public void Write(int length, int start, int index)
{
TestStructs.Foo[] a = TestStructs.Foo.CreateArray(length);
Span <TestStructs.Foo> span = new Span <TestStructs.Foo>(a, start);
span[index] = new TestStructs.Foo(666, 666);
Assert.Equal(new TestStructs.Foo(666, 666), a[start + index]);
}
public void Read(int length, int start, int index)
{
TestStructs.Foo[] a = TestStructs.Foo.CreateArray(length);
Span <TestStructs.Foo> span = new Span <TestStructs.Foo>(a, start);
TestStructs.Foo element = span[index];
Assert.Equal(a[start + index], element);
}
internal static bool ElementsAreEqual(TestStructs.Foo[] array, byte[] rawArray, int index)
{
fixed(TestStructs.Foo *pArray = array)
fixed(byte *pRaw = rawArray)
{
TestStructs.Foo *pCasted = (TestStructs.Foo *)pRaw;
TestStructs.Foo val1 = pArray[index];
TestStructs.Foo val2 = pCasted[index];
return(val1.Equals(val2));
}
}
public void GenericToOwnType(int count)
{
TestStructs.Foo[] source = TestStructs.Foo.CreateArray(count + 2);
TestStructs.Foo[] dest = new TestStructs.Foo[count + 5];
var apSource = new Span <TestStructs.Foo>(source, 1, source.Length - 1);
var apDest = new Span <TestStructs.Foo>(dest, 1, dest.Length - 1);
apSource.Slice(0, count - 1).CopyTo(apDest);
AssertNotDefault(source, 1);
AssertNotDefault(dest, 1);
Assert.NotEqual(source[0], dest[0]);
Assert.Equal(source[1], dest[1]);
Assert.Equal(source[2], dest[2]);
Assert.Equal(source[count - 1], dest[count - 1]);
Assert.NotEqual(source[count], dest[count]);
}
public void BytesToGeneric(int count)
{
int srcCount = count * sizeof(TestStructs.Foo);
byte[] source = CreateTestBytes(srcCount);
var dest = new TestStructs.Foo[count + 2];
var apSource = new Span <byte>(source);
var apDest = new Span <TestStructs.Foo>(dest);
apSource.Slice(0, count * sizeof(TestStructs.Foo)).CopyTo(apDest.AsBytes());
AssertNotDefault(source, sizeof(TestStructs.Foo) + 1);
AssertNotDefault(dest, 1);
Assert.True((bool)ElementsAreEqual(dest, source, 0));
Assert.True((bool)ElementsAreEqual(dest, source, 1));
Assert.True((bool)ElementsAreEqual(dest, source, count - 1));
Assert.False((bool)ElementsAreEqual(dest, source, count));
}
