[gdal-dev] GDALDatasetDriver->poDriver = NULL

[Mateusz Loskot]

On Thu, 8 Oct 2020 at 17:17, Momtchil Momtchev <momtchil at momtchev.com> wrote:
>
>     Is it normal that for this code
>
> int main() {
>     GDALAllRegister();
>     const char *pszFormat = "GTiff";
>     GDALDriver *driver = GetGDALDriverManager()->GetDriverByName(pszFormat);
>     if (driver == nullptr) {
>         printf("driver is null\n");
>         return 1;
>     }
>     std::string path = "sample.tif";
>     GDALAccess access = GA_ReadOnly;
>     GDALOpenInfo *open_info = new GDALOpenInfo(path.c_str(), access);
>     GDALDataset *ds = driver->pfnOpen(open_info);
>     printf("%p\n", ds->GetDriver());
>     printf("%s\n", ds->GetDriver()->GetDescription());
> }
>
> I get ds->GetDriver = NULL (and a segfault on the following line)? Tried on 3.1.2 and 3.1.0

Try to open a dataset as presented here

https://gdal.org/tutorials/raster_api_tut.html

Best regards.
-- 
Mateusz Loskot, http://mateusz.loskot.net