diff options
Diffstat (limited to 'src/third_party/js-1.7/fdlibm/s_copysign.c')
-rw-r--r-- | src/third_party/js-1.7/fdlibm/s_copysign.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/third_party/js-1.7/fdlibm/s_copysign.c b/src/third_party/js-1.7/fdlibm/s_copysign.c new file mode 100644 index 00000000000..8869a1233b9 --- /dev/null +++ b/src/third_party/js-1.7/fdlibm/s_copysign.c @@ -0,0 +1,72 @@ +/* -*- 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 ***** */ + +/* @(#)s_copysign.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. + * ==================================================== + */ + +/* + * copysign(double x, double y) + * copysign(x,y) returns a value with the magnitude of x and + * with the sign bit of y. + */ + +#include "fdlibm.h" + +#ifdef __STDC__ + double fd_copysign(double x, double y) +#else + double fd_copysign(x,y) + double x,y; +#endif +{ + fd_twoints ux, uy; + ux.d = x; uy.d = y; + __HI(ux) = (__HI(ux)&0x7fffffff)|(__HI(uy)&0x80000000); + x = ux.d; + return x; +} |