public unsafe void EqualityTest1()
{
DateTime *sample = stackalloc DateTime[4];
int checksum = 0;
int address1 = (int)sample;
Console.WriteLine("Original Address: {0:X}", address1);
checksum += address1;
IntPtr address2 = new IntPtr(sample);
Console.WriteLine("IntPtr Address: {0:X}", address2.ToInt32());
checksum += address2.ToInt32();
DateTimePointer address3 = new DateTimePointer(address2);
Console.WriteLine("DateTimePointer Address (from IntPtr): {0:X}", address3.ToInt32());
checksum += address3.ToInt32();
DateTimePointer address4 = new DateTimePointer(address1);
Console.WriteLine("DateTimePointer Address (from Int32): {0:X}", address4.ToInt32());
checksum += address4.ToInt32();
int checksumDigest = checksum / 4;
Assert.AreEqual(checksumDigest, address1);
Assert.AreEqual(checksumDigest, address2.ToInt32());
Assert.AreEqual(checksumDigest, address3.ToInt32());
Assert.AreEqual(checksumDigest, address4.ToInt32());
}
public unsafe void AddressTest1()
{
DateTime * sample = stackalloc DateTime[4];
DateTimePointer a = new DateTimePointer(sample);
DateTimePointer b = (a + 1);
Console.WriteLine("Address offset: {0}", b.ToInt32() - a.ToInt32());
Assert.AreEqual(sizeof(DateTime), b.ToInt32() - a.ToInt32());
Assert.False(Object.ReferenceEquals(a, b));
// xPlatform's typed pointers are value type.
DateTimePointer c = new DateTimePointer(sample + 1);
DateTimePointer d = (++c);
Console.WriteLine("Address offset: {0}", d.ToInt32() - c.ToInt32());
Assert.AreEqual(0, d.ToInt32() - c.ToInt32());
Assert.False(Object.ReferenceEquals(c, d));
}
public unsafe void StackallocTest3()
{
const int bufferSize = 4;
DateTime * sample = stackalloc DateTime[bufferSize];
DateTimePointer pointer = new DateTimePointer(sample);
DateTime[] results = new DateTime[bufferSize];
for (int i = 0; i < bufferSize; i++)
{
results[i] = *(sample + i) = GenerateRandomDateTime();
}
// Pointer conversion test
for (int i = 0; i < bufferSize; i++)
{
object x = results[i];
object y = *(DateTime *)(pointer + i);
Console.WriteLine("[{0}] <Left: {1}> {2} <Right: {3}>", i, x, x.Equals(y) ? "==" : "<>", y);
Assert.AreEqual(x, y);
}
}
public unsafe void StackallocTest4()
{
const int bufferSize = 4;
DateTime * sample = stackalloc DateTime[bufferSize];
DateTimePointer pointer = new DateTimePointer(sample);
DateTime[] results = new DateTime[bufferSize];
// SetData method
for (int i = 0; i < bufferSize; i++)
{
pointer.SetData(results[i] = GenerateRandomDateTime(), i);
}
// GetData method
for (int i = 0; i < bufferSize; i++)
{
object x = results[i];
object y = pointer.GetData(i);
Console.WriteLine("[{0}] <Left: {1}> {2} <Right: {3}>", i, x, x.Equals(y) ? "==" : "<>", y);
Assert.AreEqual(x, y);
}
}
public unsafe void StackallocTest5()
{
const int bufferSize = 4;
DateTime * sample = stackalloc DateTime[bufferSize];
DateTimePointer pointer = new DateTimePointer(sample);
DateTime[] results = new DateTime[bufferSize];
// Indexer based memory writing
for (int i = 0; i < bufferSize; i++)
{
results[i] = pointer[i] = GenerateRandomDateTime();
}
// Indexer based memory navigation
for (int i = 0; i < bufferSize; i++)
{
object x = results[i];
object y = pointer[i];
Console.WriteLine("[{0}] <Left: {1}> {2} <Right: {3}>", i, x, x.Equals(y) ? "==" : "<>", y);
Assert.AreEqual(x, y);
}
}