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From: wirzeniu@klaava.Helsinki.FI (Lars Wirzenius)
Newsgroups: comp.lang.c
Subject: Re: Initializing arrays, an advise is needed.
Message-ID: <1991May7.163840.629@klaava.Helsinki.FI>
Date: 7 May 91 16:38:40 GMT
References: <1991May7.044811.27782@cec1.wustl.edu>
Sender: news@klaava.Helsinki.FI (Uutis Ankka)
Organization: University of Helsinki
Lines: 29

In article <1991May7.044811.27782@cec1.wustl.edu> abed@saturn.wustl.edu (Abed M. Hammoud) writes:
>	I have a program that calls a routine multiple times while
>	running. Every time the routine get called it have to calculate
>	samples of a function say sin(x) and fill an array of like
>	n values long. where n, is the same during a given run.

One thing you could do is to have a static array inside your function
and compute its elements as needed. For example, if you function is
called foo:

	void foo(int n) {
		static int f[MAX_N] = { 1, 1 };
		static int computed = 2;
		
		while (computed <= n) {
			f[computed] = f[computed-1] * computed;
			++computed;
		}
		
		...
	}

(This isn't quite your example, but I hope you get the idea.) Since 'f'
and 'computed' are static, they keep their values from one call to
another. 

Lars Wirzenius  wirzenius@cc.helsinki.fi
-- 
Lars Wirzenius  wirzenius@cc.helsinki.fi