/*	@(#)strspn.c	1.2	*//*LINTLIBRARY*//* * Return the number of characters in the maximum leading segment * of string which consists solely of characters from charset. */intstrspn(string, charset)char	*string;register char	*charset;{	register char *p, *q;	for(q=string; *q != '\0'; ++q) {		for(p=charset; *p != '\0' && *p != *q; ++p)			;		if(*p == '\0')			break;	}	return(q-string);}