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From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.lang.c++
Subject: Re: Has "stack overflow" specified behavior?
Date: Thu, 16 Dec 2021 20:10:39 -0800
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wij <wyniijj@gmail.com> writes:

[...]

> By the way, I though the 'stack' still must exist no matter how it
> is implemented.  [...]

Some sort of machinery with stack-like behavior must be there, to
support recursive calls if nothing else.  But there doesn't have
to be a "stack" in the sense of a fixed, contiguous region of
memory that is used exclusively for state local to each call of a
function.  Other ways of providing function-local state have been
used, and depending on the operating environment they can be
practical, feasible, or even preferable.