public void PassingByValue_ValueTypeParameter_ReassigningTheParameter_ShouldNotChangeCallerValue()
{
var valueType = new IntHolderStruct(5);
F2(valueType);
Assert.AreEqual(5, valueType.Number);
}
public void PassingByValue_ValueTypeParameter_ChangingTheValueInsideFunction_ShouldNotChangeCallerValue()
{
var valueType = new IntHolderStruct(5);
F1(valueType);
Assert.AreEqual(5, valueType.Number);
}
public void PassingAsOutput_ValueTypeParameter_ChangingTheValueInsideFunction_ShouldChangeCallerValue()
{
var valueType = new IntHolderStruct(5);
F9(out valueType);
Assert.AreEqual(99, valueType.Number);
}
public void PassingByReference_ValueTypeParameter_ReassigningTheParameter_ShouldChangeCallerValue()
{
var valueType = new IntHolderStruct(5);
F6(ref valueType);
Assert.AreEqual(66, valueType.Number);
}
public void ValueTypes_AssigningOneVariableToAnother_DataIsCopied()
{
var first = new IntHolderStruct(1);
var second = first;
first.Number = 2;
Assert.AreEqual(1, second.Number);
}
public void DoCount(TimeSpan overhead)
{
string line = null;
Hashtable wordTable = new Hashtable();
DateTime startTime = DateTime.Now;
int wordCount = 0;
while ((line = stream.ReadLine()) != null)
{
foreach (string word in regexSplit.Split(line.ToLower()))
{
wordCount++;
//Console.WriteLine("Word: {0}", word);
object value = wordTable[word];
if (value == null)
{
value = new IntHolderStruct(1);
wordTable[word] = value;
}
else
{
((IIncrement)value).Increment();
}
}
}
stream.Close();
f.Close();
DateTime endTime = DateTime.Now;
ArrayList words = new ArrayList();
foreach (string word in wordTable.Keys)
{
words.Add(word);
}
words.Sort();
//foreach (string word in words)
//{
//Console.WriteLine("{0} = {1}", word, wordTable[word]);
//}
Console.WriteLine("Interface: Counted {0} words ({1} unique) in {2}, delta = {3}", wordCount, words.Count, endTime - startTime, (endTime - startTime) - overhead);
}
public void PassingReferenceTypeByValue_AndValueTypeByReference_IsNotTheSame()
{
var firstValueType = new IntHolderStruct(5);
var secondValueType = firstValueType;
secondValueType.Number = 6;
F101(ref firstValueType);
Assert.AreEqual(101101, firstValueType.Number);
Assert.AreEqual(6, secondValueType.Number);
var firstReferenceType = new IntHolderClass(5);
var secondReferenceType = firstReferenceType;
secondReferenceType.Number = 6;
F102(firstReferenceType);
Assert.AreEqual(6, firstReferenceType.Number);
Assert.AreEqual(6, secondReferenceType.Number);
Assert.AreEqual(firstReferenceType, secondReferenceType);
}
private void F2(IntHolderStruct valueType)
{
valueType = new IntHolderStruct(22);
}
private void F1(IntHolderStruct valueType)
{
valueType.Number = 11;
}
private void F101(ref IntHolderStruct valueType)
{
valueType = new IntHolderStruct(101101);
}
private void F14(params IntHolderStruct[] valueTypes)
{
valueTypes.ToList().ForEach(i => i = new IntHolderStruct(1414));
}
private void F10(out IntHolderStruct valueType)
{
valueType = new IntHolderStruct(1010);
}
private void F9(out IntHolderStruct valueType)
{
valueType.Number = 99;
}
private void F6(ref IntHolderStruct valueType)
{
valueType = new IntHolderStruct(66);
}
private void F5(ref IntHolderStruct valueType)
{
valueType.Number = 55;
}
