1 (***********************************************************************)
5 (* Kim Nguyen, LRI UMR8623 *)
6 (* Université Paris-Sud & CNRS *)
8 (* Copyright 2010-2013 Université Paris-Sud and Centre National de la *)
9 (* Recherche Scientifique. All rights reserved. This file is *)
10 (* distributed under the terms of the GNU Lesser General Public *)
11 (* License, with the special exception on linking described in file *)
14 (***********************************************************************)
19 mutable line : 'a array;
24 type 'a index = int -> 'a
26 let create_with_level level a = {
27 line = Array.create 0 a;
32 let create a = create_with_level 1 a
35 if a.offset == ~-1 then a.offset <- i;
36 let offset = a.offset in
37 let len = Array.length a.line in
38 if i >= offset && i < offset + len then
39 a.line.(i - offset) <- v
41 if i < offset then begin (* bottom resize *)
42 let pad = offset - i in
43 let nlen = len + pad in
44 let narray = Array.create nlen a.dummy in
45 for j = 0 to len - 1 do
46 narray.(j+pad) <- a.line.(j)
51 end else begin (* top resize *)
52 (* preventively allocate the space for the following elements *)
53 let nlen = ((i - offset + 1) lsl 1) + 1 in
54 let narray = Array.create nlen a.dummy in
55 for j = 0 to len - 1 do
56 narray.(j) <- a.line.(j);
58 narray.(i - offset) <- v;
63 let idx = i - a.offset in
64 if idx < 0 then a.dummy
66 let len = Array.length a.line in
68 Array.unsafe_get a.line idx
75 if a.offset == ~-1 then () else
76 for i = 0 to Array.length line - 1 do
78 f (i+a.offset) v (v==a.dummy)
83 let len = Array.length a.line in
84 let used = Array.fold_left (fun acc i ->
85 if i != d then acc+1 else acc) 0 a.line
92 type 'a t = 'a N1.t N1.t
93 let create_with_level level a =
94 let dummy1 = N1.create_with_level (level+1) a in
95 N1.create_with_level level dummy1
97 let create a = create_with_level 1 a
100 let line = N1.find a i in
101 if line == N1.dummy a then
102 let nline = N1.create_with_level (a.N1.level+1) (N1.dummy line) in
110 let v = N1.find a i in
111 if v != a.N1.dummy then N1.find v j
115 let dummy c = c.N1.dummy.N1.dummy
118 let line = a.N1.line in
119 if a.N1.offset == ~-1 then () else
120 for i = 0 to Array.length line - 1 do
121 N1.iteri (f i) line.(i)
125 let d = a.N1.dummy in
127 Array.fold_left (fun ((alen,aused) as acc) i ->
129 let l, u = N1.stats i in
132 acc) (0, 0) a.N1.line
140 type 'a t = 'a N2.t N1.t
142 let create_with_level level a =
143 let dummy2 = N2.create_with_level (level+1) a in
144 N1.create_with_level (level) dummy2
146 let create a = create_with_level 1 a
150 let line = N1.find a i in
151 if line == a.N1.dummy then
152 let nline = N2.create_with_level (a.N1.level+1) (N2.dummy line) in
159 let v = N1.find a i in
160 if v != a.N1.dummy then N2.find v j k
164 let dummy a = N2.dummy a.N1.dummy
166 let line = a.N1.line in
167 if a.N1.offset == ~-1 then () else
168 for i = 0 to Array.length line - 1 do
169 N2.iteri (f i) line.(i)
173 let d = a.N1.dummy in
175 Array.fold_left (fun ((alen,aused) as acc) i ->
177 let l, u = N2.stats i in
180 acc) (0, 0) a.N1.line
188 type 'a t = 'a N3.t N1.t
190 let create_with_level level a =
191 let dummy3 = N3.create_with_level (level+1) a in
192 N1.create_with_level (level) dummy3
194 let create a = create_with_level 1 a
197 let add a i j k l v =
198 let line = N1.find a i in
199 if line == N1.dummy a then
200 let nline = N3.create_with_level (a.N1.level+1) (N3.dummy line) in
207 let v = N1.find a i in
208 if v == (N1.dummy a) then N3.dummy v
212 let dummy a = N3.dummy (N1.dummy a)
214 N1.iteri (fun i v _ ->
215 N3.iteri (fun j k l v2 b -> f i j k l v2 b) v ) a
218 let d = a.N1.dummy in
220 Array.fold_left (fun ((alen,aused) as acc) i ->
222 let l, u = N3.stats i in
225 acc) (0, 0) a.N1.line
233 type 'a t = 'a N4.t N1.t
236 let create_with_level level a =
237 let dummy4 = N4.create_with_level (level+1) a in
238 N1.create_with_level level dummy4
240 let create a = create_with_level 1 a
242 let add a i j k l m v =
243 let line = N1.find a i in
244 if line == (N1.dummy a) then
245 let nline = N4.create_with_level (a.N1.level+1) (N4.dummy line) in
247 N4.add nline j k l m v
249 N4.add line j k l m v
251 let find a i j k l m =
252 let v = N1.find a i in
253 if v == (N1.dummy a) then N4.dummy v
254 else N4.find v j k l m
257 let dummy a = N4.dummy (N1.dummy a)
259 N1.iteri (fun i v _ ->
260 N4.iteri (fun j k l m v2 b -> f i j k l m v2 b) v
265 let d = a.N1.dummy in
267 Array.fold_left (fun ((alen,aused) as acc) i ->
269 let l, u = N4.stats i in
272 acc) (0, 0) a.N1.line
280 type 'a t = 'a N3.t N3.t
283 let dummy3 = N3.create a in
286 let add a i j k l m n v =
287 let line = N3.find a i j k in
288 if line == N3.dummy a then
289 let nline = N3.create (N3.dummy line) in
290 N3.add a i j k nline;
295 let find a i j k l m n =
296 let v = N3.find a i j k in
297 if v == N3.dummy a then N3.dummy v
301 let dummy a = N3.dummy (N3.dummy a)
303 N3.iteri (fun i j k v _ ->
304 N3.iteri (fun l m n v2 b -> f i j k l m n v2 b) v
307 let stats a = assert false