Ds\Stack::allocate
(PECL ds >= 1.0.0)
Ds\Stack::allocate — Allocates enough memory for a required capacity
說明
   public Ds\Stack::allocate(int 
  $capacity): voidEnsures that enough memory is allocated for a required capacity. This removes the need to reallocate the internal as values are added.
參數
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capacity
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     The number of values for which capacity should be allocated. 注意: Capacity will stay the same if this value is less than or equal to the current capacity. 
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