/in/foo.cc: In function 'int main()':
/in/foo.cc:12:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int i = 0; i < onelineStr.length(); i++)
                           ^
/in/foo.cc:33:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < inputStr.length(); i++)
                       ^
/in/foo.cc:88:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < inputStr.length(); i++)
                       ^