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-------------------------------------------------------------------------------
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-- <STRONG>Copyright (c) 2001, 2002 by Thomas Wolf.</STRONG>
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-- This piece of software is free software; you can redistribute it and/or
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-- modify it under the terms of the GNU General Public License as published
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-- by the Free Software Foundation; either version 2, or (at your option)
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-- any later version. This unit is distributed in the hope that it will be
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-- useful, but <EM>without any warranty</EM>; without even the implied
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-- warranty of <EM>merchantability or fitness for a particular purpose.</EM>
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-- See the GNU General Public License for more details. You should have
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-- received a copy of the GNU General Public License with this distribution,
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-- see file "<A HREF="GPL.txt">GPL.txt</A>". If not, write to the Free
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-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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-- As a special exception from the GPL, if other files instantiate generics
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-- from this unit, or you link this unit with other files to produce an
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-- executable, this unit does not by itself cause the resulting executable
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-- to be covered by the GPL. This exception does not however invalidate any
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-- other reasons why the executable file might be covered by the GPL.
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-- Author:</STRONG><DD>
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-- <ADDRESS><A HREF="mailto:twolf@acm.org">twolf@acm.org</A></ADDRESS></DL>
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-- Purpose:</STRONG><DD>
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-- Root package for GAL's "raw ADT" subsystem. The "raw ADTs" are used in the
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-- <CODE><A HREF="gal-containers.html">Containers</A></CODE> subsystem to
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-- implement containers.</DL>
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-- 27-OCT-2001 TW Initial version.
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-- 16-NOV-2001 TW Added boiler-plate comments.
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-- 20-NOV-2001 TW Added Unordered_Error.
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-------------------------------------------------------------------------------
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pragma License (Modified_GPL);
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Container_Empty : exception;
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-- May be raised by some ADTs when an illegal operation is attempted on
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-- an empty ADT object, e.g. trying to delete an item from an empty tree
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Container_Full : exception;
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-- May be raised by bounded ADTs when an item should be added to an ADT
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-- that is already full.
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Range_Error : exception;
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-- Raised by operations that support ranges of some kind if the range is
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-- invalid, e.g. there are some list operations where ranges can be
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-- specified using two positions -- these operations raise Range_Error
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-- if the two positions are not on the same list, or one of them is null.
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Not_Found : exception;
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-- Raised if an item we looked for in an ADT was not found, and the ADT
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-- object is not empty. (If it is empty, Container_Empty should be raised
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Duplicate_Key : exception;
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-- Raised by asome ADTs that don't allow duplicates when a second item
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-- that is considered equal to an item already in the ADT is about to be
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Container_Error : exception;
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-- General consistency error. Raised e.g. when an iterator is used that
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-- has becomes invalid because the item it was referencing has vanished.
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Navigation_Error : exception;
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-- Raised when a semantically illegal operation through a position is
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-- attempted, such as inserting an element after a position that already
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-- is beyond the end of a list.
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Unordered_Error : exception;
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-- Raised by relational operators (<,>,<=,>=) if the two objects to be
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-- compared are unordered. This can e.g. happen for list positions, if
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-- the two positions are on different lists, or if one of them is null.
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-- In addition to these exceptions, any ADT may potentially raise
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-- Constraint_Error if an operation through a null-iterator is attempted.
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-- Storage_Error if a dynamic storage allocation has failed.
added
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gal-adt.ads
