If a function needs to maintain the state of some data over successive calls, such as a working buffer or a pointer, the caller should provide this data.
如果函数需要在一系列调用期间维持某些数据的状态，比如工作缓存或指针，那么调用者应该提供此数据。
Working in conjunction with our stack, we'll have a pointer that identifies our current position in the stack.
与堆栈在一起的还有一个指针，指示我们在堆栈中的当前位置。
Messages on the Hold Queues may be a pointer that some of the runtime components of Process Server are not available or are not working correctly.
保留队列上的消息可以作为ProcessServer的某些运行时组件不可用或无法正常工作的指示器。
In the working example, move the slider pointer at the top of the display a bit to the right (that is, grab it with your mouse pointer, drag it over, then release the first button).
在实际例子中，将显示器顶部的滑块指针稍微向右移动一点(就是将鼠标指针放在它上面，按下鼠标左键拖动，然后释放鼠标左键)。
Model indexes contain a pointer to the model that created them, and this prevents confusion when working with more than one model.
模型索引包含一个指向创建它们的模型的指针，这样可以避免使用多个模型时引起混淆。
Model indexes contain a pointer to the model that created them, and this prevents confusion when working with more than one model.
模型索引包含一个指向创建它们的模型的指针，这样可以避免使用多个模型时引起混淆。
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