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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: size_t vs long.
Date: Mon, 21 Nov 2022 08:51:02 -0800
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David Brown <david.brown@hesbynett.no> writes:
[...]
> I don't know what time size_t and malloc became de facto standard in C
> prior to the first ANSI standard, but I think it would have been long 
> before glibc was started.  (I presume it was before the first edition
> of The C Programming Language in 1978.)

K&R1 doesn't mention size_t or malloc.

It does have a sample implementation of a memory allocator called
"alloc" (presented as an example, not as part of the standard library).
It returns an unsigned result; unsigned long didn't exist yet.

It does mention calloc() as part of the standard library.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for XCOM Labs
void Void(void) { Void(); } /* The recursive call of the void */