ref: 590ba0dfe7a73ab2e47fe333cf700e01d9cda6e9
dir: /lib/c/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; }