This constructor initializes a new instance of the CircularPool class.
It takes in three parameters: the type of primitive to be stored in the pool, the size of the pool, and a set of callbacks that will be used to create and destroy instances of the primitive type. The constructor initializes the pool with the specified size and creates instances of the primitive type using the provided callbacks.
ParametersprimitiveThe type of primitive to be stored in the pool.
sizeThe size of the pool.
callbacksA set of callbacks that will be used to create and destroy instances of the primitive type.