Re: [Caml-list] Changes on equality between 3.06 and 3.08.3

[Damien Doligez <damien.doligez@inria.fr>]

On Apr 28, 2005, at 12:02, Olivier Michel wrote:

> I just noticed the following change in Ocaml between release 3.06 and 
> 3.08.3, as far
> as equality on records is concerned :
>
> # type toto = { b : int -> int; };;
> type toto = { b : int -> int; }
> # let a = { b = (fun x -> x) } ;;
> val a : toto = {b = <fun>}
> # a = a;;
> Exception: Invalid_argument "equal: functional value".
>
>
> Is this supposed to be a bug, or a feature ? Will future releases of 
> Ocaml follow
> the new way of handling equality between records or the old one ?

New feature.  Carefully thought out.  Well documented.  Ultimately 
caused
by a strange wart of the IEEE floating-point standards.

You should use the "compare" function if you want the old behaviour.

-- Damien