jh::pod::bitflags< N > Struct Template Reference

POD-compatible fixed-size bitflags structure.Generic fallback specialization for non-native sizes (e.g. 24, 120 bits, etc). More...

#include <jh/pods/bits.h>

Inheritance diagram for jh::pod::bitflags< N >:

Detailed Description

template<std::uint16_t N>
requires (N % 8 == 0 && N <= 8 * max_pod_bitflags_bytes)
struct jh::pod::bitflags< N >

POD-compatible fixed-size bitflags structure.Generic fallback specialization for non-native sizes (e.g. 24, 120 bits, etc).

Template Parameters

N	Number of bits. Must be divisible by 8 and ≤ 32'768.

Storage strategy:

• N = 8,16,32,64 → backed by a native unsigned integer
• Other valid multiples of 8 → backed by a fixed-size byte array (little-endian)

Properties:

• All operations are constexpr-compatible and noexcept
• .set(), .clear(), .flip(), .has() are unchecked
• Bitwise operators (|, &, ^, ~) supported
• .count() returns the number of bits set
• .set_all() / .reset_all() / .flip_all() available
• .bits member (native) or .data (byte-array)

Design Constraints:

• Fully inline layout, no heap or dynamic allocation
• Cannot exceed 4KB total memory usage
• No virtual functions, no RTTI, trivially copyable

Note

This is a POD type. Suitable for:

• Memory-mapped files or sockets
• std::memcpy or binary serialization
• constexpr and static_assert contexts

Warning

This structure is low-level. All operations assume caller correctness.

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The documentation for this struct was generated from the following file:

• include/jh/pods/bits.h