摘要:
memmove和memcpy。src和dst指向的区域重叠,memmove仍可以正确处理void *memmove(void *dst, const void *src, size_t count){ char *tmp, *s; if (dst <= stc) { tmp = (char *)dst; s = (char *)src; while (count --) { *tmp++ = *s++; } } else { tmp = (char *)dst + count; s = (char *)src + count; while (count--) { *--tmp = *-- 阅读全文