protected override int Add(BList <int> blist, int item, int preferredIndex)
{
int i = blist.FindLowerBound(item);
blist.Add(item);
return(i);
}
protected override int AddToBoth(BList <int> blist, List <int> list, int item, int preferredIndex)
{
int i = Add(blist, item, preferredIndex);
list.Insert(i, item);
return(i);
}
public void TestUpperAndLowerBound()
{
BList <int> blist = NewList();
blist.AddRange(new int[] { 0, 0, 10, 10, 20, 20, 25, 30, 30, 40, 40, 50, 50 });
int item = 25;
Assert.AreEqual(blist.FindUpperBound(item), 1 + blist.FindLowerBound(item));
item = 10;
Assert.That(blist.FindUpperBound(ref item) == 4 && item == 20);
item = 0;
Assert.That(blist.FindUpperBound(ref item) == 2 && item == 10);
item = 999;
Assert.That(blist.FindUpperBound(ref item) == blist.Count && item == 999);
bool found;
item = 5;
Assert.That(blist.FindLowerBound(ref item, out found) == 2 && item == 10 && !found);
item = 20;
Assert.That(blist.FindLowerBound(ref item, out found) == 4 && item == 20 && found);
item = 0;
Assert.That(blist.FindLowerBound(ref item, out found) == 0 && item == 0 && found);
item = 999;
Assert.That(blist.FindLowerBound(ref item, out found) == blist.Count && item == 999 && !found);
}
protected override bool RemoveFromBoth(BList <int> blist, List <int> list, int item)
{
int i = blist.IndexOf(item);
if (i == -1)
{
return(false);
}
blist.Remove(item);
list.RemoveAt(i);
return(true);
}
public BList <T> RemoveSection(int start, int count)
{
if ((uint)count > _count - (uint)start)
{
throw new ArgumentOutOfRangeException(count < 0 ? "count" : "start+count");
}
var newList = new BList <T>(this, CopySectionHelper(start, count));
// bug fix: we must RemoveRange after creating the new list, because
// the section is expected to have the same height as the original tree
// during the constructor of the new list.
RemoveRange(start, count);
return(newList);
}
public void TestRangeOperations()
{
BList <int> blist = NewList();
var primes = new int[] { 2, 3, 5, 7, 11, 13, 17, 23 };
blist.AddRange(new int[] { });
blist.AddRange(primes);
blist.AddRange(new int[] { });
ExpectList(blist, primes);
Assert.AreEqual(4, blist.AddRange(new int[] { 9, 9, 29, 9 }));
ExpectList(blist, 2, 3, 5, 7, 9, 9, 9, 11, 13, 17, 23, 29);
Assert.AreEqual(2, blist.RemoveRange(new int[] { 9, 9 }));
ExpectList(blist, 2, 3, 5, 7, 9, 11, 13, 17, 23, 29);
Assert.AreEqual(2, blist.RemoveRange(new int[] { 9, 9, 29, 9 }));
ExpectList(blist, 2, 3, 5, 7, 11, 13, 17, 23);
}
protected BList(BList <T> original, AListNode <T, T> section)
: base(original, section)
{
_compareItems = original._compareItems;
}
/// <inheritdoc cref="Clone(bool)"/>
/// <param name="items">A list of items to be cloned.</param>
public BList(BList <T> items, bool keepListChangingHandlers)
: base(items, keepListChangingHandlers)
{
_compareItems = items._compareItems;
}
public void TestStandardOperations()
{
List <int> list = new List <int>();
BList <int> blist = NewList();
// Ensure standard operations work for various list sizes
int next = 0, item;
for (int size = 5; size <= 125; size *= 5)
{
while (blist.Count < size)
{
AddToBoth(blist, list, next += 2, -1);
Assert.AreEqual(list.Count, blist.Count);
}
ExpectList(blist, list, _r.Next(2) == 0);
// Add one in the middle
int at = blist.FindLowerBound(size);
blist.Do(AListOperation.Add, size);
list.Insert(at, size);
// Remove in different ways
item = _r.Next(size * 2);
Assert.AreEqual(list.Remove(item), blist.Remove(item));
item = _r.Next(size * 2);
Assert.AreEqual(list.Remove(item), blist.Do(AListOperation.Remove, item) == -1);
// IndexOf/Contains
item = _r.Next(size * 2);
Assert.AreEqual(list.IndexOf(item), blist.IndexOf(item));
item = _r.Next(size * 2);
Assert.AreEqual(list.Contains(item), blist.Contains(item));
ExpectList(blist, list, _r.Next(2) == 0);
if (_testExceptions)
{
AssertThrows <KeyAlreadyExistsException>(() => blist.Do(AListOperation.AddOrThrow, blist.First));
}
// Replace an item with itself (with ints, this command can never
// do anything, but we'll try it in for completeness). Also,
// try no-op AddOrReplace and AddIfNotPresent operations to verify
// that they do nothing.
Assert.AreEqual(0, blist.Do(AListOperation.ReplaceIfPresent, _r.Next(size)));
Assert.AreEqual(0, blist.Do(AListOperation.AddOrReplace, blist.Last));
Assert.AreEqual(0, blist.Do(AListOperation.AddIfNotPresent, blist.First));
// Also do an AddOrReplace and AddIfNotPresent operation with an
// item that does not already exist.
blist.Do(AListOperation.AddOrReplace, next + 3); // end of the list
blist.Do(AListOperation.AddIfNotPresent, next + 1);
blist.Do(AListOperation.Add, next + 1);
list.Add(next + 1);
list.Add(next + 1);
list.Add(next + 3);
ExpectList(blist, list, _r.Next(2) == 0);
Assert.AreEqual(2, blist.RemoveAll(next + 1));
Assert.IsTrue(list.Remove(next + 1));
Assert.IsTrue(list.Remove(next + 1));
}
}
protected override BList <int> RemoveSection(BList <int> blist, int start, int subcount)
{
return(blist.RemoveSection(start, subcount));
}
