?? str_diffn.c
字號:
#include "str.h"int str_diffn(s,t,len)register char *s;register char *t;unsigned int len;{ register char x; for (;;) { if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t; if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t; if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t; if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t; } return ((int)(unsigned int)(unsigned char) x) - ((int)(unsigned int)(unsigned char) *t);}?? 快捷鍵說明
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