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-rw-r--r--diffcore-delta.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/diffcore-delta.c b/diffcore-delta.c
index 7cf431d261..4159748a70 100644
--- a/diffcore-delta.c
+++ b/diffcore-delta.c
@@ -53,7 +53,8 @@ static struct spanhash_top *spanhash_rehash(struct spanhash_top *orig)
int osz = 1 << orig->alloc_log2;
int sz = osz << 1;
- new = xmalloc(sizeof(*orig) + sizeof(struct spanhash) * sz);
+ new = xmalloc(st_add(sizeof(*orig),
+ st_mult(sizeof(struct spanhash), sz)));
new->alloc_log2 = orig->alloc_log2 + 1;
new->free = INITIAL_FREE(new->alloc_log2);
memset(new->data, 0, sizeof(struct spanhash) * sz);
@@ -130,7 +131,8 @@ static struct spanhash_top *hash_chars(struct diff_filespec *one)
int is_text = !diff_filespec_is_binary(one);
i = INITIAL_HASH_SIZE;
- hash = xmalloc(sizeof(*hash) + sizeof(struct spanhash) * (1<<i));
+ hash = xmalloc(st_add(sizeof(*hash),
+ st_mult(sizeof(struct spanhash), 1<<i)));
hash->alloc_log2 = i;
hash->free = INITIAL_FREE(i);
memset(hash->data, 0, sizeof(struct spanhash) * (1<<i));