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C++ 用于获取枚举值的名字

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  • Post category:其他



template


<


class


Child>

02
class


EnumBase

03
{

04
protected


:

05


//typedef typename Child::Et Et;

06


struct


EnumProperty

07


{

08


const


char


* mName;

09


int


mEt;

10


};

11

12
public


:

13

14


static


int


toEnum(


const


char


* name)

15


{

16


int


size = 0;

17


const


EnumProperty * pP = Child::getEnumPropertys(size);

18


for


(


int


iter = 0;iter < size ; ++ iter)

19


{

20


if


(


strcmp


(pP[iter].mName,name) == 0)

21


return


pP[iter].mEt;

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}

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return


0;

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}

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static


const


char


* toString(


int


et)

27


{

28


int


size = 0;

29


const


EnumProperty * pP = Child::getEnumPropertys(size);

30


for


(


int


iter = 0;iter < size ; ++ iter)

31


{

32


if


(pP[iter].mEt == et)

33


return


pP[iter].mName;

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}

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return


0;

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}

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};

38

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#define TOSTRING(t) #t

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#define MAP_TO_STRING(ot)   TOSTRING(ot),ot

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class


DamageType :


public


EnumBase<DamageType>

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{

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public


:

45


enum


Et{

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Wood = 0x01,

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Stone = 0x02,

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Metal = 0x04,

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Ice = 0x08,

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Other = 0x10,

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DamageAdditionEnd = 0x20,

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};

53


struct


x{};

54

55


static


const


EnumProperty* getEnumPropertys(


int


&size)

56


{

57


const


static


EnumProperty __[] =

58


{

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{MAP_TO_STRING(Wood)},

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{MAP_TO_STRING(Stone)},

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{MAP_TO_STRING(Metal)},

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{MAP_TO_STRING(Ice)},

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{MAP_TO_STRING(Other)},

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};

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size =


sizeof


(__)/


sizeof


(__[0]);

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return


__;

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}

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};

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int


main()

71
{

72


printf


(


"%d\n"


,DamageType::toEnum(


"Wood"


));

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printf


(


"%d\n"


,DamageType::toEnum(


"Stone"


));

74


printf


(


"%d\n"


,DamageType::toEnum(


"Metal"


));

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printf


(


"%d\n"


,DamageType::toEnum(


"Ice"


));

76


printf


(


"%d\n"


,DamageType::toEnum(


"Other"


));

77

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printf


(


"%s\n"


,DamageType::toString(DamageType::Wood));

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printf


(


"%s\n"


,DamageType::toString(DamageType::Stone));

80


printf


(


"%s\n"


,DamageType::toString(DamageType::Metal));

81


printf


(


"%s\n"


,DamageType::toString(DamageType::Ice));

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printf


(


"%s\n"


,DamageType::toString(DamageType::Other));

83


return


0;

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}