From 69f6dea44cf272dc80be6dffd0ac8db5c50585b4 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Thu, 9 Jan 2025 03:50:19 -0500 Subject: [PATCH] combine-diff: drop public declaration of combine_diff_path_size() We want callers to use combine_diff_path_new() to allocate structs, rather than using combine_diff_path_size() and xmalloc(). That gives us more consistency over the initialization of the fields. Now that the final external user of combine_diff_path_size() is gone, we can stop declaring it publicly. And since our constructor is the only caller, we can just inline it there. Breaking the size computation into two parts also lets us reuse the intermediate multiplication result of the parent length, since we need to know it to perform our memset(). The result is a little easier to read. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- combine-diff.c | 5 +++-- diff.h | 3 --- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/combine-diff.c b/combine-diff.c index ae3cbfc699..f21e1f58ba 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -1658,8 +1658,9 @@ struct combine_diff_path *combine_diff_path_new(const char *path, size_t num_parents) { struct combine_diff_path *p; + size_t parent_len = st_mult(sizeof(p->parent[0]), num_parents); - p = xmalloc(combine_diff_path_size(num_parents, path_len)); + p = xmalloc(st_add4(sizeof(*p), path_len, 1, parent_len)); p->path = (char *)&(p->parent[num_parents]); memcpy(p->path, path, path_len); p->path[path_len] = 0; @@ -1667,7 +1668,7 @@ struct combine_diff_path *combine_diff_path_new(const char *path, p->mode = mode; oidcpy(&p->oid, oid); - memset(p->parent, 0, sizeof(p->parent[0]) * num_parents); + memset(p->parent, 0, parent_len); return p; } diff --git a/diff.h b/diff.h index 60e7db4ad6..32ad17fd38 100644 --- a/diff.h +++ b/diff.h @@ -489,9 +489,6 @@ struct combine_diff_path { char *path; } parent[FLEX_ARRAY]; }; -#define combine_diff_path_size(n, l) \ - st_add4(sizeof(struct combine_diff_path), (l), 1, \ - st_mult(sizeof(struct combine_diff_parent), (n))) struct combine_diff_path *combine_diff_path_new(const char *path, size_t path_len, unsigned int mode,