在程式最前面定義：

#definemyprintfprintf

後面的myprintf就相當於printf了。

void *my_memmove(void *dst,const void *src,int count)

{

char *ret;

char *dst_t;

char *src_t;

ret = (char *)dst;

if ((unsigned char*)dst

(unsigned char *)dst >= ((unsigned char *)src + count))

{

dst_t = (char *)dst;

src_t = (char *)src;

while (count--)

{

*dst_t++ = *src_t++;

}

}

else

{

dst_t = (char *)dst + count - 1;

src_t = (char *)src + count - 1;

while (count--)

{

*dst_t-- = *src_t--;

}

}

return(ret);

}