/// <summary>
/// Removes top stack item and puts it in alt-stack. Return value indicates success.
/// </summary>
/// <param name="opData">Data to use</param>
/// <param name="error">Error message (null if sucessful, otherwise will contain information about the failure)</param>
/// <returns>True if operation was successful, false if otherwise</returns>
public override bool Run(IOpData opData, out string error)
{
if (opData.ItemCount < 1)
{
error = "There was not enough items left in the stack to copy to alt-stack.";
return(false);
}
opData.AltPush(opData.Pop());
error = null;
return(true);
}
/// <summary>
/// Removes top stack item and puts it in alt-stack. Return value indicates success.
/// </summary>
/// <param name="opData">Data to use</param>
/// <param name="error">Error message (null if sucessful, otherwise will contain information about the failure)</param>
/// <returns>True if operation was successful, false if otherwise</returns>
public override bool Run(IOpData opData, out string error)
{
if (opData.ItemCount < 1)
{
error = Err.OpNotEnoughItems;
return(false);
}
opData.AltPush(opData.Pop());
error = null;
return(true);
}