125c28e83SPiotr Jasiukajtis /* 225c28e83SPiotr Jasiukajtis * CDDL HEADER START 325c28e83SPiotr Jasiukajtis * 425c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 525c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 625c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 725c28e83SPiotr Jasiukajtis * 825c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 925c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 1025c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 1125c28e83SPiotr Jasiukajtis * and limitations under the License. 1225c28e83SPiotr Jasiukajtis * 1325c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 1425c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1525c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 1625c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 1725c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 1825c28e83SPiotr Jasiukajtis * 1925c28e83SPiotr Jasiukajtis * CDDL HEADER END 2025c28e83SPiotr Jasiukajtis */ 2125c28e83SPiotr Jasiukajtis 2225c28e83SPiotr Jasiukajtis /* 2325c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 2425c28e83SPiotr Jasiukajtis */ 2525c28e83SPiotr Jasiukajtis /* 2625c28e83SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 2725c28e83SPiotr Jasiukajtis * Use is subject to license terms. 2825c28e83SPiotr Jasiukajtis */ 2925c28e83SPiotr Jasiukajtis 3025c28e83SPiotr Jasiukajtis /* 3125c28e83SPiotr Jasiukajtis * ceill(x) return the biggest integral value below x 3225c28e83SPiotr Jasiukajtis * floorl(x) return the least integral value above x 3325c28e83SPiotr Jasiukajtis * 3425c28e83SPiotr Jasiukajtis * NOTE: aintl(x), anintl(x), ceill(x), floorl(x), and rintl(x) return result 3525c28e83SPiotr Jasiukajtis * with the same sign as x's, including 0.0. 3625c28e83SPiotr Jasiukajtis */ 3725c28e83SPiotr Jasiukajtis 38*ddc0e0b5SRichard Lowe #pragma weak __ceill = ceill 39*ddc0e0b5SRichard Lowe #pragma weak __floorl = floorl 4025c28e83SPiotr Jasiukajtis 4125c28e83SPiotr Jasiukajtis #include "libm.h" 4225c28e83SPiotr Jasiukajtis #include "longdouble.h" 4325c28e83SPiotr Jasiukajtis 4425c28e83SPiotr Jasiukajtis static const long double qone = 1.0L; 4525c28e83SPiotr Jasiukajtis 4625c28e83SPiotr Jasiukajtis long double 4725c28e83SPiotr Jasiukajtis ceill(long double x) { 4825c28e83SPiotr Jasiukajtis long double t; 4925c28e83SPiotr Jasiukajtis 5025c28e83SPiotr Jasiukajtis if (!finitel(x)) 5125c28e83SPiotr Jasiukajtis return (x + x); 5225c28e83SPiotr Jasiukajtis t = rintl(x); 5325c28e83SPiotr Jasiukajtis if (t >= x) /* already ceil(x) */ 5425c28e83SPiotr Jasiukajtis return (t); 5525c28e83SPiotr Jasiukajtis else /* t < x case: return t+1 */ 5625c28e83SPiotr Jasiukajtis return (copysignl(t + qone, x)); 5725c28e83SPiotr Jasiukajtis } 5825c28e83SPiotr Jasiukajtis 5925c28e83SPiotr Jasiukajtis long double 6025c28e83SPiotr Jasiukajtis floorl(long double x) { 6125c28e83SPiotr Jasiukajtis long double t; 6225c28e83SPiotr Jasiukajtis 6325c28e83SPiotr Jasiukajtis if (!finitel(x)) 6425c28e83SPiotr Jasiukajtis return (x + x); 6525c28e83SPiotr Jasiukajtis t = rintl(x); 6625c28e83SPiotr Jasiukajtis if (t <= x) 6725c28e83SPiotr Jasiukajtis return (t); /* already floor(x) */ 6825c28e83SPiotr Jasiukajtis else /* x < t case: return t-1 */ 6925c28e83SPiotr Jasiukajtis return (copysignl(t - qone, x)); 7025c28e83SPiotr Jasiukajtis } 71