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cf_map_swap

Category: map
GitHub: cute_map.h

Swaps two {key, item} pairs by index without breaking the hash lookup.

#define cf_map_swap(m, i, j) map_swap(m, i, j)
Parameters Description
m The map. Can be NULL. Must be declared with CF_MAP(T).
index_a Index of the first item to swap.
index_b Index of the second item to swap.

Code Example

Swap elements during iteration (e.g., for custom sorting).

CF_MAP(CF_V2) table = my_table();
for (int i = 0; i < map_size(table); ++i) {
    for (int j = i + 1; j < map_size(table); ++j) {
        if (my_need_swap(table, i, j)) {
            map_swap(table, i, j);
        }
    }
}

Remarks

Use this for implementing priority queues or custom sort orders on top of the map.

CF_MAP
cf_map_sort
cf_map_ssort
cf_map_keys
cf_map_items
cf_map_size