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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: What is wrong with malloc?
Date: Wed, 08 Jan 2025 14:12:43 -0800
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David Brown <david.brown@hesbynett.no> writes:
[...]
> There are basically two classes of small embedded devices - those that
> are usually programmed with gcc (and sometimes clang, and occasionally
> vastly expensive commercial tools), and those that are programmed
> using non-standard, limited and often expensive sort-of-C compilers.
> For people using gcc, clang, Green Hills, Code Warrior, or other
> quality tools on a 16-bit or 32-bit microcontroller, C99 is not a
> problem.  C23 is not a problem for the most popular toolchain for the
> most popular microcontroller core.
[...]

It's also worth mentioning that the standard specifies two kinds of
implementations, "hosted" and "freestanding".

A hosted implementation must provide the entire standard library (except
for parts that are explicitly optional).  The program entry point is
"main".  Larger embedded systems (for example, Linux-based systems)
often have "hosted" implementations.

In a freestanding implementation, most of the standard library need not
be provided.  Library facilities are implementation-defined, as is the
program entry point.  Freestanding implementations generally target
systems with no operating system.  There might not be a malloc()
function.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */