g_datalist_foreach (
  GData** datalist,
  GDataForeachFunc func,
  gpointer user_data


Calls the given function for each data element of the datalist. The function is called with each data element’s GQuark id and data, together with the given user_data parameter. Note that this function is NOT thread-safe. So unless datalist can be protected from any modifications during invocation of this function, it should not be called.

func can make changes to datalist, but the iteration will not reflect changes made during the g_datalist_foreach() call, other than skipping over elements that are removed.


datalist GData

A datalist.

 The data is owned by the caller of the function.
func GDataForeachFunc

The function to call for each data element.

user_data gpointer

User data to pass to the function.

 The argument can be NULL.
 The data is owned by the caller of the function.