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| author | Paul Eggert <eggert@cs.ucla.edu> | 2017-05-19 15:35:24 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2017-05-19 15:36:21 -0700 |
| commit | a50e906c0c046c57938f786ffb82b36beea75043 (patch) | |
| tree | 80da30229cef0331a39ed6ed4ff55e2f16aefb36 /lib/argp-help.c | |
| parent | 5e0faf88718e9329e44c773039166c7dbf3ca57c (diff) | |
| download | gnulib-a50e906c0c046c57938f786ffb82b36beea75043.tar.gz | |
argp: fix pointer-subtraction bug
* lib/argp-help.c (hol_append): Don’t subtract pointers to
different arrays, as this can run afoul of -fcheck-pointer-bounds.
See the thread containing Bruno Haible’s report in:
http://lists.gnu.org/archive/html/bug-gnulib/2017-05/msg00171.html
Diffstat (limited to 'lib/argp-help.c')
| -rw-r--r-- | lib/argp-help.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/argp-help.c b/lib/argp-help.c index 06329606a7..ce9bab9637 100644 --- a/lib/argp-help.c +++ b/lib/argp-help.c @@ -880,7 +880,8 @@ hol_append (struct hol *hol, struct hol *more) /* Fix up the short options pointers from HOL. */ for (e = entries, left = hol->num_entries; left > 0; e++, left--) - e->short_options += (short_options - hol->short_options); + e->short_options + = short_options + (e->short_options - hol->short_options); /* Now add the short options from MORE, fixing up its entries too. */ |