Dear All:
int memcmp(const void *cs, const void *ct, size_t count)
{
const unsigned char *su1, *su2;
int res = 0;for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) if ((res = *su1 - *su2) != 0) break; return res; } I want to know why it use the temp pointer su1, su2? why it doesn't directly use the cs and ct pointer?
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