ViewVC Help
View File | Revision Log | Show Annotations | Download File | Root Listing
root/radiance/ray/src/common/frexp.c
(Generate patch)

Comparing ray/src/common/frexp.c (file contents):
Revision 1.2 by greg, Sat Feb 22 02:07:22 2003 UTC vs.
Revision 1.4 by greg, Wed Nov 12 18:06:54 2003 UTC

# Line 1 | Line 1
1   #ifndef lint
2   static const char       RCSid[] = "$Id$";
3   #endif
4 – /* ====================================================================
5 – * The Radiance Software License, Version 1.0
6 – *
7 – * Copyright (c) 1990 - 2002 The Regents of the University of California,
8 – * through Lawrence Berkeley National Laboratory.   All rights reserved.
9 – *
10 – * Redistribution and use in source and binary forms, with or without
11 – * modification, are permitted provided that the following conditions
12 – * are met:
13 – *
14 – * 1. Redistributions of source code must retain the above copyright
15 – *         notice, this list of conditions and the following disclaimer.
16 – *
17 – * 2. Redistributions in binary form must reproduce the above copyright
18 – *       notice, this list of conditions and the following disclaimer in
19 – *       the documentation and/or other materials provided with the
20 – *       distribution.
21 – *
22 – * 3. The end-user documentation included with the redistribution,
23 – *           if any, must include the following acknowledgment:
24 – *             "This product includes Radiance software
25 – *                 (http://radsite.lbl.gov/)
26 – *                 developed by the Lawrence Berkeley National Laboratory
27 – *               (http://www.lbl.gov/)."
28 – *       Alternately, this acknowledgment may appear in the software itself,
29 – *       if and wherever such third-party acknowledgments normally appear.
30 – *
31 – * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
32 – *       and "The Regents of the University of California" must
33 – *       not be used to endorse or promote products derived from this
34 – *       software without prior written permission. For written
35 – *       permission, please contact [email protected].
36 – *
37 – * 5. Products derived from this software may not be called "Radiance",
38 – *       nor may "Radiance" appear in their name, without prior written
39 – *       permission of Lawrence Berkeley National Laboratory.
40 – *
41 – * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42 – * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43 – * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 – * DISCLAIMED.   IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
45 – * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 – * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 – * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48 – * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49 – * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50 – * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51 – * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 – * SUCH DAMAGE.
53 – * ====================================================================
54 – *
55 – * This software consists of voluntary contributions made by many
56 – * individuals on behalf of Lawrence Berkeley National Laboratory.   For more
57 – * information on Lawrence Berkeley National Laboratory, please see
58 – * <http://www.lbl.gov/>.
59 – */
4  
5 + double
6   frexp(x, ip)            /* call it paranoia, I've seen the lib version */
7 < register double  x;
7 > double  x;
8   int  *ip;
9   {
10          int  neg;
# Line 76 | Line 21 | int  *ip;
21                          x *= 2.0;
22          else
23                  for (i = 0; x >= 1.0; i++)
24 <                        x /= 2.0;
24 >                        x *= 0.5;
25          *ip = i;
26 <        if (neg)
82 <                return(-x);
83 <        else
84 <                return(x);
26 >        return (neg ? -x : x);
27   }

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines