/// <summary>
/// Creates a new span over the portion of the target array beginning
/// at 'start' index and ending at 'end' index (exclusive).
/// </summary>
/// <param name="array">The target array.</param>
/// <param name="start">The index at which to begin the span.</param>
/// <param name="length">The number of items in the span.</param>
public ReadOnlySpan(T[] array, int start, int length)
{
if ((uint)start >= (uint)array.Length || (uint)length > (uint)(array.Length - start))
{
ThrowHelper.ThrowArgumentOutOfRangeException();
}
JitHelpers.SetByRef(out _rawPointer, ref JitHelpers.AddByRef(ref JitHelpers.GetArrayData(array), start));
_length = length;
}
/// <summary>
/// An internal helper for creating spans. Not for public use.
/// </summary>
private ReadOnlySpan(ref T ptr, int length)
{
JitHelpers.SetByRef(out _rawPointer, ref ptr);
_length = length;
}
/// <summary>
/// Creates a new span over the entirety of the target array.
/// </summary>
/// <param name="array">The target array.</param>
public ReadOnlySpan(T[] array)
{
JitHelpers.SetByRef(out _rawPointer, ref JitHelpers.GetArrayData(array));
_length = array.Length;
}
