span.h File Reference

POD-safe minimal span for contiguous memory. More...

#include <cstdint>
#include <cstddef>
#include <concepts>
#include <type_traits>
#include <utility>
#include "jh/pods/pod_like.h"
#include "jh/pods/pair.h"

Go to the source code of this file.

Classes
struct	jh::pod::span< T >
	Non-owning typed view over a contiguous memory block. More...

Namespaces
namespace	jh::pod
	Aggregated entry point for Plain-Old-Data and layout-stable value utilities.

Functions
template<typename T, std::uint64_t N>
constexpr span< T >	jh::pod::to_span (T(&arr)[N]) noexcept
	Create span from a raw array (T[N]).
template<typename T, std::uint64_t N>
constexpr span< const T >	jh::pod::to_span (const T(&arr)[N]) noexcept
	Create span from a const raw array (const T[N]).
template<detail::linear_container C>
constexpr auto	jh::pod::to_span (C &c) noexcept
	Creates a POD-compatible span from a linear container.

Detailed Description

POD-safe minimal span for contiguous memory.

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

Design Goals:

• Fully POD (T* + uint64_t)
• No dynamic allocation, no STL dependencies
• Iteration, slicing, and indexing support
• Suitable for arena allocators, mmap, and raw containers

Note

Unlike std::span, this type is limited to POD-compatible contiguous memory. It does not support iterator ranges, polymorphic containers, or allocator-aware semantics.

Lifetime of underlying memory must be managed externally.