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Date: Wed, 12 Feb 2014 11:06:18 -0800 (PST)
From: Richard <richard@KarmannGhia.org>
To: David Conrad <DavidConrad@acm.org>
cc: Andrey Repin <cygwin@cygwin.com>
Subject: Re: g77 on cygwin64
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References: <52FAF082.6020805@appstate.edu> <52FB0686.8080403@gmail.com> <52FB13E2.1070107@appstate.edu> <724410821.20140212111451@mtu-net.ru> <CAMCbSMoqb_TsY3BQSU-AwnCOuCYecwCw4YexBQuUhbAbpSNDQg@mail.gmail.com> <52FB8E3C.3030704@appstate.edu> <1436686110.20140212211626@mtu-net.ru> <CAEotdwn+dWCyiw2a6oN987XOP2Fs6BkAfkwChe5ZH3UWs3d=Cg@mail.gmail.com>
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On Wed, 12 Feb 2014, David Conrad wrote:
>
> Since the problem occurs going from 32-bit to 64-bit Cygwin, it sounds
> to me like all-the-world's-a-VAX syndrome. I bet there are places
> where it reads from files and assumes that if it reads N words into
> integers, that is N 32-bit quantities, or something like that. I
> haven't written any Fortran since the 1980s, but I bet there are types
> that have changed size due to the switch to 64-bit and that results in
> reading incorrect values from files, including reading some of them
> from the wrong file offsets, and hitting end-of-file at a different
> point.

It's called, "inadvertent varriable sharing."

Yeah, I was there, fought those battles. The proof of what was going on 
was found in crash dumps. ...This was from the era when "RISC 
architecture" meant "Relegate all the Important Sh_t to the Compiler."

Richard

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