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From: Thiago Adams <thiago.adams@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: how cast works?
Date: Wed, 7 Aug 2024 08:33:38 -0300
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I also would like to understand better why integer promotions were created.

My guess..it is because the values are used in registers and there is no 
"char" size register so the values are converted in a bigger type.
Is my guess correct?