CircularListTTrimExcess Method

Sets the capacity to the actual number of elements in the list, if that number (Count) is less than the 90 percent of Capacity.

Definition

Namespace: KGySoft.Collections
Assembly: KGySoft.CoreLibraries (in KGySoft.CoreLibraries.dll) Version: 10.0.0
C#
public void 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 list 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 list to its initial state, call the Reset method. Calling the Clear and TrimExcess methods has the same effect; however, Reset method is an O(1) operation, while Clear is an O(n) operation. Trimming an empty list sets the capacity of the list to 0.

The capacity can also be set using the Capacity property.

See Also