strlen.c

<B>Digital的Unix操作系统VAX 4.2源码</B>

/* @(#)strlen.c	4.1 (Berkeley) 12/21/80 */
/*
 * Returns the number of
 * non-NULL bytes in string argument.
 */

strlen(s)
register char *s;
{
	register n;

	n = 0;
	while (*s++)
		n++;
	return(n);
}