| Value | Meaning |
|---|---|
| IN_ORDER0 | vists a node's left child first, then the node itself, then its right child. This is the one to use if you want the output sorted according to the compare function. |
| PRE_ORDER1 | visits a node, then its children. |
| POST_ORDER2 | visits the node's children, then the node itself. |
| LEVEL_ORDER3 | is not implemented for [balanced binary trees][glib-Balanced-Binary-Trees]. For [n-ary trees][glib-N-ary-Trees], it vists the root node first, then its children, then its grandchildren, and so on. Note that this is less efficient than the other orders. |
Specifies the type of traversal performed by g_tree_traverse(), g_node_traverse() and g_node_find(). The different orders are illustrated here: - In order: A, B, C, D, E, F, G, H, I
- Pre order: F, B, A, D, C, E, G, I, H
- Post order: A, C, E, D, B, H, I, G, F
- Level order: F, B, G, A, D, I, C, E, H