/in/foo.cc: In function 'int main()':
/in/foo.cc:5:11: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized]
   int a,b,c;
           ^
/in/foo.cc:5:9: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized]
   int a,b,c;
         ^