Arene base provides backports of various C++ iterator utilities, either because they are not natively available in C++14, or because later versions introduced improvements, such as being marked constexpr.

The public header is

#include "arene/base/iterator.hpp""

The Bazel target is

//:iterator

Standard Library Backports

Backports from newer versions of the standard library, generally to provide constexpr support.

Iterator Operations

utility	description	stdlib equivalent
`arene::base::advance`	Advances the given iterator by the specified number of steps	`std::advance`
`arene::base::distance`	Returns the number of steps between two iterators	`std::distance`
`arene::base::next`	Takes an initial iterator and a number of steps to move forward within a container, and returns the resulting iterator	`std::next`
`arene::base::prev`	Takes an initial iterator and a number of steps to move backward within a container, and returns the resulting iterator	`std::prev`

Iterator Adaptors

utility	description	stdlib equivalent
`arene::base::reverse_iterator`	Converts an iterator into a reverse iterator.	`std::reverse_iterator`
`arene::base::make_reverse_iterator`	Template-deduction factory for `reverse_iterator`	`std::make_reverse_iterator`