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name-rev: respect const qualifier

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Keep the const qualifier of the first parameter of get_rev_name() even
when casting the object pointer to a commit pointer, and further for the
parameter of get_commit_rev_name(), as all these uses are read-only.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2020-02-04 22:16:10 +01:00 committed by Junio C Hamano
parent 71620ca86c
commit 36d2419c9a
1 changed files with 3 additions and 3 deletions
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6
builtin/name-rev.c
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@ -32,7 +32,7 @@ static struct commit_rev_name rev_names;
/* How many generations are maximally preferred over _one_ merge traversal? */
#define MERGE_TRAVERSAL_WEIGHT 65535
static struct rev_name *get_commit_rev_name(struct commit *commit)
static struct rev_name *get_commit_rev_name(const struct commit *commit)
{
struct rev_name **slot = commit_rev_name_peek(&rev_names, commit);
@ -357,11 +357,11 @@ static const char *get_exact_ref_match(const struct object *o)
static const char *get_rev_name(const struct object *o, struct strbuf *buf)
{
struct rev_name *n;
struct commit *c;
const struct commit *c;
if (o->type != OBJ_COMMIT)
return get_exact_ref_match(o);
c = (struct commit *) o;
c = (const struct commit *) o;
n = get_commit_rev_name(c);
if (!n)
return NULL;