1 /* 2 * strspn - find length of initial segment of s consisting entirely 3 * of characters from accept 4 */ 5 6 int strspn(s,accept)7strspn(s, accept) 8 char *s; 9 char *accept; 10 { 11 register char *sscan; 12 register char *ascan; 13 register int count; 14 15 count = 0; 16 for (sscan = s; *sscan != '\0'; sscan++) { 17 for (ascan = accept; *ascan != '\0'; ascan++) 18 if (*sscan == *ascan) 19 break; 20 if (*ascan == '\0') 21 return(count); 22 count++; 23 } 24 return(count); 25 } 26