diff options
Diffstat (limited to 'src/lib/llist.h')
| -rw-r--r-- | src/lib/llist.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/lib/llist.h b/src/lib/llist.h index 8a52e87..5ad5d75 100644 --- a/src/lib/llist.h +++ b/src/lib/llist.h @@ -78,4 +78,18 @@ #define DLLIST2_REMOVE(head, tail, item) \ DLLIST2_REMOVE_FULL(head, tail, item, prev, next) +#define DLLIST2_JOIN_FULL(head1, tail1, head2, tail2, prev, next) STMT_START { \ + if (*(head1) == NULL) { \ + *(head1) = *(head2); \ + *(tail1) = *(tail2); \ + } else if (*(head2) != NULL) { \ + (*(tail1))->next = *(head2); \ + (*(head2))->prev = *(tail1); \ + (*tail1) = (*tail2); \ + } \ + } STMT_END + +#define DLLIST2_JOIN(head1, tail1, head2, tail2) \ + DLLIST2_JOIN_FULL(head1, tail1, head2, tail2, prev, next) + #endif |