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