fixsfdi.c revision 358230
11573Srgrimes/*- 21573Srgrimes * Copyright (c) 1992 The Regents of the University of California. 31573Srgrimes * All rights reserved. 41573Srgrimes * 51573Srgrimes * This software was developed by the Computer Systems Engineering group 61573Srgrimes * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 71573Srgrimes * contributed to Berkeley. 81573Srgrimes * 91573Srgrimes * Redistribution and use in source and binary forms, with or without 101573Srgrimes * modification, are permitted provided that the following conditions 111573Srgrimes * are met: 121573Srgrimes * 1. Redistributions of source code must retain the above copyright 131573Srgrimes * notice, this list of conditions and the following disclaimer. 141573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 151573Srgrimes * notice, this list of conditions and the following disclaimer in the 161573Srgrimes * documentation and/or other materials provided with the distribution. 171573Srgrimes * 4. Neither the name of the University nor the names of its contributors 181573Srgrimes * may be used to endorse or promote products derived from this software 191573Srgrimes * without specific prior written permission. 201573Srgrimes * 211573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311573Srgrimes * SUCH DAMAGE. 321573Srgrimes */ 331573Srgrimes 341573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 351573Srgrimesstatic char sccsid[] = "@(#)fixsfdi.c 5.1 (Berkeley) 7/7/92"; 361573Srgrimes#endif /* LIBC_SCCS and not lint */ 3792986Sobrien#include <sys/cdefs.h> 3892986Sobrien__FBSDID("$FreeBSD: stable/11/lib/libc/quad/fixsfdi.c 358230 2020-02-21 21:57:24Z dim $"); 391573Srgrimes 401573Srgrimes#include "quad.h" 411573Srgrimes 421573Srgrimes/* 431573Srgrimes * Convert float to (signed) quad. 441573Srgrimes * We clamp anything that is out of range. 451573Srgrimes * 461573Srgrimes * N.B.: must use new ANSI syntax (sorry). 471573Srgrimes */ 481573Srgrimeslong long 491573Srgrimes__fixsfdi(float x) 501573Srgrimes{ 511573Srgrimes if (x < 0) 52358230Sdim if (x <= (float)QUAD_MIN) 531573Srgrimes return (QUAD_MIN); 541573Srgrimes else 551573Srgrimes return ((quad_t)-(u_quad_t)-x); 561573Srgrimes else 57358230Sdim if (x >= (float)QUAD_MAX) 581573Srgrimes return (QUAD_MAX); 591573Srgrimes else 601573Srgrimes return ((quad_t)(u_quad_t)x); 611573Srgrimes} 62