"""
The Python example to call the shared library

Author:   Cheng Maohua
Email:    cmh@seu.edu.cn

"""
from platform import system
from ctypes import CFUNCTYPE, cdll, c_double, c_int

prototype = CFUNCTYPE(c_double, c_double, c_double, c_int)
cdll_names = {'Linux': '../target/release/libseuif97.so',
              'Windows': '../target/release/seuif97.dll'}

osplat = system()
if (osplat == 'Linux'):
    flib = cdll.LoadLibrary(cdll_names[osplat])
elif (osplat == 'Windows'):
    flib = cdll.LoadLibrary(cdll_names[osplat])


def pt(p, t, pid):
    f = prototype(("pt", flib),)
    result = f(p, t, pid)
    return result


p = 16
t = 535.1
h = pt(p, t, 4)
print("h=", h)