1 /*---------------------------------------------------------------------------*
2   Project:  Horizon
3   File:     util_SizedEnum.h
4 
5   Copyright (C)2009 Nintendo Co., Ltd.  All rights reserved.
6 
7   These coded instructions, statements, and computer programs contain
8   proprietary information of Nintendo of America Inc. and/or Nintendo
9   Company Ltd., and are protected by Federal copyright law.  They may
10   not be disclosed to third parties or copied or duplicated in any form,
11   in whole or in part, without the prior written consent of Nintendo.
12 
13   $Rev: 19727 $
14  *---------------------------------------------------------------------------*/
15 
16 #ifndef NN_UTIL_UTIL_SIZEDENUM_H_
17 #define NN_UTIL_UTIL_SIZEDENUM_H_
18 
19 #include <nn/types.h>
20 #include <nn/util/util_StaticAssert.h>
21 
22 #ifdef __cplusplus
23 
24 namespace nn { namespace util {
25 
26 template <typename StorageT, typename EnumT>
27 class SizedEnum
28 {
29 private:
30     typedef SizedEnum<StorageT, EnumT> Self;
31 //    NN_STATIC_ASSERT(sizeof(EnumT) <= sizeof(StorageT));
32 
33 private:
34     StorageT        m_EnumValue;
35 
36 public:
SizedEnum()37     SizedEnum() {}
SizedEnum(EnumT e)38     SizedEnum(EnumT e) { Set(e); }
39 
EnumT()40     operator EnumT() const { return Get(); }
41     Self& operator =(EnumT e) { Set(e); return *this; }
42 
Set(EnumT e)43     void Set(EnumT e) { m_EnumValue = static_cast<EnumT>(e); }
Get()44     EnumT Get() const { return static_cast<EnumT>(m_EnumValue); }
45 };
46 
47 template <typename EnumT>
48 class SizedEnum1 : public SizedEnum<bit8, EnumT>
49 {
50 public:
SizedEnum1()51     SizedEnum1() : SizedEnum<bit8, EnumT>() {}
SizedEnum1(EnumT e)52     SizedEnum1(EnumT e) : SizedEnum<bit8, EnumT>(e) {}
53 };
54 
55 template <typename EnumT>
56 class SizedEnum2 : public SizedEnum<bit16, EnumT>
57 {
58 public:
SizedEnum2()59     SizedEnum2() : SizedEnum<bit16, EnumT>() {}
SizedEnum2(EnumT e)60     SizedEnum2(EnumT e) : SizedEnum<bit16, EnumT>(e) {}
61 };
62 
63 template <typename EnumT>
64 class SizedEnum4 : public SizedEnum<bit32, EnumT>
65 {
66 public:
SizedEnum4()67     SizedEnum4() : SizedEnum<bit32, EnumT>() {}
SizedEnum4(EnumT e)68     SizedEnum4(EnumT e) : SizedEnum<bit32, EnumT>(e) {}
69 };
70 
71 }}
72 
73 
74 #endif // __cplusplus
75 
76 #endif /* NN_UTIL_UTIL_SIZEDENUM_H_ */
77