static List <T> Find <T>(FunctionPointerGeneric <T> func, IEnumerable <T> source)
{
List <T> resultList = new List <T>();
//IEnumerator<T> _iterator= source.GetEnumerator();
// try
// {
// while (_iterator.MoveNext())
// {
// T item = _iterator.Current;
// if (func(item))
// {
// resultList.Add(item);
// }
// }
// }
// finally
// {
// _iterator.Dispose();
// }
foreach (T item in source)
{
if (func.Invoke(item))
{
resultList.Add(item);
}
}
return(resultList);
}
static List <T> Find <T> (FunctionPointerGeneric <T> func, T[] source)
{
List <T> resultList = new List <T>();
for (int i = 0; i < source.Length; i++)
{
if (func.Invoke(source[i]))
{
resultList.Add(source[i]);
}
}
return(resultList);
}
static void Main()
{
string[] names = { "Philips", "PIC", "BLR", "BSDK", "CHN" };
FindString("P", names);
FindString("B", names);
FindString("p", names);
FindString("b", names);
FunctionPointer _pointer1 = new FunctionPointer(CheckStringLength_3);
FindString(_pointer1, names);
FunctionPointer _pointer2 = new FunctionPointer(CheckStringLength_3);
FindString(_pointer2, names);
int[] numbers = { 1, 2, 3, 4, 56, 7 };
FunctionPointerGeneric <int> _pointer3 = new FunctionPointerGeneric <int>(CheckNumberEvenOrOdd);
Find <int>(_pointer3, numbers);
FunctionPointerGeneric <string> _pointer4 = new FunctionPointerGeneric <string>(CheckStringStartsWithP);
Find <string>(_pointer4, names);
List <string> nameList = names.ToList();
List <string> _result = Find <string>(_pointer4, nameList);
for (int i = 0; i < _result.Count; i++)
{
Console.WriteLine(_result[i]);
}
foreach (string item in _result)
{
Console.WriteLine(_result[i]);
}
}
