blob: c2115dfb0fd84fb0141ff6ad049d27aef375518f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
(* Library of useful Caml <-> Coq conversions *)
open Datatypes
open CList
open BinPos
open BinInt
(* Integers *)
let rec camlint_of_positive = function
| Coq_xI p -> Int32.add (Int32.shift_left (camlint_of_positive p) 1) 1l
| Coq_xO p -> Int32.shift_left (camlint_of_positive p) 1
| Coq_xH -> 1l
let camlint_of_z = function
| Z0 -> 0l
| Zpos p -> camlint_of_positive p
| Zneg p -> Int32.neg (camlint_of_positive p)
let camlint_of_coqint : Integers.int -> int32 = camlint_of_z
let rec camlint_of_nat = function
| O -> 0
| S n -> camlint_of_nat n + 1
let rec nat_of_camlint n =
assert (n >= 0l);
if n = 0l then O else S (nat_of_camlint (Int32.sub n 1l))
let rec positive_of_camlint n =
if n = 0l then assert false else
if n = 1l then Coq_xH else
if Int32.logand n 1l = 0l
then Coq_xO (positive_of_camlint (Int32.shift_right_logical n 1))
else Coq_xI (positive_of_camlint (Int32.shift_right_logical n 1))
let z_of_camlint n =
if n = 0l then Z0 else
if n > 0l then Zpos (positive_of_camlint n)
else Zneg (positive_of_camlint (Int32.neg n))
let coqint_of_camlint : int32 -> Integers.int = z_of_camlint
(* Strings *)
let atom_of_string = (Hashtbl.create 17 : (string, positive) Hashtbl.t)
let string_of_atom = (Hashtbl.create 17 : (positive, string) Hashtbl.t)
let next_atom = ref Coq_xH
let intern_string s =
try
Hashtbl.find atom_of_string s
with Not_found ->
let a = !next_atom in
next_atom := coq_Psucc !next_atom;
Hashtbl.add atom_of_string s a;
Hashtbl.add string_of_atom a s;
a
let extern_atom a =
try
Hashtbl.find string_of_atom a
with Not_found ->
Printf.sprintf "<unknown atom %ld>" (camlint_of_positive a)
(* Lists *)
let rec coqlist_iter f = function
Coq_nil -> ()
| Coq_cons(a,l) -> f a; coqlist_iter f l
(* Helpers *)
let rec list_iter f = function
[] -> ()
| a::l -> f a; list_iter f l
let rec list_memq x = function
[] -> false
| a::l -> a == x || list_memq x l
let rec list_exists p = function
[] -> false
| a::l -> p a || list_exists p l
let rec list_filter p = function
[] -> []
| x :: l -> if p x then x :: list_filter p l else list_filter p l
let rec length_coqlist = function
| Coq_nil -> 0
| Coq_cons (x, l) -> 1 + length_coqlist l
let array_of_coqlist = function
| Coq_nil -> [||]
| Coq_cons(hd, tl) as l ->
let a = Array.create (length_coqlist l) hd in
let rec fill i = function
| Coq_nil -> a
| Coq_cons(hd, tl) -> a.(i) <- hd; fill (i + 1) tl in
fill 1 tl
(* Timing facility *)
(*
let timers = (Hashtbl.create 9 : (string, float) Hashtbl.t)
let add_to_timer name time =
let old = try Hashtbl.find timers name with Not_found -> 0.0 in
Hashtbl.replace timers name (old +. time)
let time name fn arg =
let start = Unix.gettimeofday() in
try
let res = fn arg in
add_to_timer name (Unix.gettimeofday() -. start);
res
with x ->
add_to_timer name (Unix.gettimeofday() -. start);
raise x
let print_timers () =
Hashtbl.iter
(fun name time -> Printf.printf "%-20s %.3f\n" name time)
timers
let _ = at_exit print_timers
*)
|
