Mathieu Pagé wrote:
>
> <code>
> mysqlpp::Row row;
> mysqlpp::Row::size_type i;
> for (i = 0; row = res.at(i); ++i)
> cout <<row.at(0) <<endl;
> </code>
>
> however I get an length_error exception on "row = res.at(i)".
I think you're expecting Row::at() to return false (or, rather, an
object that can be converted to false) when you walk off the end of the
result set. MySQL++ doesn't do that sort of thing, by design. It
signals errors with exceptions, just as you saw.
That is the fall-back behavior when you turn off exceptions, however.
Read the user manual for details.
You might also look at examples/simple3.cpp. It operates in a way very
similar to what you're doing, without needing special treatment. It
does that by using a different type of query than you are using.
