init_first

Description:

public bool init_first (Bitset @set, out uint value)

Initializes an iterator for set and points it to the first value in set.

If set is empty, false is returned and value is set to g_maxuint.

value	Set to the first value in `set`
iter	a pointer to an uninitialized `GtkBitsetIter`
set	a `GtkBitset`

true if set isn't empty.