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author | Eliot Horowitz <eliot@10gen.com> | 2011-08-19 18:09:18 -0400 |
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committer | Eliot Horowitz <eliot@10gen.com> | 2011-08-21 01:34:54 -0400 |
commit | d40cad9feb14c0a2be44ddbe693a178181c4dbb1 (patch) | |
tree | 9abee1bef979ea3946dfcdea461549de74f64989 /third_party/js-1.7/fdlibm/e_scalb.c | |
parent | f33cd59e7439f886681ff0b145fcb592187dc217 (diff) | |
download | mongo-d40cad9feb14c0a2be44ddbe693a178181c4dbb1.tar.gz |
combine sm in source
Diffstat (limited to 'third_party/js-1.7/fdlibm/e_scalb.c')
-rw-r--r-- | third_party/js-1.7/fdlibm/e_scalb.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/third_party/js-1.7/fdlibm/e_scalb.c b/third_party/js-1.7/fdlibm/e_scalb.c new file mode 100644 index 00000000000..621704ea048 --- /dev/null +++ b/third_party/js-1.7/fdlibm/e_scalb.c @@ -0,0 +1,89 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Mozilla Communicator client code, released + * March 31, 1998. + * + * The Initial Developer of the Original Code is + * Sun Microsystems, Inc. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + +/* @(#)e_scalb.c 1.3 95/01/18 */ +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunSoft, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +/* + * __ieee754_scalb(x, fn) is provide for + * passing various standard test suite. One + * should use scalbn() instead. + */ + +#include "fdlibm.h" + +#ifdef _SCALB_INT +#ifdef __STDC__ + double __ieee754_scalb(double x, int fn) +#else + double __ieee754_scalb(x,fn) + double x; int fn; +#endif +#else +#ifdef __STDC__ + double __ieee754_scalb(double x, double fn) +#else + double __ieee754_scalb(x,fn) + double x, fn; +#endif +#endif +{ +#ifdef _SCALB_INT + return fd_scalbn(x,fn); +#else + if (fd_isnan(x)||fd_isnan(fn)) return x*fn; + if (!fd_finite(fn)) { + if(fn>0.0) return x*fn; + else return x/(-fn); + } + if (fd_rint(fn)!=fn) return (fn-fn)/(fn-fn); + if ( fn > 65000.0) return fd_scalbn(x, 65000); + if (-fn > 65000.0) return fd_scalbn(x,-65000); + return fd_scalbn(x,(int)fn); +#endif +} |