From ab5c762a4644c5701dfa14905802979b04cee4b0 Mon Sep 17 00:00:00 2001
From: Robert Griesemer ch
. The channel direction must permit receive oper
and the type of the receive operation is the element type of the channel.
The expression blocks until a value is available.
Receiving from a nil
channel blocks forever.
-Receiving from a closed channel always succeeds,
-immediately returning the element type's zero
-value.
+A receive operation on a closed channel can always proceed
+immediately, yielding the element type's zero value.
-- 2.48.1