/// <summary>
/// returns and clears element a[top+offset] of the attribute stack
/// </summary>
/// <param name="offset">offset from top of stack, must be less or equal 0</param>
/// <returns>a copy of the element a[top+offset] of the attribute stack</returns>
public MultiTypeStruct PeekClear(Int32 offset)
{
Debug.Assert(offset <= 0 && offset >= -TopIndex, $"Argument of {nameof(PeekClear)} must be <=0");
MultiTypeStruct result = a[TopIndex + offset];
a[TopIndex + offset] = MultiTypeStructDefault; // clear all references contained in the element
return(result);
}
public StackOfMultiTypeElements(Int32 initialCapacity)
{
if (initialCapacity < 0)
{
throw new ArgumentOutOfRangeException(nameof(initialCapacity));
}
a = new MultiTypeStruct[initialCapacity];
TopIndex = -1; // empty stack, no top element
}