CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

pascal8361 wrote:
> Hello
>
> I have some halfedge_handles and through proceeding they should be set.
>
> But if some conditions are not valid this might not happen, so I want to
> check for that.
>
> ....
> Halfedge_handle handle;
>
> if(condition)
>   handle = some_existing_handle;
> else
>   nothing happens;
>
> if (handle)
>   do something
> else
>   something else
>
> is there a way to do this??
If I remember well, you can do

if (handle!=Halfedge_handle())
   do something
else
   something else


S.