ENTERASYS A4H124-4FX P0973JN

Description

ENTERASYS A4H124-4FX P0973JN

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2. .If there is any inconsistency between the product model and the picture on display, the model shall prevail. Contact us for the specific product picture, and we will arrange to take photos in the warehouse for confirmation
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·Can a parameter of A4H124-4FX P0973JN be both const and volatile? Sure, for example, a read-only status register. It is volatile because it may be unexpectedly altered. It is const because the program should not attempt to modify it.

·The original meaning of A4H124-4FX P0973JN is “mutable”. Due to the faster speed of accessing registers than RAM, compilers generally optimize to reduce access to external RAM, but may read dirty data. When the value of a variable declared with volatile is requested, the system always retrieves data from the memory where it is located, even if the previous instruction has just read data from there. And the read data is immediately saved.

The main difference between sizeof () and strlen() is that:

·Sizeof () is an operator, while strlen() is a function.

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