/* * (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands. * See the copyright notice in the ACK home directory, in the file "Copyright". * * Author: Ceriel J.H. Jacobs */ /* $Header: /cvsup/minix/src/lib/math/ceil.c,v 1.1.1.1 2005/04/21 14:56:26 beng Exp $ */ #include double ceil(double x) { double val; return modf(x, &val) > 0 ? val + 1.0 : val ; /* this also works if modf always returns a positive fractional part */ }