[QGIS-trac] Re: [Quantum GIS] #1878: remove setjmp/longjmp in grass plugin&provider and use exceptions instead

[Quantum GIS]

#1878: remove setjmp/longjmp in grass plugin&provider and use exceptions instead
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        Reporter:  jef                               |         Owner:  jef          
            Type:  patch                             |        Status:  reopened     
        Priority:  major: does not work as expected  |     Milestone:  Version 1.3.0
       Component:  GRASS                             |       Version:  HEAD         
      Resolution:                                    |      Keywords:               
Platform_version:                                    |      Platform:  All          
        Must_fix:  No                                |   Status_info:  0            
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Comment (by jef):

 Replying to [comment:20 rblazek]:
 > It seems that we are back at the beginning of this ticket. GRASS
 developer seem to be reluctant to compile with -fexception and using
 setjmp/longjmp was suggested http://lists.osgeo.org/pipermail/grass-dev/
 2010-January/048086.html

 I think we shouldn't try to intercept fatal GRASS errors in the GRASS
 library, we shouldn't be using GRASS libraries in the first place.

 We should call GRASS modules (like {{{g.gisenv}}}) and parse their output.
 I think that's Glynn's point in making it harder to use GRASS libraries
 for purposes they are not meant for.

 And I think that's also what the other GUI frontends do.  But that
 probably is a major rewrite of the plugin.

 > For curiosity, were there particular problems with setjmp/longjmp?

 > In any case, I think  that using exceptions is much better, I don't want
 to return to setjmp/longjmp.

 None that I know of.  Just uglyness.

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/1878#comment:21>
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