[GRASS-dev] Re: [GRASS GIS] #869: Compile libs with -fexception

[Glynn Clements]

Radim Blazek wrote:

> Thanks for the suggestion. The title of
> http://trac.osgeo.org/qgis/ticket/1878 is however "remove
> setjmp/longjmp in grass plugin&provider and use exceptions instead" so
> the intention was to remove setjmp/longjmp.
> I don't know exactly if there were problems with setjmp/longjmp or it
> was just attempt to improve the code. Using exceptions is certainly
> better.

Whichever approach is used, any code calling G_fatal_error() is
entitled to assume that it won't be called again, so it doesn't need
to perform clean-up.

If you leave the error handler via longjmp() or an exception, then
re-enter the GRASS libraries, all bets are off.

-- 
Glynn Clements <glynn at gclements.plus.com>