ListTSortIComparerT

ListTSortIComparerT is a generic type construct used in programming languages that support generic collections and comparator-based sorting. It denotes a list of elements of type T that can be sorted using an IComparer<T> instance. The IComparer<T> interface defines a Compare method that returns a negative, zero, or positive value to indicate the relative order of two T values. When sorting, the list reorders its elements based on the results produced by the comparer.

Usage typically involves supplying a concrete IComparer<T> implementation or a comparator delegate to the Sort operation on the list, for example by calling sort with a comparer. This approach enables custom orderings beyond the natural or default ordering of T, such as sorting by a particular field or a calculated key.

Key characteristics include flexibility and abstraction: the sorting logic is decoupled from the element type, allowing the same list type to be sorted in different ways without modifying the element type itself. The exact sorting algorithm used is determined by the underlying implementation; common considerations include performance characteristics like time complexity, and whether the sort is stable.

In practice, ListTSortIComparerT is often referenced in documentation or generated code as a way to describe a list that can be sorted with a user-supplied comparer. Languages that expose similar capabilities typically provide a built-in List<T>.Sort method or an equivalent interface-based sorting mechanism.

See also: IComparer<T>, List<T>, sorting algorithms, comparator-based sorting.