tools/coccinelle/argv_find.cocci

   1 @@
   2 identifier idx;
   3 identifier argv;
   4 identifier argc;
   5 expression e1;
   6 expression e2;
   7 @@
   8
   9 - argv_find(argv, argc, e1, &idx);
  10   if (
  11 -   idx
  12 +   argv_find(argv, argc, e1, &idx)
  13   )
  14   {
  15     e2;
  16   }