Document some behaviour I'm depending on.

(TAILQ_FOREACH leaves the variable NULL if there were no more to do)
2001-12-28 22:00:27 +00:00 · 2001-12-28 22:00:27 +00:00 · c7d1e5d15e
commit c7d1e5d15e
parent e208ef8e1a
1 changed files with 2 additions and 0 deletions
--- a/share/man/man3/queue.3
+++ b/share/man/man3/queue.3
@ -738,6 +738,8 @@ traverses the tail queue referenced by
 .Fa head
 in the forward direction, assigning each element in turn to
 .Fa var .
+.Fa Var 
+is set to NULL if the loop completes normally, or if there were no elements.
 .Pp
 The macro
 .Nm TAILQ_FOREACH_REVERSE