13e12c5d1SDavid du Colombier #include <u.h> 23e12c5d1SDavid du Colombier #include <libc.h> 33e12c5d1SDavid du Colombier 43e12c5d1SDavid du Colombier #define N 256 53e12c5d1SDavid du Colombier 6*7dd7cddfSDavid du Colombier long strspn(char * s,char * b)73e12c5d1SDavid du Colombierstrspn(char *s, char *b) 83e12c5d1SDavid du Colombier { 93e12c5d1SDavid du Colombier char map[N], *os; 103e12c5d1SDavid du Colombier 113e12c5d1SDavid du Colombier memset(map, 0, N); 123e12c5d1SDavid du Colombier while(*b) 133e12c5d1SDavid du Colombier map[*(uchar *)b++] = 1; 143e12c5d1SDavid du Colombier os = s; 153e12c5d1SDavid du Colombier while(map[*(uchar *)s++]) 163e12c5d1SDavid du Colombier ; 173e12c5d1SDavid du Colombier return s - os - 1; 183e12c5d1SDavid du Colombier } 19