diff options
Diffstat (limited to 'source/blender/blenlib')
| -rw-r--r-- | source/blender/blenlib/BLI_listbase.h | 1 | ||||
| -rw-r--r-- | source/blender/blenlib/intern/listbase.c | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_listbase.h b/source/blender/blenlib/BLI_listbase.h index c4ad5acfe4b..34e7a1fa212 100644 --- a/source/blender/blenlib/BLI_listbase.h +++ b/source/blender/blenlib/BLI_listbase.h @@ -82,6 +82,7 @@ void BLI_listbase_swaplinks(struct ListBase *listbase, void *vlinka, void *vlink void BLI_listbases_swaplinks(struct ListBase *listbasea, struct ListBase *listbaseb, void *vlinka, void *vlinkb) ATTR_NONNULL(2, 3); void BLI_movelisttolist(struct ListBase *dst, struct ListBase *src) ATTR_NONNULL(1, 2); +void BLI_movelisttolist_reverse(struct ListBase *dst, struct ListBase *src) ATTR_NONNULL(1, 2); void BLI_duplicatelist(struct ListBase *dst, const struct ListBase *src) ATTR_NONNULL(1, 2); void BLI_listbase_reverse(struct ListBase *lb) ATTR_NONNULL(1); void BLI_listbase_rotate_first(struct ListBase *lb, void *vlink) ATTR_NONNULL(1, 2); diff --git a/source/blender/blenlib/intern/listbase.c b/source/blender/blenlib/intern/listbase.c index 80b8a8d041c..da187fbd19d 100644 --- a/source/blender/blenlib/intern/listbase.c +++ b/source/blender/blenlib/intern/listbase.c @@ -68,6 +68,26 @@ void BLI_movelisttolist(ListBase *dst, ListBase *src) } /** + * moves the entire contents of \a src at the begining of \a dst. + */ +void BLI_movelisttolist_reverse(ListBase *dst, ListBase *src) +{ + if (src->first == NULL) return; + + if (dst->first == NULL) { + dst->first = src->first; + dst->last = src->last; + } + else { + ((Link *)src->last)->next = dst->first; + ((Link *)dst->first)->prev = src->last; + dst->first = src->first; + } + + src->first = src->last = NULL; +} + +/** * Prepends \a vlink (assumed to begin with a Link) onto listbase. */ void BLI_addhead(ListBase *listbase, void *vlink) |