From 323c20c8a4747aa96285c90005a00aa43228af8e Mon Sep 17 00:00:00 2001
From: Oliver 'ker' Schneider <git-spam-no-reply9815368754983@oli-obk.de>
Date: Fri, 11 Nov 2016 11:55:47 +0100
Subject: [breaking-change] change the `box_free` item to accept pointers to
 unsized types

---
 src/doc/book/lang-items.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/doc')

diff --git a/src/doc/book/lang-items.md b/src/doc/book/lang-items.md
index de7dbab3f12..9fb130845fb 100644
--- a/src/doc/book/lang-items.md
+++ b/src/doc/book/lang-items.md
@@ -46,8 +46,8 @@ unsafe fn deallocate(ptr: *mut u8, _size: usize, _align: usize) {
 }
 
 #[lang = "box_free"]
-unsafe fn box_free<T>(ptr: *mut T) {
-    deallocate(ptr as *mut u8, ::core::mem::size_of::<T>(), ::core::mem::align_of::<T>());
+unsafe fn box_free<T: ?Sized>(ptr: *mut T) {
+    deallocate(ptr as *mut u8, ::core::mem::size_of_val(&*ptr), ::core::mem::align_of_val(&*ptr));
 }
 
 #[start]
-- 
cgit 1.4.1-3-g733a5