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[linpy.git] / linpy / islhelper.py
1 # Copyright 2014 MINES ParisTech
2 #
3 # This file is part of LinPy.
4 #
5 # LinPy is free software: you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation, either version 3 of the License, or
8 # (at your option) any later version.
9 #
10 # LinPy is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
14 #
15 # You should have received a copy of the GNU General Public License
16 # along with LinPy. If not, see <http://www.gnu.org/licenses/>.
17
18 import ctypes, ctypes.util
19
20 from . import _islhelper
21 from ._islhelper import *
22
23
24 __all__ = [
25 'libisl',
26 'isl_version',
27 'mainctx',
28 'isl_val_to_int',
29 'isl_basic_set_to_str', 'isl_basic_set_constraints',
30 'isl_set_to_str', 'isl_set_basic_sets',
31 'isl_set_points',
32 'isl_vertices_vertices',
33 'isl_multi_aff_to_str',
34 ]
35
36
37 libisl = ctypes.CDLL(ctypes.util.find_library('isl'))
38 libisl.isl_dim_set = _islhelper.dim_set
39
40 libisl.isl_version.restype = ctypes.c_char_p
41 isl_version = libisl.isl_version().decode().strip()[len('isl-'):]
42
43
44 mainctx = libisl.isl_ctx_alloc()
45
46
47 libisl.isl_printer_get_str.restype = ctypes.c_char_p
48
49 def isl_val_to_int(islval):
50 islpr = libisl.isl_printer_to_str(mainctx)
51 islpr = libisl.isl_printer_print_val(islpr, islval)
52 string = libisl.isl_printer_get_str(islpr).decode()
53 return int(string)
54
55 def isl_basic_set_to_str(islbset):
56 islpr = libisl.isl_printer_to_str(mainctx)
57 islpr = libisl.isl_printer_print_basic_set(islpr, islbset)
58 string = libisl.isl_printer_get_str(islpr).decode()
59 return string
60
61 def isl_set_to_str(islset):
62 islpr = libisl.isl_printer_to_str(mainctx)
63 islpr = libisl.isl_printer_print_set(islpr, islset)
64 string = libisl.isl_printer_get_str(islpr).decode()
65 return string
66
67 def isl_multi_aff_to_str(islmaff):
68 islpr = libisl.isl_printer_to_str(mainctx)
69 islpr = libisl.isl_printer_print_multi_aff(islpr, islmaff)
70 string = libisl.isl_printer_get_str(islpr).decode()
71 return string