1 /*- 2 * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include "cdefs-compat.h" 28 //__FBSDID("$FreeBSD: src/lib/msun/src/s_scalbln.c,v 1.2 2005/03/07 04:57:50 das Exp $"); 29 30 #include <limits.h> 31 #include <openlibm.h> 32 #include "math_private.h" 33 34 DLLEXPORT double 35 scalbln (double x, long n) 36 { 37 int in; 38 39 in = (int)n; 40 if (in != n) { 41 if (n > 0) 42 in = INT_MAX; 43 else 44 in = INT_MIN; 45 } 46 return (scalbn(x, in)); 47 } 48 49 DLLEXPORT float 50 scalblnf (float x, long n) 51 { 52 int in; 53 54 in = (int)n; 55 if (in != n) { 56 if (n > 0) 57 in = INT_MAX; 58 else 59 in = INT_MIN; 60 } 61 return (scalbnf(x, in)); 62 } 63 64 DLLEXPORT long double 65 scalblnl (long double x, long n) 66 { 67 int in; 68 69 in = (int)n; 70 if (in != n) { 71 if (n > 0) 72 in = INT_MAX; 73 else 74 in = INT_MIN; 75 } 76 return (scalbnl(x, (int)n)); 77 } 78