test_callbacks.py 文件源码

def test_issue_8959_a(self):
        from ctypes.util import find_library
        libc_path = find_library("c")
        if not libc_path:
            return # cannot test
        libc = CDLL(libc_path)

        @CFUNCTYPE(c_int, POINTER(c_int), POINTER(c_int))
        def cmp_func(a, b):
            return a[0] - b[0]

        array = (c_int * 5)(5, 1, 99, 7, 33)

        libc.qsort(array, len(array), sizeof(c_int), cmp_func)
        self.assertEqual(array[:], [1, 5, 7, 33, 99])