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Re: int8(0) == int16(0) [ was Re: int8(0)==0 ? ]


From: David Bateman
Subject: Re: int8(0) == int16(0) [ was Re: int8(0)==0 ? ]
Date: Sun, 5 Sep 2004 19:19:05 +0200
User-agent: Mutt/1.4.1i

According to John W. Eaton <address@hidden> (on 09/04/04):
> On  3-Sep-2004, Josep Monés i Teixidor <address@hidden> wrote:
> 
> | I've tested now int8(0) == int16(0) and isequal(int8(0),int16(0)) and
> | these don't work. From documentation, I believe that MATLAB answers 1 to
> | both.
> | 
> | 
> | octave:164> int8(0)==int16(0)
> | error: binary operator `==' not implemented for `int8 scalar' by `int16
> | scalar' operations
> 
> | octave:164> isequal(int8(0),int16(0))
> | error: can't perform indexing operations for int8 scalar type
> 
> I've just checked in a set of changes that makes these (and many other
> similar mixed-type) operations work as you would expect.

I noticed the comment about 64-bit types in the code, but what happens
with an example like 

intmax("uint64") - uint64(1) == intmax("uint64")

casting to double before comparing will ensure that the above statement
returns true when it should return false...

D.

-- 
David Bateman                                address@hidden
Motorola CRM                                 +33 1 69 35 48 04 (Ph) 
Parc Les Algorithmes, Commune de St Aubin    +33 1 69 35 77 01 (Fax) 
91193 Gif-Sur-Yvette FRANCE

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