/in/foo.cc: In function 'int main()':
/in/foo.cc:55:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
55 | if (pos_in_num >= numToString(current_num).length()) {
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.cc:63:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
63 | if (pos_in_num >= current_str.length() ||
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~