code: def CCompiler_cxx_compiler(self):
      """
      Return the C++ compiler.
  
      Parameters
      ----------
      None
  
      Returns
      -------
      cxx : class instance
          The C++ compiler, as a `CCompiler` instance.
  
      """
      if self.compiler_type in ("msvc", "intelw", "intelemw"):
          return self
  
      cxx = copy(self)
      cxx.compiler_cxx = cxx.compiler_cxx
      cxx.compiler_so = [cxx.compiler_cxx[0]] + sanitize_cxx_flags(
          cxx.compiler_so[1:]
      )
      if (
          sys.platform.startswith(("aix", "os400"))
          and "ld_so_aix" in cxx.linker_so[0]
      ):
          # AIX needs the ld_so_aix script included with Python
          cxx.linker_so = [
              cxx.linker_so[0],
              cxx.compiler_cxx[0],
          ] + cxx.linker_so[2:]
      if sys.platform.startswith("os400"):
          # This is required by i 7.4 and prievous for PRId64 in printf() call.
          cxx.compiler_so.append("-D__STDC_FORMAT_MACROS")
          # This a bug of gcc10.3, which failed to handle the TLS init.
          cxx.compiler_so.append("-fno-extern-tls-init")
          cxx.linker_so.append("-fno-extern-tls-init")
      else:
          cxx.linker_so = [cxx.compiler_cxx[0]] + cxx.linker_so[1:]
      return cxx
  
imports: import os
  import re
  import sys
  import platform
  import shlex
  import time
  import subprocess
  from copy import copy
  from pathlib import Path
  from distutils import ccompiler
  from distutils.ccompiler import compiler_class, gen_lib_options, get_default_compiler, new_compiler, CCompiler
  from distutils.errors import DistutilsExecError, DistutilsModuleError, DistutilsPlatformError, CompileError, UnknownFileError
  from distutils.sysconfig import customize_compiler
  from distutils.version import LooseVersion
  from numpy.distutils import log
  from numpy.distutils.exec_command import filepath_from_subprocess_output, forward_bytes_to_stdout
  from numpy.distutils.misc_util import cyg2win32, is_sequence, mingw32, get_num_build_jobs, _commandline_dep_string, sanitize_cxx_flags
  import threading
label_desc: Use image node_id 13 for calling a global function with example usage: CCompiler_cxx_compiler() and returns: cxx, self