[PATCH 4/4] object-file.c: LLP64 compatibility, upcast unity for left shift

[Philip Oakley <philipoakley@iee.email>]

Visual Studio reports C4334 "was 64-bit shift intended" warning because
of size miss-match.

Promote unity to the matching type to fit with the assignment.

Signed-off-by: Philip Oakley <philipoakley@iee.email>

---

This cannot be applied to the maint-2.32 branch as the earlier René Scharfe
patch had been, because the original sha1-file.c, to which the backport
would apply, has been renamed in e5afd4449d (object-file.c: rename
from sha1-file.c, 2020-12-31) which was merged in 8b327f1784
(Merge branch 'ma/sha1-is-a-hash', 2021-01-15)
---
 object-file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/object-file.c b/object-file.c
index c3d866a287..da8821cb91 100644
--- a/object-file.c
+++ b/object-file.c
@@ -2425,7 +2425,7 @@ 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 = 1u << (subdir_nr % word_bits);
+	size_t mask = (size_t)1u << (subdir_nr % word_bits);
 	uint32_t *bitmap;
 
 	if (subdir_nr < 0 ||
-- 
2.34.0.rc1.windows.1.4.ga126985b17