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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: printf and time_t
Date: Sun, 08 Feb 2026 04:03:23 -0800
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Janis Papanagnou <janis_papanagnou+ng@hotmail.com> writes:
[...]
> C's "varargs" mechanism always appeared kludgy to me. Though I
> haven't followed "varargs" in "C" since K&R times, but I've a
> faint impression that something has been done and changed since
> back then.  What was it, or is it still supported [only] in its
> original form?

Pre-ANSI C had a <varargs.h> header, used to process arguments to
variadic functions like printf.  C89 replaced it with <stdarg.h>,
which hasn't changed much since then.  Consult any recent standard
draft for details.  C23 removes the requirement for the last
non-variadic argument to be passed to the va_start macro, allowing
for functions with *only* variadic parameters.

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