/in/foo.cc: In function 'int bdhws(int)':
/in/foo.cc:24:2: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if(x==y) return 1;
  ^~
/in/foo.cc: In function 'int main()':
/in/foo.cc:24:2: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if(x==y) return 1;
  ^~
/in/foo.cc:15:6: note: 'y' was declared here
  int y;
      ^