memcpy.c

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· C语言 代码 · 共 18 行

/*	@(#)memcpy.c	1.1	*/
/*LINTLIBRARY*/
/*
 * Copy s2 to s1, always copy n bytes.
 * Return s1
 */
char *
memcpy(s1, s2, n)
register char *s1, *s2;
register int n;
{
	register char *os1 = s1;

	while (--n >= 0)
		*s1++ = *s2++;
	return (os1);
}