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# Data-type class definitions for GDBtk.

# Copyright 1997, 1998, 1999 Cygnus Solutions

#

# This program is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License (GPL) as published by

# the Free Software Foundation; either version 2 of the License, or (at

# your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# Generic Stack

class Stack {

  public {

    method constructor {}

    method destructor {}

    # Pop the stack. Empty string means empty stack.

    method pop {}

    # Push ARGS onto the stack.

    method push {args}

  }

  protected variable _stack

}

# Generic Queue

class Queue {

  inherit Stack

  public {

    method constructor {}

    method destructor {}

    # Pop the queue. Empty string means empty queue.

    method pop {}

  }

}