From 5e7fe8a7b89a07d8c3ab298ac69bc33f6ba88b47 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Fri, 27 Dec 2024 11:46:29 +0100 Subject: commit-reach: use `size_t` to track indices when computing merge bases The functions `repo_get_merge_bases_many()` and friends accepts an array of commits as well as a parameter that indicates how large that array is. This parameter is using a signed integer, which leads to a couple of warnings with -Wsign-compare. Refactor the code to use `size_t` to track indices instead and adapt callers accordingly. While most callers are trivial, there are two callers that require a bit more scrutiny: - builtin/merge-base.c:show_merge_base() subtracts `1` from the `rev_nr` before calling `repo_get_merge_bases_many_dirty()`, so if the variable was `0` it would wrap. This code is fine though because its only caller will execute that code only when `argc >= 2`, and it follows that `rev_nr >= 2`, as well. - bisect.ccheck_merge_bases() similarly subtracts `1` from `rev_nr`. Again, there is only a single caller that populates `rev_nr` with `good_revs.nr`. And because a bisection always requires at least one good revision it follws that `rev_nr >= 1`. Mark the file as -Wsign-compare-clean. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- commit-reach.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'commit-reach.h') diff --git a/commit-reach.h b/commit-reach.h index fa5408054a..6012402dfc 100644 --- a/commit-reach.h +++ b/commit-reach.h @@ -14,12 +14,12 @@ int repo_get_merge_bases(struct repository *r, struct commit *rev2, struct commit_list **result); int repo_get_merge_bases_many(struct repository *r, - struct commit *one, int n, + struct commit *one, size_t n, struct commit **twos, struct commit_list **result); /* To be used only when object flags after this call no longer matter */ int repo_get_merge_bases_many_dirty(struct repository *r, - struct commit *one, int n, + struct commit *one, size_t n, struct commit **twos, struct commit_list **result); -- cgit v1.2.3