#include "iostream"

using namespace std;

enum EnumValue
{
One = 100,
Two,
Three
};


template<class EnumType>
struct EnumValueUnit
{
intindexValue;
EnumType enumValue;
};


#define  InvalidateValue((int)-1)
template<typename EnumType>
EnumType MatchToEnum(int index, const EnumValueUnit<EnumType> *enumMap)
{
size_t i = 0;
for (; enumMap[i].indexValue != InvalidateValue; ++i)
{
if (index == enumMap[i].indexValue)
break;
}
return enumMap[i].enumValue;
}


void main()
{
static EnumValueUnit<EnumValue> testMap[] =
{
1,One,
2,Two,
3,Three,
InvalidateValue,One,
};


EnumValue value = MatchToEnum(2, testMap);


cout << value << endl;
}