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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: Sugestions for runtime polymorphism
Date: Wed, 14 Sep 2016 16:56:16 -0700
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BartC <bc@freeuk.com> writes:
> On 14/09/2016 21:27, Thiago Adams wrote:
[...]
>> typedef struct
>> {
>>   ObjectType type;
>> } Object;
>
> So, ObjectType is just an int. And you're creating an entire struct just 
> to store that int, which designates a kind of object I presume. And 
> you're calling that struct an Object, while is a little misleading as it 
> doesn't contain or point to any actual data of type 'type'.

A small quibble that doesn't affect your argument: ObjectType (which was
defined as an enumerated type) is an integer type, but it's not an int.
It's compatible with (not identical with) *some* predefined integer
type, but the choice is implementation-defined.  (gcc, for example,
makes it compatible with unsigned int.)

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"