[FWTools] OGRFeature memory problem?
mateusz at loskot.net
Mon May 15 09:12:23 EDT 2006
Mike Toothaker wrote:
> I will start off by apologizing for my lack of geospatial knowledge.
> I have just started a project and I am trying
> to get caught up on the geospatial stuff as quickly as I can while
> working with it. We are using gdal in our project
> and I have the following code(almost an exact copy paste from the
> gdal website). [...]
Please, read the OGR tutorial more carefully and you'll find
that your code is a bit different in case of memory deallocation.
> delete poFeature; //ß--- Error here
Change this line to read as:
OGRFeature::DestroyFeature( poFeature );
On *Windows* , if you're using GDAL DLL (but not linking with static
library) then it's recommended to use dedicated Destroy* functions
instead of C++ 'delete' operator.
This is problem occurs on Windows because of crossing boundaries between
your application and GDAL DLL in case of memory allocation/deallocation.
The memory is allocated on DLL side (GetNextFeature()) but you're trying
to destroy it on your app side (delete operator) and that's incorrect on
I hope that will help.
More information about the FWTools