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Date: Tue, 30 Jan 2007 15:41:09 -0500
From: Fernando Alegre <fernando@cc.gatech.edu>
To: Gerd Stolpmann <info@gerd-stolpmann.de>
Cc: Tom <tom.primozic@gmail.com>, caml-list@yquem.inria.fr,
	Jacques Carette <carette@mcmaster.ca>,
	Chris King <colanderman@gmail.com>
Subject: Re: [Caml-list] Equality of functional values
Message-ID: <20070130204109.GB15659@gaia.cc.gatech.edu>
References: <OF17E5D6F6.FEDBC158-ON85257273.004F9D16-85257273.005465ED@db.com> <45BF691B.8090506@mcmaster.ca> <875c7e070701300923r362b1032sac4125fd2879f8ae@mail.gmail.com> <c1490a380701301218y1a92ec8ei5b4efbc714664b03@mail.gmail.com> <1170189001.21265.9.camel@localhost.localdomain>
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X-Spam: no; 0.00; 0100,:01 gerd:01 stolpmann:01 pervasives:01 equality:01 equality:01 wrote:01 caml-list:01 functional:02 let:03 structural:04 tue:06 fernando:06 fernando:06 alegre:08 


Maybe what should be in the wait list is the following:

Keep == as it is now

Revert = to its previous behavior: first check physical then structural

Add a new operator =. for floating-point-aware equality that works on
everything the way = works now.

Would not this make everyone happy?

Fernando

On Tue, Jan 30, 2007 at 09:30:01PM +0100, Gerd Stolpmann wrote:

> But
> 
> let equal x y = 
>   Pervasives.compare x y = 0
> 
> works!