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| author | René Scharfe <l.s.r@web.de> | 2017-07-15 22:00:45 +0200 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2017-07-17 14:54:56 -0700 |
| commit | f331ab9d4cb21942dcde6d879aaca6a1784e8cb6 (patch) | |
| tree | 64203c98b322d7b468b2649df734a2a3ea443fc1 /cache-tree.c | |
| parent | 578398071e45d296c3dc1de10acdbc15365e763f (diff) | |
| download | git-f331ab9d4cb21942dcde6d879aaca6a1784e8cb6.tar.gz | |
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 'cache-tree.c')
| -rw-r--r-- | cache-tree.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/cache-tree.c b/cache-tree.c index ec23d8c03d..2440d1dc89 100644 --- a/cache-tree.c +++ b/cache-tree.c @@ -131,9 +131,8 @@ static int do_invalidate_path(struct cache_tree *it, const char *path) * move 4 and 5 up one place (2 entries) * 2 = 6 - 3 - 1 = subtree_nr - pos - 1 */ - memmove(it->down+pos, it->down+pos+1, - sizeof(struct cache_tree_sub *) * - (it->subtree_nr - pos - 1)); + MOVE_ARRAY(it->down + pos, it->down + pos + 1, + it->subtree_nr - pos - 1); it->subtree_nr--; } return 1; |