foo.cc:20:31: error: duplicate ‘const’
   20 |         Complex(const Complex const* pObj)
      |                               ^~~~~
      |                               -----
foo.cc: In function ‘std::ostream operator<<(std::ostream&, const Complex&)’:
foo.cc:57:24: error: use of deleted function ‘std::basic_ostream<_CharT, _Traits>::basic_ostream(const std::basic_ostream<_CharT, _Traits>&) [with _CharT = char; _Traits = std::char_traits<char>]’
   57 |                 return out;
      |                        ^~~
In file included from iostream:41:
/nix/gcc-13.2.0/include/c++/13.2.0/ostream:438:7: note: declared here
  438 |       basic_ostream(const basic_ostream&) = delete;
      |       ^~~~~~~~~~~~~