C# compare function code example
Example 1: c# string.compare
public static int Compare (string? strA, string? strB);
//Less than zero strA precedes strB in the sort order
//zero strA occurs in the same position as strB in the sort order
//Greater than zero strA follows strB in the sort order
Example 2: c# comparer
public abstract class Comparer<T> : System.Collections.Generic.IComparer<T>, System.Collections.IComparer