[gdal-dev] how to test the creation and deletion capability of ogr?

[Even Rouault]

Selon Chaitanya kumar CH <chaitanya.ch at gmail.com>:

Atubar

As Chaintanya says and the doc recommands it, you must use the macro and not
string values directly. For one good reason : #define ODrCCreateDataSource
expands to "CreateDataSource"... So "ODrCCreateDataSource" is an invalid input
for OGRSFDriver::TestCapability().

You're also mentionning functions that take strings as arguments but you don't
know which values are valid. Could you be more explicit about which functions ?
Generally the doc should make it clear about the expected meaning / accepted
values. But things can always be improved ;-)

Even

> atubar,
>
> Here is a sample.
> http://trac.osgeo.org/gdal/browser/trunk/gdal/apps/ogr2ogr.cpp#L401
> The preferred #define macro forms are used here. (
> http://www.gdal.org/ogr/classOGRSFDriver.html#6c37cb7552902cd27cd6d4b904d7c744
> )
>
> As per your problem, perhaps the drivers you tested did indeed not support
> creation and deletion. Which drivers were they?
>
> 2009/10/15 atubar <atubar at 126.com>
>
> > Hi,
> >
> > I want to take a test about the capability of creation and deletion for
> > all supported formats of ogr .
> >
> > The code like below,  The parameter "const char" are copied from api doc.
> > But all flag return a value of 0, why ?
> >
> >   int flag;
> >
> >   flag=poDriver->TestCapability("ODrCCreateDataSource");
> >   if(flag==TRUE)
> >    cout<<endl<<"  --Supported Creation. "<<endl;
> >   flag=poDriver->TestCapability("ODrCDeleteDataSource");
> >   if(flag==TRUE)
> >    cout<<endl<<"  --Supported Deletion. "<<endl;
> >
> > Many funcions need const char * params, is there a list of these values ?
> >
> >
> >
> >
> > ------------------------------
> >
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> --
> Best regards,
> Chaitanya kumar CH.
>