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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.forth
Subject: Re: Forth dictionary implementation and performance
Date: Fri, 29 Jan 2016 16:20:06 -0800
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anton@mips.complang.tuwien.ac.at (Anton Ertl) writes:
> The reference program was given in C, and can be found on
> <https://www.complang.tuwien.ac.at/anton/lvas/effizienz-aufgabe15/#vorgabe>.

I'm puzzled by this program: it opens the file in read-only mode, but
then mmaps the file descriptor with PROT_READ|PROT_WRITE and modifies
one of the mapped-in pages.  I thought the mmap call wasn't supposed to
allow PROT_WRITE unless the file was open for writing, but I see that
it's working anyway.

As a secondary style issue, I'd use uint64_t instead of unsigned long
for the hash and related values.  I was thinking of trying the program
on an ARM so I'll have to fix that.