isvalidreason()

Datum isvalidreason

(

PG_FUNCTION_ARGS

)

Definition at line 1502 of file postgis/lwgeom_geos.c.

{
        GSERIALIZED *geom = NULL;
        char *reason_str = NULL;
        text *result = NULL;
        const GEOSGeometry *g1 = NULL;
 
        geom = PG_GETARG_GSERIALIZED_P(0);
 
        initGEOS(lwpgnotice, lwgeom_geos_error);
 
        g1 = POSTGIS2GEOS(geom);
        if ( g1 )
        {
                reason_str = GEOSisValidReason(g1);
                GEOSGeom_destroy((GEOSGeometry *)g1);
                if (!reason_str) HANDLE_GEOS_ERROR("GEOSisValidReason");
                result = cstring_to_text(reason_str);
                GEOSFree(reason_str);
        }
        else
        {
                result = cstring_to_text(lwgeom_geos_errmsg);
        }
 
        PG_FREE_IF_COPY(geom, 0);
        PG_RETURN_POINTER(result);
}

References HANDLE_GEOS_ERROR, lwgeom_geos_errmsg, lwgeom_geos_error(), and POSTGIS2GEOS().

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