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| author | Paul Eggert <eggert@Penguin.CS.UCLA.EDU> | 2019-06-08 23:38:18 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2019-06-08 23:38:40 -0700 |
| commit | 1e6396ec3df3b55cebf0f7380ed6dd43775a3a5b (patch) | |
| tree | 27fba0a6180e5ee9c11d75fda1d6e14dc3a60749 /src/fns.c | |
| parent | 5abaea334cf4c0e004fca2b8b272e091eb5b5444 (diff) | |
| download | emacs-1e6396ec3df3b55cebf0f7380ed6dd43775a3a5b.tar.gz | |
Fix int overflow bug in ‘equal’
* src/fns.c (internal_equal):
Fix bug when vector lengths exceed INT_MAX.
Diffstat (limited to 'src/fns.c')
| -rw-r--r-- | src/fns.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/src/fns.c b/src/fns.c index 7d5443150d4..8307a36a09d 100644 --- a/src/fns.c +++ b/src/fns.c @@ -2425,7 +2425,6 @@ internal_equal (Lisp_Object o1, Lisp_Object o2, enum equal_kind equal_kind, case Lisp_Vectorlike: { - register int i; ptrdiff_t size = ASIZE (o1); /* Pseudovectors have the type encoded in the size field, so this test actually checks that the objects have the same type as well as the @@ -2479,7 +2478,7 @@ internal_equal (Lisp_Object o1, Lisp_Object o2, enum equal_kind equal_kind, return false; size &= PSEUDOVECTOR_SIZE_MASK; } - for (i = 0; i < size; i++) + for (ptrdiff_t i = 0; i < size; i++) { Lisp_Object v1, v2; v1 = AREF (o1, i); |