#include <forward_list>
#include <string>
#include <iostream>

template<typename T>
std::ostream& operator<<(std::ostream& s, const std::forward_list<T>& v) {
    s.put('[');
    char comma[3] = {'\0', ' ', '\0'};
    for (const auto& e : v) {
        s << comma << e;
        comma[0] = ',';
    }
    return s << ']';
}

int main() 
{
    // c++11 initializer list syntax:
    std::forward_list<std::string> words1 {"the", "frogurt", "is", "also", "cursed"};
    std::cout << "words1: " << words1 << '\n';
 
    // words2 == words1
    std::forward_list<std::string> words2(words1.begin(), words1.end());
    std::cout << "words2: " << words2 << '\n';
 
    // words3 == words1
    std::forward_list<std::string> words3(words1);
    std::cout << "words3: " << words3 << '\n';
 
    // words4 is {"Mo", "Mo", "Mo", "Mo", "Mo"}
    std::forward_list<std::string> words4(5, "Mo");
    std::cout << "words4: " << words4 << '\n';
}

Output:

words1: [the, frogurt, is, also, cursed]
words2: [the, frogurt, is, also, cursed]
words3: [the, frogurt, is, also, cursed]
words4: [Mo, Mo, Mo, Mo, Mo]

Method name	Definition
operator=	assigns values to the container
assign	assigns values to the container
get_allocator	returns the associated allocator
------	------
Element access
front	access the first element
------	------
Iterators
before_begin	returns an iterator to the element before beginning
cbefore_begin	returns a constant iterator to the element before beginning
begin	returns an iterator to the beginning
cbegin	returns a const iterator to the beginning
end	returns an iterator to the end
cend	returns a iterator to the end
Capacity
empty	checks whether the container is empty
max_size	returns the maximum possible number of elements
Modifiers
clear	clears the contents
insert_after	inserts elements after an element
emplace_after	constructs elements in-place after an element
erase_after	erases an element after an element
push_front	inserts an element to the beginning
emplace_front	constructs an element in-place at the beginning
pop_front	removes the first element
resize	changes the number of elements stored
swap	swaps the contents
Operations
merge	merges two sorted lists
splice_after	moves elements from another forward_list
remove	removes elements satisfying specific criteria
remove_if	removes elements satisfying specific criteria
reverse	reverses the order of the elements
unique	removes consecutive duplicate elements
sort	sorts the elements