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typedef unsigned int uint32_t;
enum MaskingOperator {
eMaskingOperatorDefault = 0,
eMaskingOperatorAnd = 1,
eMaskingOperatorOr = 2,
eMaskingOperatorXor = 3,
eMaskingOperatorNand = 4,
eMaskingOperatorNor = 5
};
class MaskedData {
private:
uint32_t value;
uint32_t mask;
MaskingOperator oper;
public:
MaskedData(uint32_t V = 0, uint32_t M = 0,
MaskingOperator P = eMaskingOperatorDefault)
: value(V), mask(M), oper(P) {}
uint32_t apply() {
switch (oper) {
case eMaskingOperatorAnd:
return value & mask;
case eMaskingOperatorOr:
return value | mask;
case eMaskingOperatorXor:
return value ^ mask;
case eMaskingOperatorNand:
return ~(value & mask);
case eMaskingOperatorNor:
return ~(value | mask);
case eMaskingOperatorDefault: // fall through
default:
return value;
}
}
void setValue(uint32_t V) { value = V; }
void setMask(uint32_t M) { mask = M; }
void setOperator(MaskingOperator P) { oper = P; }
};
int main() {
MaskedData data_1(0xFF0F, 0xA01F, eMaskingOperatorAnd);
MaskedData data_2(data_1.apply(), 0x1AFC, eMaskingOperatorXor);
MaskedData data_3(data_2.apply(), 0xFFCF, eMaskingOperatorOr);
MaskedData data_4(data_3.apply(), 0xAABC, eMaskingOperatorAnd);
MaskedData data_5(data_4.apply(), 0xFFAC, eMaskingOperatorNor);
MaskedData data_6(data_5.apply(), 0x0000BEEF, eMaskingOperatorAnd);
return data_6.apply(); // <-- what comes out of here?
}
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