main.cpp: In function ‘int main()’:
main.cpp:13:47: error: no match for ‘operator=’ (operand types are ‘std::ostream’ {aka ‘std::basic_ostream<char>’} and ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’})
   13 |         placeToOutput = std::ifstream(filename);
      |                                               ^
In file included from /usr/include/c++/10.1.0/iostream:39,
                 from main.cpp:1:
/usr/include/c++/10.1.0/ostream:408:7: note: candidate: ‘std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator=(std::basic_ostream<_CharT, _Traits>&&) [with _CharT = char; _Traits = std::char_traits<char>]’
  408 |       operator=(basic_ostream&& __rhs)
      |       ^~~~~~~~
/usr/include/c++/10.1.0/ostream:408:33: note:   no known conversion for argument 1 from ‘std::ifstream’ {aka ‘std::basic_ifstream<char>’} to ‘std::basic_ostream<char>&&’
  408 |       operator=(basic_ostream&& __rhs)
      |                 ~~~~~~~~~~~~~~~~^~~~~