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-rw-r--r--src/libstd/rt/stack.rs4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/libstd/rt/stack.rs b/src/libstd/rt/stack.rs
index 4b2a9b7a6cc..da70659acec 100644
--- a/src/libstd/rt/stack.rs
+++ b/src/libstd/rt/stack.rs
@@ -46,7 +46,9 @@ impl StackSegment {
 
     /// Point one word beyond the high end of the allocated stack
     pub fn end(&self) -> *uint {
-        vec::raw::to_ptr(self.buf).offset(self.buf.len() as int) as *uint
+        unsafe {
+            vec::raw::to_ptr(self.buf).offset(self.buf.len() as int) as *uint
+        }
     }
 }