/in/foo.cc: In function 'bool cmp(data, data)':
/in/foo.cc:14:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
  if(x.x!=y.x) return x.x>y.x; return x.id<y.id;
  ^~
/in/foo.cc:14:31: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
  if(x.x!=y.x) return x.x>y.x; return x.id<y.id;
                               ^~~~~~