forked from OSchip/llvm-project
74 lines
1.4 KiB
C++
74 lines
1.4 KiB
C++
typedef unsigned int uint32_t;
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enum MaskingOperator
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{
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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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{
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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,
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uint32_t M = 0,
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MaskingOperator P = eMaskingOperatorDefault) :
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value(V),
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mask(M),
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oper(P)
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{
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}
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uint32_t apply()
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{
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switch(oper)
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{
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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)
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{
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value = V;
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}
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void setMask (uint32_t M)
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{
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mask = M;
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}
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void setOperator(MaskingOperator P)
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{
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oper = P;
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}
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};
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int main()
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{
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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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} |