ref: 65c444328c354a3620bab5b37ceb157e6fad8f17
dir: /src/libc/string/strpbrk.c/
#include <string.h> #undef strpbrk char * strpbrk(const char *s1, const char *s2) { const unsigned char *s = s1; const unsigned char *accept = s2; unsigned ch; char buf[__NUMCHARS]; memset(buf, 0, sizeof(buf)); while (ch = *accept++) buf[ch] = 1; while ((ch = *s) && !buf[ch]) s++; return (ch == '\0') ? NULL : (char *) s; }