/// <summary>
/// this method works for all data types; low efficiency
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="list"></param>
/// <param name="cmp"></param>
/// <returns></returns>
public static bool AreAnyDuplicates <T>(this IEnumerable <T> Tself, IComparer <T> cmp = null)
{
cmp = CHelpFunc.SetOrDefaultCmp(cmp);
var TSS = new SortedSet <T>(cmp);
foreach (var item in Tself)
{
if (TSS.Add(item) == false)
{
return(true);
}
}
return(false);
}
public static void CompareAndOrder <T, TOrder>(T T1, T T2, Func <T, TOrder> orderFunc,
out T minT, out T maxT, IComparer <TOrder> cmp = null)
{
cmp = CHelpFunc.SetOrDefaultCmp(cmp);
if (cmp.Compare(orderFunc(T1), orderFunc(T2)) <= 0)
{
minT = T1;
maxT = T2;
}
else
{
minT = T2;
maxT = T1;
}
}
public static int CmpGeneric <T, TOrder>(T T1, T T2, Func <T, TOrder> orderFunc,
IComparer <TOrder> cmp = null)
{
cmp = CHelpFunc.SetOrDefaultCmp(cmp);
return(cmp.Compare(orderFunc(T1), orderFunc(T2)));
}
