[redland-dev] rasqal_row - how to use it?

[Victor Porton]

In http://librdf.org/rasqal/docs/api/rasqal-section-row.html there is
rasqal_row_set_value_at() but there is no rasqal_row_get_value_at().

Why is it missing?

How to use Rasqal query results?

Suppose I have N variables in a query an M rows (so NxM values).

How should I retrieve these values?

Do I understand correctly that rasqal_query_results_get_boolean()
should be applied only when a row is a single boolean variable binding?

Why there is rasqal_query_results_get_boolean but there is for instance
 no rasqal_query_results_get_double?

I remind that I write Ada-2012 bindings for Rasqal. Please help my
project.