diff options
| author |   Dave Barach <dave@barachs.net> | 2020-04-24 16:07:37 -0400 |
|---|---|---|
| committer |   Andrew Yourtchenko <ayourtch@gmail.com> | 2020-08-13 17:20:47 +0000 |
| commit | 3b49dc6cc80e1a373363b2ff055327dda89e50db (patch) | |
| tree | 8aba4de78be63336e5225abb9df5afc4b235f4d2 /src/vppinfra/vec.h | |
| parent | eaef2de7f92da67b6f47afdeac85d9d793d47470 (diff) | |
vppinfra: finish deprecating qsort.c
Minor change to vec_sort_with_function(...): don't depend on the qsort
implementation to deal with null, zero-long, or 1-long vectors
Type: fix
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I7bd7b0421673d2a025363089562aa7c6266fba66
(cherry picked from commit f593b5792031b3797cdcdfd3fbb33ac4de8c9a5d)
Diffstat (limited to 'src/vppinfra/vec.h')
| -rw-r--r-- | src/vppinfra/vec.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/vppinfra/vec.h b/src/vppinfra/vec.h index 461c0de3347..da7d0896109 100644 --- a/src/vppinfra/vec.h +++ b/src/vppinfra/vec.h @@ -974,12 +974,16 @@ do { \ /** \brief Sort a vector using the supplied element comparison function + Does not depend on the underlying implementation to deal correctly + with null, zero-long, or 1-long vectors + @param vec vector to sort @param f comparison function */ -#define vec_sort_with_function(vec,f) \ -do { \ - qsort (vec, vec_len (vec), sizeof (vec[0]), (void *) (f)); \ +#define vec_sort_with_function(vec,f) \ +do { \ + if (vec_len (vec) > 1) \ + qsort (vec, vec_len (vec), sizeof (vec[0]), (void *) (f)); \ } while (0) /** \brief Make a vector containing a NULL terminated c-string. |