# ----------------------------------------------------------------------
#   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
#   https://www.lammps.org/ Sandia National Laboratories
#   Steve Plimpton, sjplimp@sandia.gov
#
#   Copyright (2003) Sandia Corporation.  Under the terms of Contract
#   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
#   certain rights in this software.  This software is distributed under
#   the GNU General Public License.
#
#   See the README file in the top-level LAMMPS directory.
# -------------------------------------------------------------------------

# various symbolic constants to be used
# in certain calls to select data formats
LAMMPS_AUTODETECT = None
LAMMPS_INT    = 0
LAMMPS_INT_2D  = 1
LAMMPS_DOUBLE = 2
LAMMPS_DOUBLE_2D = 3
LAMMPS_INT64 = 4
LAMMPS_INT64_2D = 5
LAMMPS_STRING = 6

# these must be kept in sync with the enums in library.h
LMP_STYLE_GLOBAL = 0
LMP_STYLE_ATOM   = 1
LMP_STYLE_LOCAL  = 2

LMP_TYPE_SCALAR  = 0
LMP_TYPE_VECTOR  = 1
LMP_TYPE_ARRAY   = 2
LMP_SIZE_VECTOR  = 3
LMP_SIZE_ROWS    = 4
LMP_SIZE_COLS    = 5

LMP_VAR_EQUAL = 0
LMP_VAR_ATOM  = 1

# -------------------------------------------------------------------------

def get_ctypes_int(size):
  from ctypes import c_int, c_int32, c_int64
  if size == 4:
    return c_int32
  elif size == 8:
    return c_int64
  return c_int
