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布尔代数和交换两个变量的值 #88

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Triment opened this issue Jul 13, 2023 · 0 comments

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Triment commented Jul 13, 2023 •

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加法逆元 a^a=0

*y = *x^*y;
*x = *x^*y;
*y= *x^y;

1: y=x^y
2: x = x^y^x = y^0=y
3: y = y^x^y =x^0 =x

~0可以生成全1掩码而不论使用多长的位表示变量

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