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package Xlbt_Exceptions is
------------------------------------------------------------------------------
-- X Library Exceptions
--
-- Xlbt_Exceptions - Exceptions generated by the X Library.
------------------------------------------------------------------------------
-- Copyright 1989 - 1991 by Rational, Santa Clara, California.
-- Copyright 1985 - 1989 by the Massachusetts Institute of Technology
--
--                  All Rights Reserved.
--
-- Permission to use, copy, modify, and distribute this software and its
-- documentation for any purpose and without fee is hereby granted,
-- provided that the above copyright notice(s) appear in all copies and that
-- both that copyright notice(s) and this permission notice appear in
-- supporting documentation, and that the names of MIT or Rational not be
-- used in advertising or publicity pertaining to distribution of the software
-- without specific, written prior permission.
--
-- MIT and Rational disclaim all warranties with regard to this software,
-- including all implied warranties of merchantability and fitness, in no
-- event shall MIT or Rational be liable for any special, indirect or
-- consequential damages or any damages whatsoever resulting from loss of use,
-- data or profits, whether in an action of contract, negligence or other
-- tortious action, arising out of or in connection with the use or performance
-- of this software.
------------------------------------------------------------------------------

--\f

    X_Network_Io_Error : exception;
    ----An error occurred during an attempt to Receive/Transmit on the network.
    --  The default handler reports the error to the error log and then
    -- raises this exception.

    X_Unhandled_Error : exception;
    ----An Error event occurred and no user handler was set up.  The default
    --  error handler reports the error to the error log and then raises this
    --  exception.

    X_Invalid_Procedure_Variable : exception;
    ----Raised when an attempt to convert a value of the "generic"
    --  X_Procedure_Variable type is being converted to a specific procedure
    --  variable type and this is invalid.  Meaning that the parameter
    --  profile of the procedure and of the specific procedure variable type
    --  do not match.

    X_Bad_Procedure_Variable : exception;
    ----Raised when some procedure variable operation is performed upon
    --  a) a None_X_Procedure_Variable value (an actual value is required),
    --  b) an inappropriate procedure variable value (the value is for a
    --     procedure with a different parameter profile), or,
    --  c) a "bad" procedure variable is used (one example is a dynamic
    --     procedure that is referenced but is not longer available, it may
    --     not be possible to detect this in all cases).

    X_Invalid_Universal_Pointer : exception;
    ----Raised when some universal pointer operation is performed upon
    --  a) a None_X_Universal_Pointer value (an actual value is required),
    --  b) an inappropriate universal pointer value (a value cannot be
    --     converted to the requested Access_Type), or,
    --  c) a previously freed universal pointer value is referenced (it may
    --     not be possible to detect this in all cases).

    X_Library_Confusion : exception;
    ----The X Library is in some place or in some state that it is not prepared
    --  to handle.  This is probably a bug of some kind, not necessarily a bug
    --  within the X Library itself; it could be a bug in the X Server or even
    --  in the application.  This is only raised in those situations where
    --  the X Library must throw up its hands and appeal to higher authority.

end Xlbt_Exceptions;