1.1 --- a/src/cx/list.h Wed Feb 08 18:56:58 2023 +0100
1.2 +++ b/src/cx/list.h Wed Feb 08 20:26:09 2023 +0100
1.3 @@ -164,6 +164,15 @@
1.4 );
1.5
1.6 /**
1.7 + * Member function for swapping two elements.
1.8 + */
1.9 + int (*swap)(
1.10 + struct cx_list_s *list,
1.11 + size_t i,
1.12 + size_t j
1.13 + );
1.14 +
1.15 + /**
1.16 * Member function for element lookup.
1.17 */
1.18 void *(*at)(
1.19 @@ -401,6 +410,26 @@
1.20 }
1.21
1.22 /**
1.23 + * Swaps two items in the list.
1.24 + *
1.25 + * Implementations should only allocate temporary memory for the swap, if
1.26 + * it is necessary.
1.27 + *
1.28 + * @param list the list
1.29 + * @param i the index of the first element
1.30 + * @param j the index of the second element
1.31 + * @return zero on success, non-zero if one of the indices is out of bounds
1.32 + */
1.33 +__attribute__((__nonnull__))
1.34 +static inline int cxListSwap(
1.35 + CxList *list,
1.36 + size_t i,
1.37 + size_t j
1.38 +) {
1.39 + return list->cl->swap(list, i, j);
1.40 +}
1.41 +
1.42 +/**
1.43 * Returns a pointer to the element at the specified index.
1.44 *
1.45 * @param list the list
