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Topic: Temporary output when assigning into slices?
Replies: 10   Last Post: Jan 27, 2013 3:53 AM

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Matt J

Posts: 4,996
Registered: 11/28/09
Re: Temporary output when assigning into slices?
Posted: Jan 23, 2013 4:26 PM
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"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <kdpk0k$mmi$1@newscl01ah.mathworks.com>...
> "Matt J" wrote in message <kdpja4$jnk$1@newscl01ah.mathworks.com>...

> >
> > Don't you mean, that optimization cannot be carried out in the *latter* example? I can see for example why
> >
> > A=B(1,idx)*C
> >
> > might have to extract B(1,idx) to a continguous memory block when C is a matrix. In that case the elements in B(1,idx) will be accessed many times.

> I'm talking about accessing memory of the result, meaning lhs.


If so, why doesn't this apply to both examples? The LHS is the same in these examples.

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