/in/foo.cc: In function 'int cc(int, char, int)':
/in/foo.cc:38:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int chg(char)':
/in/foo.cc:58:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^