public unsafe void TestStruct()
{
MyStruct original = new MyStruct {
Primitive = 10
};
MyStruct v = original;
IntPtr p = UnsafeOperations.ReferenceToIntPtr(ref v);
Assert.AreEqual(p, UnsafeOperations.ReferenceToIntPtr(ref v));
Assert.AreEqual(p, UnsafeOperations.ReferenceToIntPtr(ref v.Decimal));
Assert.AreEqual(original, v);
Assert.AreNotEqual(IntPtr.Zero, p);
Assert.AreNotEqual(UnsafeOperations.ReferenceToIntPtr(ref v.Primitive),
UnsafeOperations.ReferenceToIntPtr(ref v.Obj));
Assert.AreNotEqual(UnsafeOperations.ReferenceToIntPtr(ref v.Primitive),
UnsafeOperations.ReferenceToIntPtr(ref v));
IntPtr pPrim = p + sizeof(decimal);
Assert.AreEqual(pPrim, UnsafeOperations.ReferenceToIntPtr(ref v.Primitive));
long *pv = (long *)pPrim.ToPointer();
Assert.AreEqual(10, v.Primitive);
Assert.AreEqual(10, *pv);
Assert.AreEqual(0m, v.Decimal);
Assert.AreEqual(null, v.Obj);
*pv += 20;
Assert.AreEqual(30, v.Primitive);
Assert.AreEqual(30, *pv);
Assert.AreEqual(0m, v.Decimal);
Assert.AreEqual(null, v.Obj);
v.Primitive = 50;
Assert.AreEqual(50, v.Primitive);
Assert.AreEqual(50, *pv);
Assert.AreEqual(0m, v.Decimal);
Assert.AreEqual(null, v.Obj);
}
public unsafe void TestInt32()
{
int v = 10;
IntPtr p = UnsafeOperations.ReferenceToIntPtr(ref v);
Assert.AreEqual(p, UnsafeOperations.ReferenceToIntPtr(ref v));
Assert.AreEqual(10, v);
Assert.AreNotEqual(IntPtr.Zero, p);
int *pv = (int *)p.ToPointer();
Assert.AreEqual(10, *pv);
Assert.AreEqual(10, v);
*pv = 20;
Assert.AreEqual(20, *pv);
Assert.AreEqual(20, v);
v = 30;
Assert.AreEqual(30, *pv);
Assert.AreEqual(30, v);
}
public unsafe void TestInt64()
{
const long start = (long)uint.MaxValue + 50;
long v = start;
IntPtr p = UnsafeOperations.ReferenceToIntPtr(ref v);
Assert.AreEqual(p, UnsafeOperations.ReferenceToIntPtr(ref v));
Assert.AreEqual(start, v);
Assert.AreNotEqual(IntPtr.Zero, p);
long *pv = (long *)p.ToPointer();
Assert.AreEqual(start, *pv);
Assert.AreEqual(start, v);
*pv += 20;
Assert.AreEqual(start + 20, *pv);
Assert.AreEqual(start + 20, v);
v = start - 5;
Assert.AreEqual(start - 5, *pv);
Assert.AreEqual(start - 5, v);
}
