From: | Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz> |
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To: | pgsql-general(at)lists(dot)postgresql(dot)org |
Subject: | Re: Alter and move corresponding: was The tragedy of SQL |
Date: | 2021-09-15 23:31:25 |
Message-ID: | 529920d6-8093-4d09-76d5-b9ad38908c76@archidevsys.co.nz |
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Lists: | pgsql-general |
On 16/09/21 05:47, Michael Nolan wrote:
> When I was working at the help desk at the computer center as an
> undergrad, the professor in charge of that group used to give us
> interesting little language tests for things we needed to watch out
> for, especially with beginning programmers.
>
> One of his favorite ploys was to use the EQUIVALENCE function in
> FORTRAN to equivalence a constant with a variable, then assign
> something to that variable. In one of the FORTRAN compilers, that
> would result in overwriting the constant, so all future uses of it
> would have the new value. This would break many things, of course.
> --
> Mike Nolan
>
>
On the IBM 1130 we were warned not to assign a value to a number, like
3 = 7
if we did then apparently
x = 6 * 3
would assign the value of 42 to x.
Never tried it, I now wish I had!
Cheers,
Gavin
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