From: Paul Eggert <eggert@cs.ucla.edu>
To: Keith David Bershatsky <esq@lawlist.com>
Cc: emacs-devel@gnu.org
Subject: Re: How to quickly compare equality of structs ...
Date: Mon, 6 May 2019 14:22:37 -0700 [thread overview]
Message-ID: <e9bef831-f6f8-dbdb-fe05-1d37e572d33e@cs.ucla.edu> (raw)
In-Reply-To: <m2sgtr1fmg.wl%esq@lawlist.com>
On 5/6/19 1:40 PM, Keith David Bershatsky wrote:
> C provides no method for comparing equality of structs
You can compare each member of the struct yourself. Or you can use
memset to clear all the bytes in the struct (including padding bytes)
before initializing the struct members, and then use memcmp on the result.
> Based on my limited experience with hash tables in Lisp, I am unable to visualize how I could use such a table in C to do my comparison for each fake cursor ....
I'm sure there's a way.
next prev parent reply other threads:[~2019-05-06 21:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-06 20:40 How to quickly compare equality of structs Keith David Bershatsky
2019-05-06 21:22 ` Paul Eggert [this message]
-- strict thread matches above, loose matches on Subject: below --
2019-05-07 2:59 Keith David Bershatsky
2019-05-07 12:41 ` Stefan Monnier
2019-05-06 23:07 Keith David Bershatsky
2019-05-07 0:49 ` Stefan Monnier
2019-05-06 18:55 Keith David Bershatsky
2019-05-06 19:00 ` Paul Eggert
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