mirror of
https://github.com/idris-lang/Idris2.git
synced 2024-12-29 22:51:51 +03:00
ba24892e2f
Co-authored-by: Ohad Kammar <ohad.kammar@ed.ac.uk> Co-authored-by: André Videla <andre.videla@gmail.com> Co-authored-by: Guillaume Allais <guillaume.allais@ens-lyon.org>
56 lines
1.1 KiB
Idris
56 lines
1.1 KiB
Idris
import Data.Vect
|
|
|
|
takeFromStream : List (n ** Vect n Int)
|
|
takeFromStream = [(n ** take n [3..]) | n <- [0, 1, 5]]
|
|
|
|
unsnocCases : List (n ** (Vect n Nat, Nat))
|
|
unsnocCases = [
|
|
(_ ** unsnoc [3])
|
|
, (_ ** unsnoc [3, 4])
|
|
, (_ ** unsnoc [3, 4, 5])
|
|
]
|
|
|
|
scanrMul : List (n ** Vect n Nat)
|
|
scanrMul = [
|
|
(_ ** scanr (*) 2 [])
|
|
, (_ ** scanr (*) 2 [3])
|
|
, (_ ** scanr (*) 2 [5, 4, 3])
|
|
]
|
|
|
|
scanrCons : Vect 4 (List Nat)
|
|
scanrCons = scanr (::) Nil [2, 3, 4]
|
|
|
|
scanr1Mul : List (n ** Vect n Nat)
|
|
scanr1Mul = [
|
|
(_ ** scanr1 (*) [3])
|
|
, (_ ** scanr1 (*) [5, 4, 3])
|
|
]
|
|
|
|
permutation : Vect 4 Char
|
|
permutation = permute ['a', 'b', 'c', 'd'] [0, 3, 2, 1]
|
|
|
|
split2by4 : Vect 2 (Vect 4 Nat)
|
|
split2by4 = kSplits 2 4 [1, 2, 3, 4, 5, 6, 7, 8]
|
|
|
|
split4by2 : Vect 4 (Vect 2 Nat)
|
|
split4by2 = nSplits 2 4 [1, 2, 3, 4, 5, 6, 7, 8]
|
|
|
|
genNoFins : Vect 0 (Fin 0)
|
|
genNoFins = allFins 0
|
|
|
|
gen3Fins : Vect 3 (Fin 3)
|
|
gen3Fins = allFins 3
|
|
|
|
main : IO ()
|
|
main = do
|
|
printLn takeFromStream
|
|
printLn unsnocCases
|
|
printLn scanrMul
|
|
printLn scanrCons
|
|
printLn scanr1Mul
|
|
printLn permutation
|
|
printLn split2by4
|
|
printLn split4by2
|
|
printLn genNoFins
|
|
printLn gen3Fins
|