source: trunk/minix/lib/math/ceil.c@ 11

Last change on this file since 11 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a

File size: 468 bytes
RevLine 
[9]1/*
2 * (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
3 * See the copyright notice in the ACK home directory, in the file "Copyright".
4 *
5 * Author: Ceriel J.H. Jacobs
6 */
7/* $Header: /cvsup/minix/src/lib/math/ceil.c,v 1.1.1.1 2005/04/21 14:56:26 beng Exp $ */
8
9#include <math.h>
10
11double
12ceil(double x)
13{
14 double val;
15
16 return modf(x, &val) > 0 ? val + 1.0 : val ;
17 /* this also works if modf always returns a positive
18 fractional part
19 */
20}
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