24 lines
547 B
Text
24 lines
547 B
Text
#check @Array.mk
|
|
|
|
def v : Array Nat := @Array.mk Nat 10 (λ ⟨i, _⟩, i)
|
|
|
|
def w : Array Nat :=
|
|
(mkArray 9 1).push 3
|
|
|
|
def f : Fin w.sz → Nat :=
|
|
Array.casesOn w (λ _ f, f)
|
|
|
|
def arraySum (a : Array Nat) : Nat :=
|
|
a.foldl (+) 0
|
|
|
|
#exit
|
|
|
|
#eval mkArray 4 1
|
|
#eval Array.map (+10) v
|
|
#eval f ⟨1, sorry⟩
|
|
#eval f ⟨9, sorry⟩
|
|
#eval (((mkArray 1 1).push 2).push 3).foldl 0 (+)
|
|
#eval arraySum (mkArray 10 1)
|
|
#eval (mkArray 10 1).data ⟨1, decTrivial⟩ + 20
|
|
#eval (mkArray 10 1).data ⟨2, decTrivial⟩
|
|
#eval (mkArray 10 3).data ⟨2, decTrivial⟩
|