Tree terminology Question: children vs descendants

While working on merge-tracking these last few weeks a question on tree
terminology came up:

In this tree:

A
|___
| |
B C
| |___
| | |
D E F

When we talk about A's children do we mean B,C,D,E,F or only B and C?

In the doc string for functions like discover_and_merge_children() we
use "child" to mean the former, i.e. all descendants of A.

But the stricter mathematical/CS definition as I understand it is the
latter, i.e. only nodes connected by one edge.

Is it best to describe B and C as "immediate children" as is done in
svn_depth_t to avoid confusion? Is there a "real" graph theory term to
describe B and C?

Paul B.

P.S. Remember, children are our future! :-P

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Received on Sat Apr 14 17:49:50 2007