public T this[long index]
{
get
{
if (_array == null)
{
throw new InvalidOperationException("Array is null");
}
if (index < 0 || index >= _range.Count)
{
throw new ArgumentOutOfRangeException();
}
long[] dimIndices = new long[_arrayInfo.Rank];
_arrayInfo.CalcDimIndices(_range.Index + index, dimIndices);
return((T)_array.GetValue(dimIndices));
}
set
{
if (_array == null)
{
throw new InvalidOperationException("Array is null");
}
if (index < 0 || index >= _range.Count)
{
throw new ArgumentOutOfRangeException();
}
long[] dimIndices = new long[_arrayInfo.Rank];
_arrayInfo.CalcDimIndices(_range.Index + index, dimIndices);
_array.SetValue(value, dimIndices);
}
}
/// <summary>
/// Adds value to the value of the flat delta index.
/// If the value of property Module false and indices out of range then throwing an exception.
/// Otherwise, the addition is performed by module the length of the array and exception is not throw.
/// </summary>
/// <param name="delta"></param>
/// <returns></returns>
private long AddFlatIndexCore(long delta)
{
long carry = 0;
bool checkOut = _checkOut;
if (!checkOut && (delta > _arrayInfo.Length || delta < -_arrayInfo.Length))
{
delta %= _arrayInfo.Length;
}
else if (_arrayInfo.Length == 0)
{
throw new InvalidOperationException("Operatiois out of range");
}
if (delta > 0 && _arrayInfo.Length - _flatIndex < delta + 1)
{
if (!checkOut)
{
carry = delta - (_arrayInfo.Length - _flatIndex - 1);
}
else
{
throw new InvalidOperationException("Operatiois out of range");
}
}
else if (delta < 0 && _flatIndex < -delta)
{
if (!checkOut)
{
carry = -delta - _flatIndex;
}
else
{
throw new InvalidOperationException("Operatiois out of range");
}
}
_flatIndex +=
delta > 0 && _arrayInfo.Length - _flatIndex < delta + 1 ? delta - _arrayInfo.Length :
delta < 0 && _flatIndex < -delta ? delta + _arrayInfo.Length :
delta;
if (delta == 1)
{
_arrayInfo.IncDimIndices(_zeroBased, _dimIndices);
}
else if (delta == -1)
{
_arrayInfo.DecDimIndices(_zeroBased, _dimIndices);
}
else
{
_arrayInfo.CalcDimIndices(_flatIndex, _zeroBased, _dimIndices);
}
return(_carry = carry);
}
