/in/foo.cc: In function 'char TwoKeyAlpDown(char)':
/in/foo.cc:16:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int TwoKeyNumDown(char, int)':
/in/foo.cc:27:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^