You never have to worry about double-freeing memory or object lifetimes.
您永远不必担心内存的双重释放或者对象的生命周期。
A negative number indicates that the process is freeing memory allocated by another process.
一个负数，表示进程正在释放由另一个进程分配的内存。
As you can see, in this allocator, freeing memory is done in constant time, using a very simple mechanism.
如您所见，在这个分配程序中，内存的释放使用了一个非常简单的机制，在固定时间内完成内存释放。
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