On 16 July 2012 10:10, taibc <[email protected]> wrote:
> I am trying to use OGR classes on VS2010 to read and write from file as the
> link:
> http://gdal.org/ogr/ogr_apitut.html
>
> But I got an error, please see attached screenshot for details.
>
> http://osgeo-org.1560.n6.nabble.com/file/n4988534/error.png
Your pointer poLayer is NULL.
Perhaps the layer you want could not be found by given name
and this call returns NULL:
poLayer = poDS->GetLayerByName(...)
Just check:
if( poLayer == NULL )
{
printf( "Layer not found.\n" );
exit( 1 );
}
> Do you know this error ?
http://en.wikipedia.org/wiki/Segmentation_fault#Segmentation.2C_page_fault.2C_and_access_violation
I'd recommend you to get a good C/C++ book.
Best regards,
--
Mateusz Loskot, http://mateusz.loskot.net
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