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serialis.cpp
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1 /**********************************************************************
2  * File: serialis.h (Formerly serialmac.h)
3  * Description: Inline routines and macros for serialisation functions
4  * Author: Phil Cheatle
5  * Created: Tue Oct 08 08:33:12 BST 1991
6  *
7  * (C) Copyright 1990, Hewlett-Packard Ltd.
8  ** Licensed under the Apache License, Version 2.0 (the "License");
9  ** you may not use this file except in compliance with the License.
10  ** You may obtain a copy of the License at
11  ** http://www.apache.org/licenses/LICENSE-2.0
12  ** Unless required by applicable law or agreed to in writing, software
13  ** distributed under the License is distributed on an "AS IS" BASIS,
14  ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  ** See the License for the specific language governing permissions and
16  ** limitations under the License.
17  *
18  **********************************************************************/
19 
20 #include "mfcpch.h" //precompiled headers
21 #include "serialis.h"
22 #include "scanutils.h"
23 
24 // Byte swap an inT64 or uinT64.
26  return ((uinT64)reverse32((uinT32)(num & 0xffffffff)) << 32)
27  | reverse32((uinT32)((num >> 32) & 0xffffffff));
28 }
29 
30 /**********************************************************************
31  * reverse32
32  *
33  * Byte swap an inT32 or uinT32.
34  **********************************************************************/
35 
36 DLLSYM uinT32 reverse32( //switch endian
37  uinT32 num //number to fix
38  ) {
39  return (reverse16 ((uinT16) (num & 0xffff)) << 16)
40  | reverse16 ((uinT16) ((num >> 16) & 0xffff));
41 }
42 
43 
44 /**********************************************************************
45  * reverse16
46  *
47  * Byte swap an inT16 or uinT16.
48  **********************************************************************/
49 
50 DLLSYM uinT16 reverse16( //switch endian
51  uinT16 num //number to fix
52  ) {
53  return ((num & 0xff) << 8) | ((num >> 8) & 0xff);
54 }