1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #ifndef mozilla_BigEndianInts_h
8 #define mozilla_BigEndianInts_h
9 
10 #include "mozilla/EndianUtils.h"
11 
12 namespace mozilla {
13 
14 #pragma pack(push, 1)
15 
16 struct BigEndianUint16 {
17 #ifdef __SUNPRO_CC
18   BigEndianUint16& operator=(const uint16_t aValue) {
19     value = NativeEndian::swapToBigEndian(aValue);
20     return *this;
21   }
22 #else
23   MOZ_IMPLICIT BigEndianUint16(const uint16_t aValue) {
24     value = NativeEndian::swapToBigEndian(aValue);
25   }
26 #endif
27 
uint16_tBigEndianUint1628   operator uint16_t() const { return NativeEndian::swapFromBigEndian(value); }
29 
30   friend inline bool operator==(const BigEndianUint16& lhs,
31                                 const BigEndianUint16& rhs) {
32     return lhs.value == rhs.value;
33   }
34 
35   friend inline bool operator!=(const BigEndianUint16& lhs,
36                                 const BigEndianUint16& rhs) {
37     return !(lhs == rhs);
38   }
39 
40  private:
41   uint16_t value;
42 };
43 
44 struct BigEndianUint32 {
45 #ifdef __SUNPRO_CC
46   BigEndianUint32& operator=(const uint32_t aValue) {
47     value = NativeEndian::swapToBigEndian(aValue);
48     return *this;
49   }
50 #else
51   MOZ_IMPLICIT BigEndianUint32(const uint32_t aValue) {
52     value = NativeEndian::swapToBigEndian(aValue);
53   }
54 #endif
55 
uint32_tBigEndianUint3256   operator uint32_t() const { return NativeEndian::swapFromBigEndian(value); }
57 
58  private:
59   uint32_t value;
60 };
61 
62 #pragma pack(pop)
63 
64 }  // namespace mozilla
65 
66 #endif  // mozilla_BigEndianInts_h
67