From 9a11f6e3ff6b22f41be74f4aa66fabc30040eebf Mon Sep 17 00:00:00 2001
From: Ulrik Sverdrup <bluss@users.noreply.github.com>
Date: Fri, 11 Dec 2015 18:15:57 +0100
Subject: [PATCH] nomicon: Fix variance in example

&'b mut B was described incorrectly (just in this example, is correct in
the actual text).
---
 subtyping.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/subtyping.md b/subtyping.md
index 65dcb6a..0253a1f 100644
--- a/subtyping.md
+++ b/subtyping.md
@@ -200,7 +200,7 @@ use std::cell::Cell;
 
 struct Foo<'a, 'b, A: 'a, B: 'b, C, D, E, F, G, H> {
     a: &'a A,     // variant over 'a and A
-    b: &'b mut B, // invariant over 'b and B
+    b: &'b mut B, // variant over 'b and invariant over B
     c: *const C,  // variant over C
     d: *mut D,    // invariant over D
     e: Vec<E>,    // variant over E