Re: how cast works?

Thiago Adams <thiago.adams@gmail.com> writes:

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?

The motivations for integer promotion rules are purely historical.
You're looking for answers in the wrong places.

Also, it would be better for your understanding of C if you would
stop thinking about what is going on at the level of actual
hardware.  Doing that serves to confuse a lot more than it helps.