-/**
- * \ingroup XBT_dynar
- *
- * Put the cursor at the begining of the dynar. (actually, one step before
- * the begining, so that you can iterate over the dynar with a for loop).
- *
- * Dynar cursor are as dumb as possible. If you insert or remove elements
- * from the dynar between the creation and end, you'll fuck up your
- * cursors.