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authorLibravatar René Scharfe <l.s.r@web.de>2017-07-15 22:00:45 +0200
committerLibravatar Junio C Hamano <gitster@pobox.com>2017-07-17 14:54:56 -0700
commitf331ab9d4cb21942dcde6d879aaca6a1784e8cb6 (patch)
tree64203c98b322d7b468b2649df734a2a3ea443fc1 /builtin/pack-objects.c
parentadd MOVE_ARRAY (diff)
downloadtgif-f331ab9d4cb21942dcde6d879aaca6a1784e8cb6.tar.xz
use MOVE_ARRAY
Simplify the code for moving members inside of an array and make it more robust by using the helper macro MOVE_ARRAY. It calculates the size based on the specified number of elements for us and supports NULL pointers when that number is zero. Raw memmove(3) calls with NULL can cause the compiler to (over-eagerly) optimize out later NULL checks. This patch was generated with contrib/coccinelle/array.cocci and spatch (Coccinelle). Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin/pack-objects.c')
-rw-r--r--builtin/pack-objects.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index f4a8441fe9..e730b415bf 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -1298,9 +1298,8 @@ static int check_pbase_path(unsigned hash)
done_pbase_paths_alloc);
done_pbase_paths_num++;
if (pos < done_pbase_paths_num)
- memmove(done_pbase_paths + pos + 1,
- done_pbase_paths + pos,
- (done_pbase_paths_num - pos - 1) * sizeof(unsigned));
+ MOVE_ARRAY(done_pbase_paths + pos + 1, done_pbase_paths + pos,
+ done_pbase_paths_num - pos - 1);
done_pbase_paths[pos] = hash;
return 0;
}