[Gdal-dev] OGRSpatialReference::exportToProj4 causes segmentationerror

[Frank Warmerdam]

Xiaodong Zhang wrote:

>>You need to pass a pointer to a pointer where the resulting string can be
>>assigned.  I'm not sure why it would work with 1.1.8 unless it was just a
>>coincidental thing about where the unitialized ppProj pointed.
>>
>>It should be something like:
>>
>>   char **pszProjWKT = NULL;
> 
> 
> It has to be 'char *pszProjWKT' instead of double pointers, otherwise the
> compile gives the following error
> 
> `OGRSpatialReference::exportToProj4 (char ***)'
> /usr/local/include/ogr_spatialref.h:209: candidates are: OGRErr
> OGRSpatialReference::exportToProj4
> (char **) const
> 
> Is this what to be expected?

Hi,

Sorry, yes, you are right.  I got too caught up in deciding on a name
for the variable and forgot to adjust to being just "char *" instead of "char **".

Best regards,
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