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| author | Allan McRae <allan@archlinux.org> | 2011-07-04 03:17:12 +0200 |
|---|---|---|
| committer | Dan McGee <dan@archlinux.org> | 2011-07-05 17:22:11 +0200 |
| commit | 24324ff0e12a3e19cada669a4c5c391e486790a3 (patch) | |
| tree | bb211091670af259881bd326d5e034efea7eae26 /lib/libalpm/alpm_list.c | |
| parent | 97103f860d48e1f6f9c0dd7c75568618f8ed5163 (diff) | |
| download | pacman-24324ff0e12a3e19cada669a4c5c391e486790a3.tar.gz pacman-24324ff0e12a3e19cada669a4c5c391e486790a3.tar.xz | |
Simplify alpm_list_previous
We can readily detect the first node in a list by checking if
node->prev->next is NULL. So there is no need to pass the head
of the list to this function and its prototype now looks like
all the other item accessors.
Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib/libalpm/alpm_list.c')
| -rw-r--r-- | lib/libalpm/alpm_list.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/libalpm/alpm_list.c b/lib/libalpm/alpm_list.c index 38cefa62..071cd994 100644 --- a/lib/libalpm/alpm_list.c +++ b/lib/libalpm/alpm_list.c @@ -547,11 +547,10 @@ inline alpm_list_t SYMEXPORT *alpm_list_next(const alpm_list_t *node) * * @return the previous element, or NULL when no previous element exist */ -inline alpm_list_t SYMEXPORT *alpm_list_previous(const alpm_list_t *list, - const alpm_list_t *node) +inline alpm_list_t SYMEXPORT *alpm_list_previous(const alpm_list_t *list) { - if(node && node != list) { - return node->prev; + if(list && list->prev->next) { + return list->prev; } else { return NULL; } |