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Import Upstream version 20180207
[hcoop/debian/mlton.git]
/
benchmark
/
tests
/
vector-rev.sml
1
(*
Written by Stephen
Weeks
(
sweeks@sweeks
.
com
). *)
2
3
structure
Main
=
4
struct
5
open Vector
6
7
fun
rev v
=
8
let
9
val
n
=
length v
10
in
11
tabulate
(
n
,
fn
i
=>
sub
(
v
,
n
-
1
-
i
))
12
end
13
14
fun
doit n
=
15
let
16
val
v
=
tabulate
(
200000
,
fn
i
=>
i
)
17
fun
loop n
=
18
if
n
<
0
19
then
()
20
else
21
if
0
=
sub
(
rev
(
rev v
),
0
)
22
then
loop
(
n
-
1
)
23
else raise
Fail
"bug"
24
in
loop
(
n
*
1000
)
25
end
26
end