Re: [PATCH] rangeset: "has" and "is" functions return boolean

[Ian Campbell <ian.campbell@citrix.com>]

On Tue, 2015-06-09 at 09:47 +0100, Jan Beulich wrote:
> Additionally rangeset_is_empty()'s sole parameter can be const.

Isn't that true of all/most of the others touched here too? (Once the
underlying range_* list manipulations are made const correct).

If you do decide to go further then there is a "implemnetation" typo in
there too.

> Signed-off-by: Jan Beulich <jbeulich@suse.com>

So far as it goes:

Acked-by: Ian Campbell <ian.campbell@citrix.com>

> --- a/xen/common/rangeset.c
> +++ b/xen/common/rangeset.c
> @@ -248,11 +248,11 @@ int rangeset_remove_range(
>      return rc;
>  }
>  
> -int rangeset_contains_range(
> +bool_t rangeset_contains_range(
>      struct rangeset *r, unsigned long s, unsigned long e)
>  {
>      struct range *x;
> -    int contains;
> +    bool_t contains;
>  
>      ASSERT(s <= e);
>  
> @@ -264,11 +264,11 @@ int rangeset_contains_range(
>      return contains;
>  }
>  
> -int rangeset_overlaps_range(
> +bool_t rangeset_overlaps_range(
>      struct rangeset *r, unsigned long s, unsigned long e)
>  {
>      struct range *x;
> -    int overlaps;
> +    bool_t overlaps;
>  
>      ASSERT(s <= e);
>  
> @@ -310,14 +310,14 @@ int rangeset_remove_singleton(
>      return rangeset_remove_range(r, s, s);
>  }
>  
> -int rangeset_contains_singleton(
> +bool_t rangeset_contains_singleton(
>      struct rangeset *r, unsigned long s)
>  {
>      return rangeset_contains_range(r, s, s);
>  }
>  
> -int rangeset_is_empty(
> -    struct rangeset *r)
> +bool_t rangeset_is_empty(
> +    const struct rangeset *r)
>  {
>      return ((r == NULL) || list_empty(&r->range_list));
>  }
> --- a/xen/include/xen/rangeset.h
> +++ b/xen/include/xen/rangeset.h
> @@ -10,6 +10,8 @@
>  #ifndef __XEN_RANGESET_H__
>  #define __XEN_RANGESET_H__
>  
> +#include <xen/types.h>
> +
>  struct domain;
>  struct rangeset;
>  
> @@ -50,17 +52,17 @@ void rangeset_limit(
>  #define _RANGESETF_prettyprint_hex 0
>  #define RANGESETF_prettyprint_hex  (1U << _RANGESETF_prettyprint_hex)
>  
> -int __must_check rangeset_is_empty(
> -    struct rangeset *r);
> +bool_t __must_check rangeset_is_empty(
> +    const struct rangeset *r);
>  
>  /* Add/remove/query a numeric range. */
>  int __must_check rangeset_add_range(
>      struct rangeset *r, unsigned long s, unsigned long e);
>  int __must_check rangeset_remove_range(
>      struct rangeset *r, unsigned long s, unsigned long e);
> -int __must_check rangeset_contains_range(
> +bool_t __must_check rangeset_contains_range(
>      struct rangeset *r, unsigned long s, unsigned long e);
> -int __must_check rangeset_overlaps_range(
> +bool_t __must_check rangeset_overlaps_range(
>      struct rangeset *r, unsigned long s, unsigned long e);
>  int rangeset_report_ranges(
>      struct rangeset *r, unsigned long s, unsigned long e,
> @@ -71,7 +73,7 @@ int __must_check rangeset_add_singleton(
>      struct rangeset *r, unsigned long s);
>  int __must_check rangeset_remove_singleton(
>      struct rangeset *r, unsigned long s);
> -int __must_check rangeset_contains_singleton(
> +bool_t __must_check rangeset_contains_singleton(
>      struct rangeset *r, unsigned long s);
>  
>  /* swap contents */
> 
> 
>