From 400075d9d9b6410c9f7952ca52c35806b46b3177 Mon Sep 17 00:00:00 2001
From: Isaac van Bakel <ivb@vanbakel.io>
Date: Tue, 1 Aug 2017 13:03:03 +0100
Subject: Fixed all unnecessary muts in language core

---
 src/libstd/collections/hash/map.rs | 2 +-
 src/libstd/sync/once.rs            | 2 +-
 src/libstd/sys/unix/rand.rs        | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'src/libstd')

diff --git a/src/libstd/collections/hash/map.rs b/src/libstd/collections/hash/map.rs
index 12241b3f881..7e2229a8f84 100644
--- a/src/libstd/collections/hash/map.rs
+++ b/src/libstd/collections/hash/map.rs
@@ -1618,7 +1618,7 @@ impl<'a, K, V, S> IntoIterator for &'a mut HashMap<K, V, S>
     type Item = (&'a K, &'a mut V);
     type IntoIter = IterMut<'a, K, V>;
 
-    fn into_iter(mut self) -> IterMut<'a, K, V> {
+    fn into_iter(self) -> IterMut<'a, K, V> {
         self.iter_mut()
     }
 }
diff --git a/src/libstd/sync/once.rs b/src/libstd/sync/once.rs
index d9edf5d1254..bb18fe95a9d 100644
--- a/src/libstd/sync/once.rs
+++ b/src/libstd/sync/once.rs
@@ -267,7 +267,7 @@ impl Once {
     #[cold]
     fn call_inner(&'static self,
                   ignore_poisoning: bool,
-                  mut init: &mut FnMut(bool)) {
+                  init: &mut FnMut(bool)) {
         let mut state = self.state.load(Ordering::SeqCst);
 
         'outer: loop {
diff --git a/src/libstd/sys/unix/rand.rs b/src/libstd/sys/unix/rand.rs
index 77ebad4e344..1f56a299407 100644
--- a/src/libstd/sys/unix/rand.rs
+++ b/src/libstd/sys/unix/rand.rs
@@ -12,13 +12,13 @@ pub use self::imp::OsRng;
 
 use mem;
 
-fn next_u32(mut fill_buf: &mut FnMut(&mut [u8])) -> u32 {
+fn next_u32(fill_buf: &mut FnMut(&mut [u8])) -> u32 {
     let mut buf: [u8; 4] = [0; 4];
     fill_buf(&mut buf);
     unsafe { mem::transmute::<[u8; 4], u32>(buf) }
 }
 
-fn next_u64(mut fill_buf: &mut FnMut(&mut [u8])) -> u64 {
+fn next_u64(fill_buf: &mut FnMut(&mut [u8])) -> u64 {
     let mut buf: [u8; 8] = [0; 8];
     fill_buf(&mut buf);
     unsafe { mem::transmute::<[u8; 8], u64>(buf) }
-- 
cgit 1.4.1-3-g733a5