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/*****************************************************************************
* Johns Hopkins University
* Center For Astrophysical Sciences
* FUSE
*****************************************************************************
*
* Synopsis: n = cf_nint(x)
*
* Description: Converts double to nearest integer.
*
* Variables: double x A double
*
* Return: int n Nearest integer
*
* History: 08/25/03 wvd v1.1 Begin work
* 02/09/04 wvd v1.2 Add cf_nlong()
* 02/17/04 wvd v1.3 Test for overflow of int, long
* 02/18/04 wvd v1.4 Change format of error message.
* Change from values.h to limits.h
*
*************************************************************************/
#include <limits.h>
#include "calfuse.h"
int
cf_nint(double x)
{
if (x > INT_MAX || x < INT_MIN)
cf_if_error("Cannot convert %10.4e to an integer", x);
if (x < 0.) return (int) (x - 0.5);
else return (int) (x + 0.5);
}
long
cf_nlong(double x)
{
if (x > LONG_MAX || x < LONG_MIN)
cf_if_error("Cannot convert %10.4e to a long", x);
if (x < 0.) return (long) (x - 0.5);
else return (long) (x + 0.5);
}
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