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rust
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rust
/
HEAD
/
.
/
tests
/
ui
/
consts
/
control-flow
/
try.rs
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//@ check-pass
#![
allow
(
dead_code
)]
#![
feature
(
const_trait_impl
)]
#![
feature
(
const_try
)]
const
fn
opt
()
->
Option
<
i32
>
{
let
x
=
Some
(
2
);
x
?;
None
}
fn
main
()
{}