[unix-history] / usr / src / usr.bin / pascal / libpc / LN.c

/* Copyright (c) 1979 Regents of the University of California */

static char sccsid[] = "@(#)LN.c 1.1 %G%";

#include "h01errs.h"

double
LN(value)

	double	value;
{
	if (value <= 0) {
		ERROR(ELN, value);
		return;
	}
	return log(value);
}
Commit	Line	Data
c4c6b9d5 KM	1	/* Copyright (c) 1979 Regents of the University of California */
	2
	3	static char sccsid[] = "@(#)LN.c 1.1 %G%";
	4
	5	#include "h01errs.h"
	6
	7	double
	8	LN(value)
	9
	10	double value;
	11	{
	12	if (value <= 0) {
	13	ERROR(ELN, value);
	14	return;
	15	}
	16	return log(value);
	17	}