C++23 — 3 Technical Articles

Nov 7, 2025 · Backend Development

Why C++23’s std::flat_map and std::flat_set Boost Performance and Cache Locality

Introduced in C++23, std::flat_map and std::flat_set replace tree‑based maps and sets with vector‑backed, flat containers that offer superior cache locality, faster traversal for small‑to‑medium data sets, and reduced memory overhead, though they incur O(N) insertion costs and iterator invalidation.

C++23cache localitycontainer performance

0 likes · 6 min read

Why C++23’s std::flat_map and std::flat_set Boost Performance and Cache Locality

21CTO

Mar 18, 2025 · Backend Development

What’s New in GCC 15? COBOL Frontend, C23 Default, and RISC‑V Boosts

GCC 15 is slated for release in late April or early May, bringing a native COBOL frontend, default C23 support, early C++23/26 features, expanded RISC‑V capabilities, and a roadmap that still leaves Algol‑68 for future versions.

Algol68C++23C23

0 likes · 6 min read

What’s New in GCC 15? COBOL Frontend, C23 Default, and RISC‑V Boosts

21CTO

Mar 9, 2025 · Fundamentals

How Bjarne Stroustrup Envisions Safer C++ with Mandatory Guidelines

Bjarne Stroustrup urges the C++ community and the WG21 standards committee to adopt mandatory guideline configuration files, known as Profiles, to improve type and memory safety, while highlighting recent language features, upcoming C++23 and C++26 enhancements, and the broader evolution of the language.

Bjarne StroustrupC++C++23

0 likes · 9 min read

How Bjarne Stroustrup Envisions Safer C++ with Mandatory Guidelines