Cpp

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C++ reflection: move-constructible does not mean a move constructor exists

C++ reflection exposes whether special member functions are absent or deleted. A defaulted destructor and a type-trait example show why callability and declaration state answer different questions.

Cpp Cpp

2026-10-26

Choosing C++ Containers: Hidden Allocations and Reference Lifetimes

C++ standard containers can allocate memory without an explicit new expression. Understanding vector reallocation, deque and list validity guarantees, and span ownership helps connect container choices to storage layout and mutation.

Cpp Cpp

2026-10-17

How C++26 reduces undefined behavior: diagnostics and runtime checks

C++26 makes deletion through incomplete types and certain temporary-bound reference returns ill-formed, and introduces erroneous behavior for some uninitialized reads. Understanding compiler diagnostics separately from library hardening reveals what existing code gains and which conditions still matter.

Cpp Cpp

2026-10-09

Evaluating Boost 1.92.0: stricter HTTP parsing and CUDA support

Boost 1.92.0 tightens Beast HTTP parsing and adds CUDA support for Charconv integer conversions and Decimal types. Distinguishing changes to existing traffic from opt-in features and Windows DLL installation changes helps focus upgrade testing.

Cpp Release note

2026-09-29

Reducing C++ template bloat with a smaller type-dependent boundary

A large template can be instantiated for each type even when little of its logic depends on that type. A shared worker taking std::span can narrow that boundary, but lifetime, evaluation order, and optimized output determine whether the refactoring pays off.

Cpp Cpp Templates

2026-09-25

Safer C++ Firmware: Strong Types, Units, and Validation Boundaries

A September 30, 2026 workshop announcement provides a starting point for examining strong types in firmware. Explore which unit and argument mistakes types can prevent, and where runtime validation remains necessary.

Cpp Embedded Systems

2026-09-20

What ACCU On Sea 2026 Reveals About C++: AI, Legacy Code, and Contracts

The ACCU Conference and C++ On Sea merged for the first ACCU On Sea in June 2026. Using the trip report and official material, this article connects the event to three practical themes: validation in AI-assisted development, incremental legacy modernization, and the current state of C++ Contracts.

Cpp Accu On Sea

2026-08-27

C++26 Reflection Moves Dispatch-Table Registration to Compile Time

A C++26 static-reflection implementation builds a name-to-function dispatch table at compile time, removing a separately maintained registry and runtime table initialization. Lookup, indirect-call costs, naming constraints, and toolchain limitations still remain.

Cpp New technology

2026-08-27

Beyond new and delete: Learning ownership, lifetime, and C++26 from C++ Memory Management

On August 17, 2026, the ISO C++ Blog highlighted a review of Patrice Roy’s C++ Memory Management. This article explains why modern C++ memory management extends beyond smart pointers into object lifetime, byte representation, and the evolving C++23 and C++26 specifications.

Cpp Memory Management

2026-08-17

When FIFO Is the Wrong Contract: Designing a Coalescing Event Queue in C++

In high-frequency state-update systems, preserving every event in FIFO order can delay the current value behind obsolete updates. This article explains key-based event coalescing through merge semantics, C++ concurrency, ordering, backpressure, and the event types that must remain complete.

Cpp Concurrency

2026-08-16

std::rotate revisited: implementation notes for libc++ and libstdc++

ISO C++ Blog distributed Raymond Chen's article about `std::rotate` and swapping adjacent memory blocks at 2026-07-21T20:25:41Z. The excerpt revises an earlier explanation: only libc++ is described as using cycle decomposition for the random-access implementation, while libstdc++ uses a different algorithm.

Cpp Std Rotate

2026-07-29