From 1565fc21205cf6f589c89732babc6991a7baaee8 Mon Sep 17 00:00:00 2001
From: Simon Sapin <simon.sapin@exyr.org>
Date: Wed, 27 Jun 2018 15:04:49 +0200
Subject: [PATCH] Document that Layout::from_size_align does not allow align=0

This was already implied since zero is not a power of two, but maybe
worth pointing out.
---
 src/libcore/alloc.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libcore/alloc.rs b/src/libcore/alloc.rs
index 0c074582281d6..91447e01ad4fa 100644
--- a/src/libcore/alloc.rs
+++ b/src/libcore/alloc.rs
@@ -67,6 +67,8 @@ impl Layout {
     /// or returns `LayoutErr` if either of the following conditions
     /// are not met:
     ///
+    /// * `align` must not be zero,
+    ///
     /// * `align` must be a power of two,
     ///
     /// * `size`, when rounded up to the nearest multiple of `align`,