/in/foo.cc:12:15: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  A(char *Name="Noname", int sum1 = 0, int sum2 = 0)
               ^~~~~~~~
/in/foo.cc:19:23: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  void set(char *Name1="Noname", int sum1 = 0, int sum2 = 0)
                       ^~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:57:4: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
  A x;
    ^