#536: memory corruption ----------------------+----------------------------------------------------- Reporter: martinl | Owner: grass-dev@lists.osgeo.org Type: defect | Status: reopened Priority: blocker | Milestone: 7.0.0 Component: Vector | Version: svn-trunk Resolution: | Keywords: Platform: Linux | Cpu: x86-32 ----------------------+----------------------------------------------------- Comment (by mmetz):
Replying to [comment:18 martinl]: > When implementing very basic GEOS support in v.select I was facing to the similar problem. > > In the loop (http://trac.osgeo.org/grass/browser/grass/trunk/vector/v.select/main.c#L176) is initialized ifield variable. Inside of the loop everything is OK - ifield[0] and ifield[1] are initialized properly. After leaving the loop in ifield[0] occurs random value. > > More strangely when I add before line http://trac.osgeo.org/grass/browser/grass/trunk/vector/v.select/main.c#L37 > > {{{ > struct GOption *in_opt[2]; > }}} > > memory is not corrupted at all. > Doesn't make any sense to me why ifield[0] should get a random value. Maybe just use the working solution? FYI, I have already taken some algorithms from GEOS, translated from C++ to C, optimized where possible and put into the grass7 vector libs, replacing less efficient algorithms (topology building for areas). If you want some GEOS functionality to be available in the grass vector libs directly, we could join forces. Best, Markus -- Ticket URL: <http://trac.osgeo.org/grass/ticket/536#comment:19> GRASS GIS <http://grass.osgeo.org>
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