/in/foo.cc: In function 'int main()':
/in/foo.cc:23:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(r==0)
     ^~
/in/foo.cc:25:6: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
      aa=bb;bb=r;
      ^~