[Date Prev][Date Next][Thread Prev][Thread Next]
- Subject: Re: Translating from a VERY "loose" language
- From: Rici Lake <lua@...>
- Date: Mon, 11 Jun 2007 15:57:00 -0500
On 11-Jun-07, at 3:45 PM, Steve Heller wrote:
By the way, do you know why == and ~= behave
differently from <=, etc. in this regard? It seems
inconsistent, and makes for more work when you have
type issues to deal with.
It would be really awkward if ==/~= threw errors.
if a == b then ...
would have to be rewritten safely as
if type(a) == type(b) and a == b then ...
Consider common cases such as b is nil, or b is a sentinel, etc.
In any event, it's clear that two objects of different types are
unequal, but have no ordering relationship. So comparison and
ordering operators are really different.