public unsafe void EqualityTest1() { sbyte *sample = stackalloc sbyte[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(); SBytePointer address3 = new SBytePointer(address2); Console.WriteLine("SBytePointer Address (from IntPtr): {0:X}", address3.ToInt32()); checksum += address3.ToInt32(); SBytePointer address4 = new SBytePointer(address1); Console.WriteLine("SBytePointer 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() { sbyte * sample = stackalloc sbyte[4]; SBytePointer a = new SBytePointer(sample); SBytePointer b = (a + 1); Console.WriteLine("Address offset: {0}", b.ToInt32() - a.ToInt32()); Assert.AreEqual(sizeof(sbyte), b.ToInt32() - a.ToInt32()); Assert.False(Object.ReferenceEquals(a, b)); // xPlatform's typed pointers are value type. SBytePointer c = new SBytePointer(sample + 1); SBytePointer 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; sbyte * sample = stackalloc sbyte[bufferSize]; SBytePointer pointer = new SBytePointer(sample); sbyte[] results = new sbyte[bufferSize]; for (int i = 0; i < bufferSize; i++) { results[i] = *(sample + i) = GenerateRandomNumber(); } // Pointer conversion test for (int i = 0; i < bufferSize; i++) { object x = results[i]; object y = *(sbyte *)(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; sbyte * sample = stackalloc sbyte[bufferSize]; SBytePointer pointer = new SBytePointer(sample); sbyte[] results = new sbyte[bufferSize]; // SetData method for (int i = 0; i < bufferSize; i++) { pointer.SetData(results[i] = GenerateRandomNumber(), 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; sbyte * sample = stackalloc sbyte[bufferSize]; SBytePointer pointer = new SBytePointer(sample); sbyte[] results = new sbyte[bufferSize]; // Indexer based memory writing for (int i = 0; i < bufferSize; i++) { results[i] = pointer[i] = GenerateRandomNumber(); } // 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); } }
public void _memccpyTest() { GlobalHeapAnsiString string1 = new GlobalHeapAnsiString("The quick brown dog jumps over the lazy fox"); GlobalHeapAnsiString buffer = new GlobalHeapAnsiString(61); SBytePointer pdest = new SBytePointer(); Console.Write("Function: _memccpy 60 characters or to character 's'\n"); Console.Write("Source: {0}\n", string1.ToString()); pdest = msvcrt._memccpy(buffer, string1, 's', 60u); pdest.SetData(0); Console.Write("Result: {0}\n", buffer.ToString()); Console.Write("Length: {0} characters\n", msvcrt.strlen(buffer.Address)); Assert.AreEqual("The quick brown dog jumps over the lazy fox", string1.ToString()); Assert.AreEqual("The quick brown dog jumps", buffer.ToString()); Assert.AreEqual(25u, (uint)msvcrt.strlen(buffer.Address)); string1.Dispose(); buffer.Dispose(); pdest = null; }