Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!hp4nl!targon!andre
From: andre@targon.UUCP (andre)
Newsgroups: comp.lang.c
Subject: Re: Grabbing "n" arguments in a function
Message-ID: <1320@targon.UUCP>
Date: 7 May 90 15:32:07 GMT
References: <744@tmiuv0.uucp> <1990Apr22.010146.5001@utzoo.uucp>
Reply-To: andre@targon.UUCP (andre)
Organization: Nixdorf Computer BV., DO, P.O. Box 29,Vianen, The Netherlands
Lines: 32

In article <1990Apr22.010146.5001@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes:
]In article <744@tmiuv0.uucp> rick@tmiuv0.uucp writes:
]>What's the most portable way for a function to receive an arbitrary list of
]>arguments? ...
]
]The *only* maximally portable way to do this is to use the <stdargs.h>
]facility in ANSI C.  Using <varargs.h>, found in many current systems,
	[ things you should not do ]

There is one more method though,
accept an 'argv' like array as the argument to your function.
as in,

int number_args (a)
char **a;
{
	int n;

	for (n = 0 ; a[n] ; n++)
	    ;

	return n;
}

And if you malloc and realloc the char * array, this size can
change at runtime, while the varargs approach is fixed at compile time.

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