opal_interval_tree_black_depth  828 opal/class/opal_interval_tree.c     return opal_interval_tree_black_depth (tree, node->left, depth);
opal_interval_tree_black_depth  845 opal/class/opal_interval_tree.c     black_depth = opal_interval_tree_black_depth (tree, tree->root.left, 0);