From 022082ed364e927427c75dfb3ecd29a163eae602 Mon Sep 17 00:00:00 2001
From: unknown <abramlujan@gmail.com>
Date: Wed, 30 Mar 2022 00:23:40 -0300
Subject: [PATCH] Fix MIRI error in inout_buf.rs

See https://github.com/rust-lang/unsafe-code-guidelines/issues/133
Calling as_mut_ptr creates a unique reference, and as_ptr a shared
reference. These 2 conflict, and one invalidates the other. Both
ptr need to be reborrows of or be basically the same pointer.
---
 inout/src/inout_buf.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/inout/src/inout_buf.rs b/inout/src/inout_buf.rs
index 0ab1b8dc..398fe793 100644
--- a/inout/src/inout_buf.rs
+++ b/inout/src/inout_buf.rs
@@ -18,9 +18,10 @@ pub struct InOutBuf<'inp, 'out, T> {
 impl<'a, T> From<&'a mut [T]> for InOutBuf<'a, 'a, T> {
     #[inline(always)]
     fn from(buf: &'a mut [T]) -> Self {
+        let out_ptr = buf.as_mut_ptr();
         Self {
-            in_ptr: buf.as_ptr(),
-            out_ptr: buf.as_mut_ptr(),
+            in_ptr: out_ptr,
+            out_ptr: out_ptr,
             len: buf.len(),
             _pd: PhantomData,
         }