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impl-trait
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universal_hrtb_anon.rs
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//@ run-pass
fn
hrtb
(
f
:
impl
Fn
(&
u32
)
->
u32
)
->
u32
{
f
(&
22
)
+
f
(&
44
)
}
fn
main
()
{
let
sum
=
hrtb
(|
x
|
x
*
2
);
assert_eq
!(
sum
,
22
*
2
+
44
*
2
);
}