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core: doc/err feedback tweeks for result::unwrap

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This commit is contained in:
Jeff Olson 2012-05-19 14:05:39 -07:00 committed by Brian Anderson
parent a40f550ed5
commit bb88f772a4
1 changed files with 1 additions and 3 deletions
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4
src/libcore/result.rs
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@ -218,13 +218,11 @@ fn iter2<S,T,U:copy>(ss: [S], ts: [T],
#[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" }
err(_) { fail "error result" }
};
let liberated_value = unsafe::reinterpret_cast(*addr);
unsafe::forget(res);