On 03/02/2026 11:20, Matthieu Longo wrote: > On 30/01/2026 17:17, Matthieu Longo wrote: >> include/ChangeLog: >> >> * doubly-linked-list.h >> (LINKED_LIST_SWAP_LISTS): Add new helper. >> (LINKED_LIST_DECL_SWAP_LISTS): Likewise. >> (LINKED_LIST_DEFN_SWAP_LISTS): Likewise. >> (LWRAPPERTYPE##_swap_lists): Likewise. >> >> libiberty/ChangeLog: >> >> * testsuite/test-doubly-linked-list.c: Update. > > This is the updated commit message: > > libiberty: add helper to swap doubly-linked list wrappers > > This patch introduces a new helper to swap the contents of two > doubly-linked list wrappers. The new *_swap_lists operation exchanges > the first, last, and size fields, allowing two lists to be swapped > efficiently without iterating over their elements. > > This helper is intended for cases where the ownership of a list must be > exchanged but swapping wrapper pointers is not possible. For simple > references to lists, when wrappers are dynamically allocated, swapping > the wrapper pointers themselves is sufficient and remains the preferred > approach. > > This change adds the necessary declaration and definition macros to > doubly-linked-list.h and integrates them into the set of mutative > list operations. > > The testsuite is updated accordingly to cover the new functionality. > > include/ChangeLog: > > * doubly-linked-list.h > (LINKED_LIST_SWAP_LISTS): Add new helper. > (LINKED_LIST_DECL_SWAP_LISTS): Likewise. > (LINKED_LIST_DEFN_SWAP_LISTS): Likewise. > (LWRAPPERTYPE##_swap_lists): Likewise. > > libiberty/ChangeLog: > > * testsuite/test-doubly-linked-list.c: Update.
OK. R.
