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Message from discussion Transfer and variables that don't use all their storage space.
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James Giles  
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 More options Apr 9 2007, 2:31 pm
Newsgroups: comp.lang.fortran
From: "James Giles" <jamesgi...@worldnet.att.net>
Date: Mon, 09 Apr 2007 18:31:20 GMT
Local: Mon, Apr 9 2007 2:31 pm
Subject: Re: Transfer and variables that don't use all their storage space.
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Richard Maine wrote:
> [...]     then copying the same bits
> to another location doesn't preserve their meaning.

Exactly the point I made last time: TRANSFER deals with
internal represenatations while assignment (and most other
features of the language) deal with values.  There's no
requirement that operations on values must preserve
representations.

Pointers and garbage collect are a good case in point.
Another reason that your assumption that an intermediate
assignment should be considered fair use of the TRANSFER
identity we've been talking about is just wrong.

--
J. Giles

"I conclude that there are two ways of constructing a software
design: One way is to make it so simple that there are obviously
no deficiencies and the other way is to make it so complicated
that there are no obvious deficiencies."   --  C. A. R. Hoare


 
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