Stack<T>.TrimExcess Method
Definition
Important
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Overloads
TrimExcess() |
Sets the capacity to the actual number of elements in the Stack<T>, if that number is less than 90 percent of current capacity. |
TrimExcess(Int32) |
Sets the capacity of a Stack<T> object to a specified number of entries. |
TrimExcess()
- Source:
- Stack.cs
- Source:
- Stack.cs
- Source:
- Stack.cs
Sets the capacity to the actual number of elements in the Stack<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 Stack<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 Stack<T> to its initial state, call the Clear method before calling TrimExcess method. Trimming an empty Stack<T> sets the capacity of the Stack<T> to the default capacity.
See also
Applies to
TrimExcess(Int32)
- Source:
- Stack.cs
Sets the capacity of a Stack<T> object to a specified number of entries.
public:
void TrimExcess(int capacity);
public void TrimExcess (int capacity);
member this.TrimExcess : int -> unit
Public Sub TrimExcess (capacity As Integer)
Parameters
- capacity
- Int32
The new capacity.
Exceptions
Passed capacity is lower than 0 or entries count.
Applies to
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