update from John Gilmore for gcc

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

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

static char sccsid[] = "@(#)LN.c 1.5 %G%";

#include <math.h>

double
LN(value)

       double  value;
{
       if (value <= 0) {
               ERROR("Non-positive argument of %e to ln\n", value);
       }
       return log(value);
}