Rollup merge of #21926 - mzabaluev:raw-lifetime, r=alexcrichton

 New functions, `slice::from_raw_parts` and `slice::from_raw_parts_mut`,
are added to implement the lifetime convention as agreed in rust-lang/rfcs#556.
The functions `slice::from_raw_buf` and `slice::from_raw_mut_buf` are
left deprecated for the time being.

Holding back on changing the signature of `std::ffi::c_str_to_bytes` as consensus in rust-lang/rfcs#592 is building to replace it with a composition of other functions.

Contribution to #21923.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libstd/sys/windows/os.rs b/src/libstd/sys/windows/os.rs
index c71e2d057c3..d8e3e6981df 100644
--- a/src/libstd/sys/windows/os.rs
+++ b/src/libstd/sys/windows/os.rs
@@ -109,7 +109,7 @@ impl Iterator for Env {
                 len += 1;
             }
             let p = p as *const u16;
-            let s = slice::from_raw_buf(&p, len as usize);
+            let s = slice::from_raw_parts(p, len as usize);
             self.cur = self.cur.offset(len + 1);
 
             let (k, v) = match s.iter().position(|&b| b == '=' as u16) {
@@ -296,7 +296,7 @@ impl Iterator for Args {
 
             // Push it onto the list.
             let ptr = ptr as *const u16;
-            let buf = slice::from_raw_buf(&ptr, len as usize);
+            let buf = slice::from_raw_parts(ptr, len as usize);
             OsStringExt::from_wide(buf)
         })
     }