range_adaptor.h File Reference

STL-compatible adapter for duck-typed sequences and iterators. More...

#include "jh/conceptual/iterator.h"
#include "jh/conceptual/range_traits.h"
#include <ranges>

Go to the source code of this file.

Classes
class	jh::ranges::range_adaptor< Seq >
	Lightweight adapter that exposes any sequence as a standard range. More...

Namespaces
namespace	jh::ranges
	Semantic pipeline namespace for JH range operations.

Variables
template<typename SeqType>
constexpr bool	std::ranges::enable_borrowed_range< jh::ranges::range_adaptor< SeqType > >
	Legal specialization of std::ranges::enable_borrowed_range.

Detailed Description

STL-compatible adapter for duck-typed sequences and iterators.

Copyright

Copyright 2025 JeongHan-Bae <mastropseudo@gmail.com>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Full license: GitHub

Author

JeongHan-Bae <mastropseudo@gmail.com>

This header provides the bridge between jh::concepts::sequence and std::ranges::range. It introduces two key components:

• jh::ranges::detail::completed_iterator — a behavioral iterator adaptor that completes any duck-typed iterator to full STL iterator semantics.
• jh::ranges::range_adaptor — a lightweight view class that exposes a sequence as a std::ranges::range, using completed_iterator for begin() and directly forwarding end().

Together, they allow any object satisfying jh::concepts::sequence to be seamlessly used in std::ranges algorithms, even if it defines no iterator typedefs or category tags.