Re: [PATCH 01/34] ptrlist: simplify DO_FOR_EACH/DO_END_FOR_EACH

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On Fri, Jul 7, 2017 at 6:39 AM, Luc Van Oostenryck
<luc.vanoostenryck@xxxxxxxxx> wrote:
> -       if (__head) {                                                                   \
> -               do { int __nr;                                                          \
> -                       for (__nr = 0; __nr < __list->nr; __nr++) {                     \
> -                               do {                                                    \
> -                                       ptr = PTR_ENTRY(__list,__nr);                   \
> -                                       do {
> +       if (!__head) break;                                                             \
> +       do { int __nr;                                                                  \
> +               for (__nr = 0; __nr < __list->nr; __nr++) {                             \
> +                       ptr = PTR_ENTRY(__list,__nr);                                   \
>
>  #define DO_END_FOR_EACH(ptr, __head, __list, __nr)                                     \
> -                                       } while (0);                                    \
> -                               } while (0);                                            \
> -                       }                                                               \
> -               } while ((__list = __list->next) != __head);                            \
> -       }                                                                               \
> +               }                                                                       \
> +       } while ((__list = __list->next) != __head);                                    \
>  } while (0)

I think the extra "do {} while (0)" is there to prevent the FOR_EACH
paring with END_FOR_EACH_REVERSE() and vise versa.

Chris
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