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- #include <u.h>
- #include <libc.h>
- #define N 256
- char*
- strpbrk(char *cs, char *cb)
- {
- char map[N];
- uchar *s=(uchar*)cs, *b=(uchar*)cb;
- memset(map, 0, N);
- for(;;) {
- map[*b] = 1;
- if(*b++ == 0)
- break;
- }
- while(map[*s++] == 0)
- ;
- if(*--s)
- return (char*)s;
- return 0;
- }
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