Replace "iff" with "if and only if"

gmcgibbon · gmcgibbon · commit e92047361875 · 2021-01-20T20:09:33.000-05:00
iff means if and only if, but readers without that knowledge might
assume this to be a spelling mistake. To me, this seems like
exclusionary language that is unnecessary. Simply using "if and only if"
instead should suffice.
diff --git a/lib/net/ftp.rb b/lib/net/ftp.rb
@@ -1356,7 +1356,7 @@ def close
     end
 
     #
-    # Returns +true+ iff the connection is closed.
+    # Returns +true+ if and only if the connection is closed.
     #
     def closed?
       @sock == nil or @sock.closed?

Original file line number	Diff line number	Diff line change
`@@ -1356,7 +1356,7 @@ def close`
`1356`	`1356`	`end`
`1357`	`1357`
`1358`	`1358`	`#`
`1359`		`- # Returns +true+ iff the connection is closed.`
	`1359`	`+ # Returns +true+ if and only if the connection is closed.`
`1360`	`1360`	`#`
`1361`	`1361`	`def closed?`
`1362`	`1362`	`@sock == nil or @sock.closed?`