Reduce libcore/liballoc's dependence on pointer sizes

1 files changed, 5 insertions, 5 deletions

diff --git a/src/libcore/hash/mod.rs b/src/libcore/hash/mod.rs
index 361c6d700de..2a4c909d638 100644
--- a/src/libcore/hash/mod.rs
+++ b/src/libcore/hash/mod.rs
@@ -144,11 +144,11 @@ pub trait Hasher {
     #[inline]
     #[stable(feature = "hasher_write", since = "1.3.0")]
     fn write_usize(&mut self, i: usize) {
-        if cfg!(target_pointer_width = "32") {
-            self.write_u32(i as u32)
-        } else {
-            self.write_u64(i as u64)
-        }
+        let bytes = unsafe {
+            ::slice::from_raw_parts(&i as *const usize as *const u8,
+                                    mem::size_of::<usize>())
+        };
+        self.write(bytes);
     }
 
     /// Write a single `i8` into this hasher.