Queue<T>.TrimExcess Method
Definition
Important
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Overloads
TrimExcess() |
Sets the capacity to the actual number of elements in the Queue<T>, if that number is less than 90 percent of current capacity. |
TrimExcess(Int32) |
TrimExcess()
- Source:
- Queue.cs
- Source:
- Queue.cs
- Source:
- Queue.cs
Sets the capacity to the actual number of elements in the Queue<T>, if that number is less than 90 percent of current capacity.
public:
void TrimExcess();
public void TrimExcess ();
member this.TrimExcess : unit -> unit
Public Sub TrimExcess ()
Remarks
This method can be used to minimize a collection's memory overhead if no new elements will be added to the collection. The cost of reallocating and copying a large Queue<T> can be considerable, however, so the TrimExcess method does nothing if the list is at more than 90 percent of capacity. This avoids incurring a large reallocation cost for a relatively small gain.
This method is an O(n
) operation, where n
is Count.
To reset a Queue<T> to its initial state, call the Clear method before calling TrimExcess method. Trimming an empty Queue<T> sets the capacity of the Queue<T> to the default capacity.
See also
Applies to
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