A pointer must be the same size as a native pointer on the current platform.

指针的大小必须与当前平台上的本机指针的大小相同。

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Systems with native 32-bit types often kept both long and pointer sizes 32 bit, but introduced a new type, "long long," which was 64 bit.

本身支持 32 位类型的系统通常都保留 32 位的 long 和指针，不过这些系统引入了一个新类型 “long long”，它是 64 位的。

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Systems with native 64-bit types often went to a model called "LP64," where the long and pointer sizes were both 64 bit.

本身支持64位类型的系统通常都采用一种称为“LP64”的模型，其中long类型和指针大小都是64位的。

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