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| author | René Scharfe <l.s.r@web.de> | 2021-08-06 17:53:47 (GMT) |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2021-08-11 17:19:56 (GMT) |
| commit | 581a3bb155c157094ca486e3a10c4a9b70c8f650 (patch) | |
| tree | 201ac43a308a316513b6557610a0adb56e5271d2 /object-file.c | |
| parent | dd3c8a72a2eaecf0c752a37e1f4ba4de59818e93 (diff) | |
| download | git-581a3bb155c157094ca486e3a10c4a9b70c8f650.zip git-581a3bb155c157094ca486e3a10c4a9b70c8f650.tar.gz git-581a3bb155c157094ca486e3a10c4a9b70c8f650.tar.bz2 | |
object-file: use unsigned arithmetic with bit mask
33f379eee6 (make object_directory.loose_objects_subdir_seen a bitmap,
2021-07-07) replaced a wasteful 256-byte array with a 32-byte array
and bit operations. The mask calculation shifts a literal 1 of type
int left by anything between 0 and 31. UndefinedBehaviorSanitizer
doesn't like that and reports:
object-file.c:2477:18: runtime error: left shift of 1 by 31 places cannot be represented in type 'int'
Make sure to use an unsigned 1 instead to avoid the issue.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'object-file.c')
| -rw-r--r-- | object-file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/object-file.c b/object-file.c index 35f3e7e..dcb1859 100644 --- a/object-file.c +++ b/object-file.c @@ -2463,7 +2463,7 @@ struct oidtree *odb_loose_cache(struct object_directory *odb, struct strbuf buf = STRBUF_INIT; size_t word_bits = bitsizeof(odb->loose_objects_subdir_seen[0]); size_t word_index = subdir_nr / word_bits; - size_t mask = 1 << (subdir_nr % word_bits); + size_t mask = 1u << (subdir_nr % word_bits); uint32_t *bitmap; if (subdir_nr < 0 || |