public ReadOnlySpan(T[] array, int start, int length)
{
Contract.Requires(array != null);
Contract.RequiresInInclusiveRange(start, length, (uint)array.Length);
if (start < array.Length)
{
Object = array;
Offset = UnsafeUtilities.GetElementAddress <T>((UIntPtr)SpanHelpers <T> .OffsetToArrayData, (UIntPtr)start);
Length = length;
}
else
{
Object = null;
Offset = UIntPtr.Zero;
Length = 0;
}
}
internal Span(T[] array, int start)
{
Contract.Requires(array != null);
Contract.Requires(default(T) != null || array.GetType() == typeof(T[]));
Contract.RequiresInInclusiveRange(start, (uint)array.Length);
if (start < array.Length)
{
Object = array;
Offset = UnsafeUtilities.GetElementAddress <T>((UIntPtr)SpanHelpers <T> .OffsetToArrayData, (UIntPtr)start);
Length = array.Length - start;
}
else
{
Object = null;
Offset = UIntPtr.Zero;
Length = 0;
}
}
public Span <T> Slice(uint start, uint length)
{
Contract.RequiresInInclusiveRange(start, length, (uint)Length);
return(new Span <T>(
Object, UnsafeUtilities.GetElementAddress <T>(Offset, (UIntPtr)start), (int)length));
}
public ReadOnlySpan <T> Slice(uint start)
{
Contract.RequiresInInclusiveRange(start, (uint)Length);
return(new ReadOnlySpan <T>(Object, UnsafeUtilities.GetElementAddress <T>(Offset, (UIntPtr)start), Length - (int)start));
}