From 5828e8352c07753a1f751322800524bf9dff8679 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ren=C3=A9=20Scharfe?= Date: Sun, 2 Jun 2013 17:46:56 +0200 Subject: diff-lib, read-tree, unpack-trees: mark cache_entry array paramters const MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change the type merge_fn_t to accept the array of cache_entry pointers as const pointers to const pointers. This documents the fact that the merge functions don't modify the cache_entry contents or replace any of the pointers in the array. Only a single cast is necessary in unpack_nondirectories because adding two const modifiers at once is not allowed in C. The cast is safe in that it doesn't mask any modfication; call_unpack_fn only needs the array for reading. Signed-off-by: René Scharfe Signed-off-by: Junio C Hamano --- unpack-trees.h | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'unpack-trees.h') diff --git a/unpack-trees.h b/unpack-trees.h index 5e432f576e..36a73a6d00 100644 --- a/unpack-trees.h +++ b/unpack-trees.h @@ -8,7 +8,7 @@ struct unpack_trees_options; struct exclude_list; -typedef int (*merge_fn_t)(struct cache_entry **src, +typedef int (*merge_fn_t)(const struct cache_entry * const *src, struct unpack_trees_options *options); enum unpack_trees_error_types { @@ -77,9 +77,13 @@ struct unpack_trees_options { extern int unpack_trees(unsigned n, struct tree_desc *t, struct unpack_trees_options *options); -int threeway_merge(struct cache_entry **stages, struct unpack_trees_options *o); -int twoway_merge(struct cache_entry **src, struct unpack_trees_options *o); -int bind_merge(struct cache_entry **src, struct unpack_trees_options *o); -int oneway_merge(struct cache_entry **src, struct unpack_trees_options *o); +int threeway_merge(const struct cache_entry * const *stages, + struct unpack_trees_options *o); +int twoway_merge(const struct cache_entry * const *src, + struct unpack_trees_options *o); +int bind_merge(const struct cache_entry * const *src, + struct unpack_trees_options *o); +int oneway_merge(const struct cache_entry * const *src, + struct unpack_trees_options *o); #endif -- cgit v1.2.3