Auto merge of #34819 - GuillaumeGomez:rollup, r=GuillaumeGomez

Rollup of 7 pull requests

- Successful merges: #34456, #34733, #34777, #34794, #34799, #34804, #34818
- Failed merges: #33951

2 files changed, 5 insertions, 4 deletions

diff --git a/src/libstd/sys/windows/handle.rs b/src/libstd/sys/windows/handle.rs
index 74546bb893b..d10abae2865 100644
--- a/src/libstd/sys/windows/handle.rs
+++ b/src/libstd/sys/windows/handle.rs
@@ -46,10 +46,10 @@ impl Handle {
 
     pub fn new_event(manual: bool, init: bool) -> io::Result<Handle> {
         unsafe {
-            let event = c::CreateEventW(0 as *mut _,
+            let event = c::CreateEventW(ptr::null_mut(),
                                         manual as c::BOOL,
                                         init as c::BOOL,
-                                        0 as *const _);
+                                        ptr::null());
             if event.is_null() {
                 Err(io::Error::last_os_error())
             } else {
diff --git a/src/libstd/sys/windows/pipe.rs b/src/libstd/sys/windows/pipe.rs
index 8631a63d653..6e9c67051a6 100644
--- a/src/libstd/sys/windows/pipe.rs
+++ b/src/libstd/sys/windows/pipe.rs
@@ -12,9 +12,10 @@ use prelude::v1::*;
 use os::windows::prelude::*;
 
 use ffi::OsStr;
-use path::Path;
 use io;
 use mem;
+use path::Path;
+use ptr;
 use rand::{self, Rng};
 use slice;
 use sys::c;
@@ -66,7 +67,7 @@ pub fn anon_pipe() -> io::Result<(AnonPipe, AnonPipe)> {
                                              4096,
                                              4096,
                                              0,
-                                             0 as *mut _);
+                                             ptr::null_mut());
 
             // We pass the FILE_FLAG_FIRST_PIPE_INSTANCE flag above, and we're
             // also just doing a best effort at selecting a unique name. If