put in include for <math.h> so they will return doubles

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

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

static char sccsid[] = "@(#)SQRT.c 1.2 %G%";

#include "h01errs.h"
#include <math.h>

double
SQRT(value)

       double  value;
{
       if (value < 0) {
               ERROR(ESQRT, value);
               return;
       }
       return sqrt(value);
}