STL forward_list::assign implementation in C++11

I was wondering what the STL forward_list implementation for assign would be. I tried searching for the source code online, but the forward_list doesn't seem to be anywhere.

This is what I envisioned the definition to look like:

// Replaces the contents with count copies of value value
template<typename T, typename A>
void forward_list<T, A>::assign(size_type count, const T& value)
{
    if(count_ <= count)
    {
        for(auto&& element : *this)
        {
            element = value;
        }
        auto rem = count - count_;
        for(size_t i = 0; i < rem; ++i)
        {
            push_back(value);
        }
    }
    else
    {
        auto itr = begin();
        for(size_t i = 0; i < count; ++i)
        {
            (*itr)++ = value;
        }
        auto rem = count_ - count;
        for(size_t i = 0; i < rem; ++i)
        {
            pop_back();
        }
    }
}