/// Extracts an item with minimal key from the set
/**
- The function searches an item with minimal key, unlinks it,
+ The function searches an item with minimal key, unlinks it,
and returns \ref cds::urcu::exempt_ptr "exempt_ptr" pointer to the item.
If the skip-list is empty the function returns an empty \p exempt_ptr.
/// Extracts an item with maximal key from the set
/**
- The function searches an item with maximal key, unlinks it from the set,
+ The function searches an item with maximal key, unlinks it from the set,
and returns \ref cds::urcu::exempt_ptr "exempt_ptr" pointer to the item.
If the skip-list is empty the function returns an empty \p exempt_ptr.