#include <u.h>#include <libc.h>#include "String.h" /* append a char array ( of up to n characters) to a String */String *s_memappend(String *to, char *from, int n){	char *e; 	if (to == 0)		to = s_new();	if (from == 0)		return to;	for(e = from + n; from < e; from++)		s_putc(to, *from);	s_terminate(to);	return to;}