/in/foo.cc: In function 'int main()':
/in/foo.cc:11:10: error: could not convert 'test.std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=<char, std::char_traits<char>, std::allocator<char> >(((const char*)"\000"))' from 'std::__cxx11::basic_string<char>' to 'bool'
   if(test="\0") break;
      ~~~~^~~~~