Rename pypol into LinPy

[linpy.git] / linpy / islhelper.py

diff --git a/linpy/islhelper.py b/linpy/islhelper.py
new file mode 100644 (file)
index 0000000..c38e734
--- /dev/null
+++ b/linpy/islhelper.py
@@ -0,0 +1,71 @@
+# Copyright 2014 MINES ParisTech
+#
+# This file is part of LinPy.
+#
+# LinPy is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# LinPy is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LinPy.  If not, see <http://www.gnu.org/licenses/>.
+
+import ctypes, ctypes.util
+
+from . import _islhelper
+from ._islhelper import *
+
+
+__all__ = [
+    'libisl',
+    'isl_version',
+    'mainctx',
+    'isl_val_to_int',
+    'isl_basic_set_to_str', 'isl_basic_set_constraints',
+    'isl_set_to_str', 'isl_set_basic_sets',
+    'isl_set_points',
+    'isl_vertices_vertices',
+    'isl_multi_aff_to_str',
+]
+
+
+libisl = ctypes.CDLL(ctypes.util.find_library('isl'))
+libisl.isl_dim_set = _islhelper.dim_set
+
+libisl.isl_version.restype = ctypes.c_char_p
+isl_version = libisl.isl_version().decode().strip()[len('isl-'):]
+
+
+mainctx = libisl.isl_ctx_alloc()
+
+
+libisl.isl_printer_get_str.restype = ctypes.c_char_p
+
+def isl_val_to_int(islval):
+    islpr = libisl.isl_printer_to_str(mainctx)
+    islpr = libisl.isl_printer_print_val(islpr, islval)
+    string = libisl.isl_printer_get_str(islpr).decode()
+    return int(string)
+
+def isl_basic_set_to_str(islbset):
+    islpr = libisl.isl_printer_to_str(mainctx)
+    islpr = libisl.isl_printer_print_basic_set(islpr, islbset)
+    string = libisl.isl_printer_get_str(islpr).decode()
+    return string
+
+def isl_set_to_str(islset):
+    islpr = libisl.isl_printer_to_str(mainctx)
+    islpr = libisl.isl_printer_print_set(islpr, islset)
+    string = libisl.isl_printer_get_str(islpr).decode()
+    return string
+
+def isl_multi_aff_to_str(islmaff):
+    islpr = libisl.isl_printer_to_str(mainctx)
+    islpr = libisl.isl_printer_print_multi_aff(islpr, islmaff)
+    string = libisl.isl_printer_get_str(islpr).decode()
+    return string