The spec does not mandate buffer limits for tee(). And to be fair, the spec allows implementations to implement the actual internal mechanisms for tee()and other APIs in any way they see fit so long as the observable normative requirements of the specification are met. But if an implementation chooses to implement tee() in the specific way described by the streams specification, then tee() will come with a built-in memory management issue that is difficult to work around.
void *data = &h[1];，详情可参考im钱包官方下载
What about DECSTBM and DECLRMM?DECSTBM and DECLRMM allow you to set “margins” in the terminal and then “scroll” within those margins. DECSTBM is for vertical margins and DECLRMM is for horizontal ones.，推荐阅读Line官方版本下载获取更多信息
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