code: def test_longdouble_precision_improved():
      # Just check that this can only be True on Windows
  
      # This previously used distutils.ccompiler.get_default_compiler to check for msvc
      # In https://github.com/python/cpython/blob/3467991/Lib/distutils/ccompiler.py#L919-L956
      # we see that this was implied by os.name == 'nt', so we can remove this deprecated
      # call.
      # However, there may be detectable conditions in Windows where we would expect this
      # to be False as well.
      if os.name != "nt":
          assert not longdouble_precision_improved()
  
file_path: nibabel/nibabel/tests/test_casting.py
imports: import os
  from platform import machine
  import numpy
  import pytest
  from numpy.testing import assert_array_equal
  from ..casting import CastingError, able_int_type, best_float, float_to_int, floor_log2, int_abs, longdouble_precision_improved, sctypes, shared_range, ulp
  from ..testing import suppress_warnings
label_desc: Use image node_id 9 for calling a global function with example usage: test_longdouble_precision_improved() without return types