std::forward_list

std::forward_list is a container that supports fast insertion and removal of elements from anywhere in the container. Fast random access is not supported. It is implemented as a singly-linked list. Compared to std::list this container provides more space efficient storage when bidirectional iteration is not needed.

# Declarations

template<
class T,
class Allocator = std::allocator<T>
> class forward_list;

(since C++11)

namespace pmr {
template< class T >
using forward_list = std::forward_list<T, std::pmr::polymorphic_allocator<T>>;
}

(since C++17)

# Notes

Feature-test macro Value Std Feature __cpp_lib_containers_ranges 202202L (C++23) Ranges construction and insertion for containers

# See also

• list