[Emacs-diffs] master 7515a1d: * src/alloc.c (VECTOR_ELTS_MAX): Make sure it’s signed.

[Paul Eggert]

branch: master
commit 7515a1d493f8f0f6f009b50c99cc5e27824bd6b3
Author: Paul Eggert <address@hidden>
Commit: Paul Eggert <address@hidden>

    * src/alloc.c (VECTOR_ELTS_MAX): Make sure it’s signed.
---
 src/alloc.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/alloc.c b/src/alloc.c
index d34b34f..201e3f0 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -3340,9 +3340,10 @@ sweep_vectors (void)
    can be used in an integer constant expression.  */
 
 #define VECTOR_ELTS_MAX \
-  min (((min (PTRDIFF_MAX, SIZE_MAX) - header_size - large_vector_offset) \
-       / word_size), \
-       MOST_POSITIVE_FIXNUM)
+  ((ptrdiff_t) \
+   min (((min (PTRDIFF_MAX, SIZE_MAX) - header_size - large_vector_offset) \
+        / word_size), \
+       MOST_POSITIVE_FIXNUM))
 
 /* Value is a pointer to a newly allocated Lisp_Vector structure
    with room for LEN Lisp_Objects.  LEN must be positive and