(* *)
(***********************************************************************)
-(*
- Time-stamp: <Last modified on 2013-03-14 14:50:18 CET by Kim Nguyen>
-*)
-
-let realloc l old_size new_size dummy =
- let l' = Array.create new_size dummy in
- for i = 0 to (min old_size new_size) - 1 do
- Array.unsafe_set l' i (Array.unsafe_get l i);
- done;
- l'
-
module N1 =
struct
- type 'a t = { mutable line : 'a array;
- dummy : 'a;
- mutable offset : int;
- }
- let create a = {
- line = Array.create 0 a;
+ type 'a t = {
+ mutable line : 'a array;
+ dummy : 'a;
+ mutable offset : int;
+ level : int;
+ }
+ type 'a index = int -> 'a
+ let level a = a.level
+ let create_with_level level a = {
+ line = Array.make 0 a;
dummy = a;
offset = ~-1;
-
+ level = level;
}
-
- let print fmt a =
- Format.fprintf fmt "{ offset=%i;\n dummy=_;line=%a \n}\n%!"
- a.offset
- (Pretty.print_array ~sep:", " (fun fmt x ->
- if x==a.dummy then
- Format.fprintf fmt "%s" "D"
- else
- Format.fprintf fmt "%s" "E")) a.line
+ let create a = create_with_level 1 a
let add a i v =
if a.offset == ~-1 then a.offset <- i;
if i < offset then begin (* bottom resize *)
let pad = offset - i in
let nlen = len + pad in
- let narray = Array.create nlen a.dummy in
+ let narray = Array.make nlen a.dummy in
for j = 0 to len - 1 do
narray.(j+pad) <- a.line.(j)
done;
end else begin (* top resize *)
(* preventively allocate the space for the following elements *)
let nlen = ((i - offset + 1) lsl 1) + 1 in
- let narray = Array.create nlen a.dummy in
+ let narray = Array.make nlen a.dummy in
for j = 0 to len - 1 do
narray.(j) <- a.line.(j);
done;
let find a i =
let idx = i - a.offset in
- let len = Array.length a.line in
- if idx >= 0 && idx < len then
- Array.unsafe_get a.line idx
- else a.dummy
+ if idx < 0 then a.dummy
+ else
+ let len = Array.length a.line in
+ if idx < len then
+ Array.unsafe_get a.line idx
+ else a.dummy
let dummy a = a.dummy
f (i+a.offset) v (v==a.dummy)
done
-
+ let stats a =
+ let d = dummy a in
+ let len = Array.length a.line in
+ let used = Array.fold_left (fun acc i ->
+ if i != d then acc+1 else acc) 0 a.line
+ in
+ len, used
end
module N2 =
struct
type 'a t = 'a N1.t N1.t
- let create a =
- let dummy1 = N1.create a in
- N1.create dummy1
+ let create_with_level level a =
+ let dummy1 = N1.create_with_level (level+1) a in
+ N1.create_with_level level dummy1
+
+ let create a = create_with_level 1 a
let add a i j v =
let line = N1.find a i in
- if line == a.N1.dummy then
- let nline = N1.create line.N1.dummy in
+ if line == N1.dummy a then
+ let nline = N1.create_with_level (a.N1.level+1) (N1.dummy line) in
N1.add a i nline;
N1.add nline j v
else
let find a i j =
let v = N1.find a i in
- if v == a.N1.dummy then v.N1.dummy
- else N1.find v j
+ if v != a.N1.dummy then N1.find v j
+ else v.N1.dummy
let dummy c = c.N1.dummy.N1.dummy
N1.iteri (f i) line.(i)
done
+ let stats a =
+ let d = a.N1.dummy in
+ let len, used =
+ Array.fold_left (fun ((alen,aused) as acc) i ->
+ if i != d then
+ let l, u = N1.stats i in
+ (alen+l, aused+u)
+ else
+ acc) (0, 0) a.N1.line
+ in
+ len, used
end
struct
type 'a t = 'a N2.t N1.t
- let create a =
- let dummy2 = N2.create a in
- N1.create dummy2
+ let create_with_level level a =
+ let dummy2 = N2.create_with_level (level+1) a in
+ N1.create_with_level (level) dummy2
+
+ let create a = create_with_level 1 a
+
let add a i j k v =
let line = N1.find a i in
if line == a.N1.dummy then
- let nline = N1.create line.N1.dummy in
+ let nline = N2.create_with_level (a.N1.level+1) (N2.dummy line) in
N1.add a i nline;
N2.add nline j k v
else
let find a i j k =
let v = N1.find a i in
- if v == a.N1.dummy then N2.dummy v
- else N2.find v j k
+ if v != a.N1.dummy then N2.find v j k
+ else N2.dummy v
let dummy a = N2.dummy a.N1.dummy
N2.iteri (f i) line.(i)
done
+ let stats a =
+ let d = a.N1.dummy in
+ let len, used =
+ Array.fold_left (fun ((alen,aused) as acc) i ->
+ if i != d then
+ let l, u = N2.stats i in
+ (alen+l, aused+u)
+ else
+ acc) (0, 0) a.N1.line
+ in
+ len, used
+
end
module N4 =
struct
type 'a t = 'a N3.t N1.t
- let create a =
- let dummy3 = N3.create a in
- N1.create dummy3
+ let create_with_level level a =
+ let dummy3 = N3.create_with_level (level+1) a in
+ N1.create_with_level (level) dummy3
+
+ let create a = create_with_level 1 a
+
let add a i j k l v =
let line = N1.find a i in
if line == N1.dummy a then
- let nline = N3.create (N3.dummy line) in
+ let nline = N3.create_with_level (a.N1.level+1) (N3.dummy line) in
N1.add a i nline;
N3.add nline j k l v
else
N1.iteri (fun i v _ ->
N3.iteri (fun j k l v2 b -> f i j k l v2 b) v ) a
+ let stats a =
+ let d = a.N1.dummy in
+ let len, used =
+ Array.fold_left (fun ((alen,aused) as acc) i ->
+ if i != d then
+ let l, u = N3.stats i in
+ (alen+l, aused+u)
+ else
+ acc) (0, 0) a.N1.line
+ in
+ len, used
+
end
module N5 =
struct
type 'a t = 'a N4.t N1.t
- let create a =
- let dummy4 = N4.create a in
- N1.create dummy4
+
+ let create_with_level level a =
+ let dummy4 = N4.create_with_level (level+1) a in
+ N1.create_with_level level dummy4
+
+ let create a = create_with_level 1 a
let add a i j k l m v =
let line = N1.find a i in
if line == (N1.dummy a) then
- let nline = N4.create (N4.dummy line) in
+ let nline = N4.create_with_level (a.N1.level+1) (N4.dummy line) in
N1.add a i nline;
N4.add nline j k l m v
else
N1.iteri (fun i v _ ->
N4.iteri (fun j k l m v2 b -> f i j k l m v2 b) v
) a
+
+
+ let stats a =
+ let d = a.N1.dummy in
+ let len, used =
+ Array.fold_left (fun ((alen,aused) as acc) i ->
+ if i != d then
+ let l, u = N4.stats i in
+ (alen+l, aused+u)
+ else
+ acc) (0, 0) a.N1.line
+ in
+ len, used
+
end
module N6 =
struct
- type 'a t = 'a N5.t N1.t
+ type 'a t = 'a N3.t N3.t
let create a =
- let dummy5 = N5.create a in
- N1.create dummy5
+ let dummy3 = N3.create a in
+ N3.create dummy3
let add a i j k l m n v =
- let line = N1.find a i in
- if line == N1.dummy a then
- let nline = N5.create (N5.dummy line) in
- N1.add a i nline;
- N5.add nline j k l m n v
+ let line = N3.find a i j k in
+ if line == N3.dummy a then
+ let nline = N3.create (N3.dummy line) in
+ N3.add a i j k nline;
+ N3.add nline l m n v
else
- N5.add line j k l m n v
+ N3.add line l m n v
let find a i j k l m n =
- let v = N1.find a i in
- if v == N1.dummy a then N5.dummy v
- else N5.find v j k l m n
+ let v = N3.find a i j k in
+ if v == N3.dummy a then N3.dummy v
+ else N3.find v l m n
- let dummy a = N5.dummy (N1.dummy a)
+ let dummy a = N3.dummy (N3.dummy a)
let iteri f a =
- N1.iteri (fun i v _ ->
- N5.iteri (fun j k l m n v2 b -> f i j k l m n v2 b) v
+ N3.iteri (fun i j k v _ ->
+ N3.iteri (fun l m n v2 b -> f i j k l m n v2 b) v
) a
+
+ let stats a = assert false
end
projects / tatoo.git / blobdiff