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From: Lawrence D'Oliveiro <ldo@nz.invalid>
Newsgroups: comp.lang.c
Subject: Re: C23 enums
Date: Thu, 20 Jun 2024 00:50:09 -0000 (UTC)
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On Wed, 19 Jun 2024 09:38:24 -0300, Thiago Adams wrote:

> On 19/06/2024 04:24, Lawrence D'Oliveiro wrote:
>
>> On Tue, 18 Jun 2024 08:09:13 -0300, Thiago Adams wrote:
>> 
>>> This creates a kind of encapsulation.
>> 
>> Why not just use “int” or “unsigned int”? Why does the caller even need 
to
>> know it’s an enum?
> 
> The advantage will be the type check at the implementation file (some 
> compiler have extra type check for enuns) ...

Obviously this is not a language requirement, so I’m not sure of the 
point. E.g. GCC compiles this rather flagrant example without complaint:

    enum colours {red, green, blue};

    enum colours colour = 9;

I even tried “-Wall -Wpedantic”, to no effect.

> ... and clarity about the possible values accepted.

As a documentation aid? Again, that’s implementation-specific, nothing to 
do with the caller-visible interface.