?? bx.c
字號:
unsignedgood (unsigned src, unsigned o5, unsigned w5){ return src & ~((w5 == 0) ? (~0 << o5) : (1 << o5));}unsignedbad (unsigned src, unsigned o5, unsigned w5){ return src & ((w5 == 0) ? ~(~0 << o5) : ~(1 << o5));}
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