Hi.  Isn't it good practice to parenthesize the arguments of C macros?
So TO_BOOL would be defined as

#define TO_BOOL(thing) (!! (thing))

In fact, why not just cast to bool?

Regards

David Bremner <da...@tethera.net> writes:

> The slightly annoying reason to do this is because uncrustify can't
> handle '!! foo' sensibly. The less annoying reason is that it helps
> understand what the code does.
> ---
>  command-line-arguments.c | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/command-line-arguments.c b/command-line-arguments.c
> index d64aa85b..5f0607be 100644
> --- a/command-line-arguments.c
> +++ b/command-line-arguments.c
> @@ -4,6 +4,8 @@
>  #include "error_util.h"
>  #include "command-line-arguments.h"
>  
> +#define TO_BOOL(thing) (!! thing)
> +
>  typedef enum {
>      OPT_FAILED, /* false */
>      OPT_OK, /* good */
> @@ -120,13 +122,13 @@ _process_string_arg (const notmuch_opt_desc_t 
> *arg_desc, char next, const char *
>  static int _opt_set_count (const notmuch_opt_desc_t *opt_desc)
>  {
>      return
> -     !!opt_desc->opt_inherit +
> -     !!opt_desc->opt_bool +
> -     !!opt_desc->opt_int +
> -     !!opt_desc->opt_keyword +
> -     !!opt_desc->opt_flags +
> -     !!opt_desc->opt_string +
> -     !!opt_desc->opt_position;
> +     TO_BOOL (opt_desc->opt_inherit) +
> +     TO_BOOL (opt_desc->opt_bool) +
> +     TO_BOOL (opt_desc->opt_int) +
> +     TO_BOOL (opt_desc->opt_keyword) +
> +     TO_BOOL (opt_desc->opt_flags) +
> +     TO_BOOL (opt_desc->opt_string) +
> +     TO_BOOL (opt_desc->opt_position);
>  }
>  
>  /* Return true if opt_desc is valid. */
> -- 
> 2.20.1
>
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