分配接口从堆中分配给定数量的存储器，但具有不同参数和语义。

The allocation interfaces allocate a given amount of storage from the heap, but have different parameters and semantics.

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该文提出了一种对存储器模型进行统一而直观的描述和划分方法，更清晰地体现了模型间的语义差别，并依此分析了各个模型特点和实现。

This paper is written to describe issues related to memory models in a simple and uniform way. The characteristics and the implementation of each model, and the differences among them are discussed.

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