//  /*-------------------------------------------------------------------*\
//  |   Concrete Template : Stack_Put_To_1
//  \*-------------------------------------------------------------------*/

#ifndef CT_STACK_PUT_TO_1
#define CT_STACK_PUT_TO_1 1

///------------------------------------------------------------------------
/// Global Context --------------------------------------------------------
///------------------------------------------------------------------------

#include "AT/General/Put_To.h"
/*!
    #include "AT/Stack/Kernel.h"
!*/

///------------------------------------------------------------------------
/// Interface -------------------------------------------------------------
///------------------------------------------------------------------------

concrete_template <
	concrete_instance class Item,
	/*!
	    implements
		abstract_instance General_Put_To <Item>
	!*/
	concrete_instance class Stack_Base
	/*!
	    implements
		abstract_instance Stack_Kernel <Item>
	!*/
    >
class Stack_Put_To_1 :
    extends
	concrete_instance Stack_Base,
    implements
	abstract_instance General_Put_To <Stack_Base>
{
public:
    
    procedure_body Put_To (
	    alters Character_OStream& outs
	)
    {
	object catalyst Stack_Put_To_1 temp;

	// Open scope of string
    
	outs.Open_Scope ("<");

	// Put contents of self
    
	while (self.Length () > 0)
	/*!
	    alters self, temp
	    maintains
	        reverse (temp) * self = reverse (#temp) * #self  and
		[items in temp have been output already])
	    decreases
		|self|
	!*/
	{
	    object catalyst Item x;

	    self.Pop (x);
	    outs.New_Line ();
	    outs << x;
	    temp.Push (x);
	}

	// Close scope of string
    
	outs.Close_Scope (">");

	// Restore self

	while (temp.Length () > 0)
	/*!
	    alters self, temp
	    maintains
	        reverse (temp) * self = reverse (#temp) * #self
	    decreases
		|temp|
	!*/
	{
	    object catalyst Item x;

	    temp.Pop (x);
	    self.Push (x);
	}
    }

};

#endif // CT_STACK_PUT_TO_1