---

yaml
---
r: 12970
b: refs/heads/master
c: 082a95a
h: refs/heads/master
v: v3

Author: olsonjeffery

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: 3d8f7d644b97ba322cfdb9cb0d7bd557f4ccda48
+refs/heads/master: 082a95a0777d03fd7469b8df691e9caa8217f8ac
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 4a81779abd786ff22d71434c6d9a5917ea4cdfff
 refs/heads/try: 2898dcc5d97da9427ac367542382b6239d9c0bbf

trunk/src/libcore/result.rs

@@ -216,6 +216,21 @@ fn iter2<S,T,U:copy>(ss: [S], ts: [T],
     ret ok(());
 }
 
+#[doc="
+Unwraps a result, assuming it is an `ok(T)`
+
+This operation is unsafe.
+"]
+fn unwrap<T, U>(-res: result<T, U>) -> T unsafe {
+    let addr = alt res {
+      ok(x) { ptr::addr_of(x) }
+      err(_) { fail "option none" }
+    };
+    let liberated_value = unsafe::reinterpret_cast(*addr);
+    unsafe::forget(res);
+    ret liberated_value;
+}
+
 #[cfg(test)]
 mod tests {
     fn op1() -> result::result<int, str> { result::ok(666) }