`for x in xs.iter()` -> `for x in &xs`

5 files changed, 12 insertions, 12 deletions

diff --git a/src/libstd/old_io/extensions.rs b/src/libstd/old_io/extensions.rs
index f429f731b7d..d729c2800ce 100644
--- a/src/libstd/old_io/extensions.rs
+++ b/src/libstd/old_io/extensions.rs
@@ -406,12 +406,12 @@ mod test {
         let uints = [0, 1, 2, 42, 10_123, 100_123_456, ::u64::MAX];
 
         let mut writer = Vec::new();
-        for i in uints.iter() {
+        for i in &uints {
             writer.write_le_u64(*i).unwrap();
         }
 
         let mut reader = MemReader::new(writer);
-        for i in uints.iter() {
+        for i in &uints {
             assert!(reader.read_le_u64().unwrap() == *i);
         }
     }
@@ -422,12 +422,12 @@ mod test {
         let uints = [0, 1, 2, 42, 10_123, 100_123_456, ::u64::MAX];
 
         let mut writer = Vec::new();
-        for i in uints.iter() {
+        for i in &uints {
             writer.write_be_u64(*i).unwrap();
         }
 
         let mut reader = MemReader::new(writer);
-        for i in uints.iter() {
+        for i in &uints {
             assert!(reader.read_be_u64().unwrap() == *i);
         }
     }
@@ -437,12 +437,12 @@ mod test {
         let ints = [::i32::MIN, -123456, -42, -5, 0, 1, ::i32::MAX];
 
         let mut writer = Vec::new();
-        for i in ints.iter() {
+        for i in &ints {
             writer.write_be_i32(*i).unwrap();
         }
 
         let mut reader = MemReader::new(writer);
-        for i in ints.iter() {
+        for i in &ints {
             // this tests that the sign extension is working
             // (comparing the values as i32 would not test this)
             assert!(reader.read_be_int_n(4).unwrap() == *i as i64);
diff --git a/src/libstd/old_io/fs.rs b/src/libstd/old_io/fs.rs
index 0a9aeb849be..142f723ef71 100644
--- a/src/libstd/old_io/fs.rs
+++ b/src/libstd/old_io/fs.rs
@@ -1110,7 +1110,7 @@ mod test {
         }
         let files = check!(readdir(dir));
         let mut mem = [0u8; 4];
-        for f in files.iter() {
+        for f in &files {
             {
                 let n = f.filestem_str();
                 check!(File::open(f).read(&mut mem));
diff --git a/src/libstd/old_io/net/addrinfo.rs b/src/libstd/old_io/net/addrinfo.rs
index e37744f3aa3..2b7506b5c34 100644
--- a/src/libstd/old_io/net/addrinfo.rs
+++ b/src/libstd/old_io/net/addrinfo.rs
@@ -121,7 +121,7 @@ mod test {
         let ipaddrs = get_host_addresses("localhost").unwrap();
         let mut found_local = false;
         let local_addr = &Ipv4Addr(127, 0, 0, 1);
-        for addr in ipaddrs.iter() {
+        for addr in &ipaddrs {
             found_local = found_local || addr == local_addr;
         }
         assert!(found_local);
diff --git a/src/libstd/old_io/process.rs b/src/libstd/old_io/process.rs
index f253f9799e9..79b29c31f6c 100644
--- a/src/libstd/old_io/process.rs
+++ b/src/libstd/old_io/process.rs
@@ -400,7 +400,7 @@ impl fmt::Debug for Command {
     /// character.
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         try!(write!(f, "{:?}", self.program));
-        for arg in self.args.iter() {
+        for arg in &self.args {
             try!(write!(f, " '{:?}'", arg));
         }
         Ok(())
@@ -1045,7 +1045,7 @@ mod tests {
         let output = String::from_utf8(prog.wait_with_output().unwrap().output).unwrap();
 
         let r = os::env();
-        for &(ref k, ref v) in r.iter() {
+        for &(ref k, ref v) in &r {
             // don't check windows magical empty-named variables
             assert!(k.is_empty() ||
                     output.contains(format!("{}={}", *k, *v).as_slice()),
@@ -1063,7 +1063,7 @@ mod tests {
         let output = String::from_utf8(prog.wait_with_output().unwrap().output).unwrap();
 
         let r = os::env();
-        for &(ref k, ref v) in r.iter() {
+        for &(ref k, ref v) in &r {
             // don't check android RANDOM variables
             if *k != "RANDOM".to_string() {
                 assert!(output.contains(format!("{}={}",
diff --git a/src/libstd/old_io/test.rs b/src/libstd/old_io/test.rs
index f49e2397d42..af829c2cfbb 100644
--- a/src/libstd/old_io/test.rs
+++ b/src/libstd/old_io/test.rs
@@ -92,7 +92,7 @@ fn base_port() -> u16 {
 
     let mut final_base = base;
 
-    for &(dir, base) in bases.iter() {
+    for &(dir, base) in &bases {
         if path_s.contains(dir) {
             final_base = base;
             break;