HELP !! Why doesn't it run on my machine ???

[Amos Shapir]

Your problems seems to be bad programming, not bad coding.  Instead of
computing an exact value directly, you introduce inexactness by using
floating-point (which might be rounded differently on different machines)
then trying to improve the generated 'guess' by binary search.

Here is a better algorithm, which computes day number from a given date;
I leave changing the epoch and adding the hour/minute stuff as an exercise
to the reader :-)

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/*
 * Gauss's formula - days since the 1.1.70 epoch
 */
days(d, m, y)
	register m, y, d;
{

	if(y < 100)
		y += 1900;
	if((m -= 2) <= 0) {
		m += 12;
		y--;
	}

	/* Gregorian calendar */
	d += 365*y+y/4-y/100+y/400+367*m/12-719499;

	return d;
}

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May the Source be with you, always...
-- 
	Amos Shapir		amos at taux01.nsc.com or amos at nsc.nsc.com
National Semiconductor (Israel) P.O.B. 3007, Herzlia 46104, Israel
Tel. +972 52 522261  TWX: 33691, fax: +972-52-558322
34 48 E / 32 10 N			(My other cpu is a NS32532)