads the relational operators:

http://www.boost.org/libs/bind/bind.html#operators

in more limited contexts. It is trivial to extend this overloading to work 
on expressions that involve no bind calls such as _1 == 5, _1 > _2 or !_4 - 
provided that the placeholders aren't inline functions, of course. :-)

> Is that also under consideration by the standard committee?

Not yet.

> Why not bring all the operators into bind and remove (or at
> least largely remove) the need for a separate lambda library to
> support lambda expressions?

The operators that Bind currently supports do not require return type 
deduction since their return type is assumed to be bool.