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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: structs passed by copy
Date: Sat, 11 Feb 2023 15:08:04 -0800
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Jorgen Grahn <grahn+nntp@snipabacken.se> writes:
> On Fri, 2023-01-20, Thiago Adams wrote:
[...]
>> Do  you have structs passed by copy in your code?
>
> Yes, a lot. I don't write C these days, but last time I got to design
> new C code, in 2014 or so, I used the feature heavily, to get some
> properties I'd normally get from C++. I think call by value is one of
> the great things about the C family of languages.
>
>> Could it be replaced by const * ?
>
> No.

Could you expand on that?  I would think that any instance of passing a
struct by copy could be straightforwardly replaced by passing it by
const*, assuming your able to modify both the caller and the callee.
I'm not suggesting that this *should* be done, but you seem to be saying
that it *couldn't*.  (I could be a good idea for large structs.)

[...]

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for XCOM Labs
void Void(void) { Void(); } /* The recursive call of the void */