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Article View: comp.std.c++
Article #530

Re: Packing, Ordering, and Rearranging

#530
From: Tim Iverson
Date: Fri, 28 Sep 1990 23:12
28 lines
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In article <2275@ux.acs.umn.edu> dhoyt@vw.acs.umn.edu writes:
>In article <204@xstor.UUCP>, iverson@xstor.UUCP (Tim Iverson) writes...
>>[no std => not portable (usability-wise)]
>
>[std => not portable (speed-wise)]
>
>  The ONLY time that there is a real need for the programmer to understand
>the underlying structure layout is when the programmer is dealing device
>drivers and whatnot.  The need to save memory (aka 640k) is better addressed
>by a make-structures-very-tight switch on the compiler.

Actually, 90% of what I write has to interface with with the real world, so
I consider the "works" option to be far more important than the "speed"
option; it's highly annoying to have to tune a program's structures every
time I switch compilers, simply because every vender tries to be different.

For strange machines that have such costly restrictions on alignment, such
as the Cray, I would mind less having to do a little work to bring the speed
up than I would mind having to work to make it go at all (i.e. *first* turn
the key, *then* step on the gas).

Tell me, which is more important to your management: "it works", or "when
it works, it'll be fast"?

>david paul hoyt | dhoyt@vx.acs.umn.edu | dhoyt@umnacvx.bitnet                

- Tim Iverson
  iverson!uunet!xstor
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References: <2275@ux.acs.umn.edu>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!xstor!iverson
From: iverson@xstor.UUCP (Tim Iverson)
Newsgroups: comp.std.c++
Subject: Re: Packing, Ordering, and Rearranging
Message-ID: <206@xstor.UUCP>
Date: 28 Sep 90 23:12:28 GMT
References: <2275@ux.acs.umn.edu>
Reply-To: iverson@xstor.UUCP (Tim Iverson)
Organization: Storage Dimensions, Inc.
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