Does ordinary copy board need power consumption
The information comes from:Internet Posted on:2021-06-08
Comic lovers have heard and used the copy board, but do you know the power consumption of the copy board
As for the power consumption of the copy board, the answer is that it needs power consumption. When allocating memory, you need to apply to the system. The system will query the remaining continuous memory, find the appropriate memory block, and then write a used identification bit to the block. Then return the memory address allocated to it.
When the memory is deleted, it is a reverse process of allocation. If you want to apply to the system, the system will reclaim the memory and return it. This time is very short, as short as tens or hundreds of subtle, but there must be time consumption. In C + +, there are two ways of memory allocation, new / delete and malloc / free. New / delete is more efficient than malloc / free. Because new and delete are C + + operators and malloc / free are C + + functions. The former omits the operation related to function call.
So in C + + programming, we should try to use new / delete to allocate / delete dynamic memory.
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