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src
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test
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ui
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functions-closures
/
capture-clauses-boxed-closures.rs
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// run-pass
fn
each
<
T
,
F
>(
x
:
&[
T
],
mut
f
:
F
)
where F
:
FnMut
(&
T
)
{
for
val in x
{
f
(
val
)
}
}
fn
main
()
{
let
mut
sum
=
0
_usize
;
let
elems
=
[
1
_usize
,
2
,
3
,
4
,
5
];
each
(&
elems
,
|
val
|
sum
+=
*
val
);
assert_eq
!(
sum
,
15
);
}