Re: raised PROGRAM_ERROR : XXXXXX finalize/adjust raised exception

["Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>]

On 2017-05-06 14:18, reinert wrote:

> I got the following rare error message (when running my Ada program under debian - updated):
>
> "raised PROGRAM_ERROR : cells.ads:43 finalize/adjust raised exception"
>
>
> Line 43-50 in "cells.ads" is like this:
>
>   type cell_observation_t is record
>       id                  : cell_names1.target_t;
>       state               : cell_state_t         := live;
>       r, dr               : real_vector2d        := (0.0, 0.0);
>       axis                : degree_t;
>       children1           : cell_names1.cell_names_sets.set;
>       pre_cell, next_cell : target_t             := cnil;
>    end record;
>
> Is there something obvious I should be aware of?

Exceptions inside controlled object's finalization. Presumably you have 
a controlled member in cell_observation_t.

Add this to the main program:

    GNAT.Exception_Traces.Trace_On (GNAT.Exception_Traces.Every_Raise);

to see the original issue.

(Frequently it is an unhandled exception that rolls the stack, which in 
turn destroys a controlled object that raises an exception in its 
Finalize, all thoroughly hidden away with a Program_Error presented 
instead...)

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de