ref: c80f22f74a4b7d08451a73258cbbf1b013da92d8
dir: /sys/src/libString/s_memappend.c/
#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;
}