ref: 1258e68dd96e65545956fb658b9235e52c99d6a4
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 map[__NUMCHARS] = {0}; while ((ch = *accept++) != 0) map[ch] = 1; while ((ch = *s) != 0 && !map[ch]) s++; return (ch == '\0') ? NULL : s; }