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| author | Mattias Engdegård <mattiase@acm.org> | 2023-09-18 19:16:05 +0200 |
|---|---|---|
| committer | Mattias Engdegård <mattiase@acm.org> | 2023-09-19 15:21:03 +0200 |
| commit | 321f2e1e4d4b2f209b072dc891cc89cbab19f032 (patch) | |
| tree | 8d5747df71c6936ed27e75b787460e10f6c415cd /lisp/emacs-lisp/bytecomp.el | |
| parent | 7be5c8f47c9df01a5accdbf954d952b9bbe5b5f0 (diff) | |
| download | emacs-321f2e1e4d4b2f209b072dc891cc89cbab19f032.tar.gz emacs-321f2e1e4d4b2f209b072dc891cc89cbab19f032.tar.bz2 emacs-321f2e1e4d4b2f209b072dc891cc89cbab19f032.zip | |
Don't use pointer arithmetic for pointer tagging (bug#65491)
This makes for safer code when tagging null pointers in particular,
since pointer arithmetic on NULL is undefined and therefore can be
assumed, by the compiler, not to occur.
* src/lisp.h (untagged_ptr): Remove.
(TAG_PTR): Cast to uintptr_t instead of untagged_ptr.
Diffstat (limited to 'lisp/emacs-lisp/bytecomp.el')
0 files changed, 0 insertions, 0 deletions