# std::forward_list<T,Allocator>::erase_after

From cppreference.com
< cpp‎ | container‎ | forward list

iterator erase_after( const_iterator pos ); | (1) | (since C++11)
iterator erase_after( const_iterator first, const_iterator last ); | (2) | (since C++11)

Removes specified elements from the container.

1) Removes the element following pos.
2) Removes the elements following first until last.

### Parameters

pos | - | iterator to the element preceding the element to remove
first, last | - | range of elements to remove

### Return value

1) Iterator to the element following the erased one, or end() if no such element exists.
2) last

### Complexity

1) Constant.
2) Linear in distance between first and last.

### Example

Run this code

    #include <forward_list>
    #include <iostream>
    #include <iterator>

    int main()
    {
        std::forward_list<int> l = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

        // l.erase(l.begin()); // Error: no function erase()

        l.erase_after(l.before_begin()); // Removes first element

        for (auto n : l)
            std::cout << n << ' ';
        std::cout << '\n';

        auto fi = std::next(l.begin());
        auto la = std::next(fi, 3);

        l.erase_after(fi, la);

        for (auto n : l)
            std::cout << n << ' ';
        std::cout << '\n';
    }

Output:

    2 3 4 5 6 7 8 9
    2 3 6 7 8 9

### See also

clear (C++11) | clears the contents (public member function)

Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/container/forward_list/erase_after&oldid=155975"