pypol/islhelper.py

   1 import ctypes, ctypes.util
   2
   3 from . import _islhelper
   4 from ._islhelper import isl_basic_set_constraints, isl_set_basic_sets
   5
   6
   7 __all__ = [
   8     'libisl',
   9     'isl_version',
  10     'mainctx',
  11     'isl_val_to_int',
  12     'isl_basic_set_to_str', 'isl_basic_set_constraints',
  13     'isl_set_to_str', 'isl_set_basic_sets',
  14 ]
  15
  16
  17 libisl = ctypes.CDLL(ctypes.util.find_library('isl'))
  18 libisl.isl_dim_set = _islhelper.dim_set
  19
  20 libisl.isl_version.restype = ctypes.c_char_p
  21 isl_version = libisl.isl_version().decode().strip()[len('isl-'):]
  22
  23
  24 mainctx = libisl.isl_ctx_alloc()
  25
  26
  27 libisl.isl_printer_get_str.restype = ctypes.c_char_p
  28
  29 def isl_val_to_int(islval):
  30     islpr = libisl.isl_printer_to_str(mainctx)
  31     islpr = libisl.isl_printer_print_val(islpr, islval)
  32     string = libisl.isl_printer_get_str(islpr).decode()
  33     return int(string)
  34
  35 def isl_basic_set_to_str(islbset):
  36     islpr = libisl.isl_printer_to_str(mainctx)
  37     islpr = libisl.isl_printer_print_basic_set(islpr, islbset)
  38     string = libisl.isl_printer_get_str(islpr).decode()
  39     return string
  40
  41 def isl_set_to_str(islset):
  42     islpr = libisl.isl_printer_to_str(mainctx)
  43     islpr = libisl.isl_printer_print_set(islpr, islset)
  44     string = libisl.isl_printer_get_str(islpr).decode()
  45     return string