If the pointer is a function parameter and the size of the buffer was not passed, it is not possible to calculate the maximum buffer available.

如果指针是函数参数，而且未传递缓冲区的大小，则不能计算可用的最大缓冲区。

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Based on multi-hop routing mechanism, proposes a multi-output Switching fabric and dual-pointer maximum-weight-first scheduling algorithm.

基于多一下跳路由机制，提出一种区分排队的多个可选端口输出交换结构以及双指针最大权重优先调度算法。

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