C++20 changes to std::chrono you might not be aware of: clocks and more

published at 30.03.2026 18:26 by Jens Weller
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I was aware of that C++20 extended std::chrono by adding calendar and time zone support. But I wasn't aware about that it also brought a set of new clock classes and better support for clocks in general.

Follow up: resize + assign is often faster than reserve + emplace_back for vector

published at 05.03.2026 15:34 by Jens Weller
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Last week I've posted about some test code to explore the question if resize + assign is faster than reserve + emplace_back.

Is resize + assign faster then reserve + emplace_back for vector?

published at 26.02.2026 18:06 by Jens Weller
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This question I've been asked by Farid Mehrabi on LinkedIn. And after quickly coming up with two tests for this on quick-bench, I've got interesting results with you to share!

Atomics in C++26?

published at 04.12.2025 18:05 by Jens Weller
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Did you know there is an C++26 addition to <atomic>?

Binary Trees: using unique_ptr

published at 20.11.2025 22:38 by Jens Weller
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Recently I've looked at binary trees, comparing a bare pointer version with new/delete against a binary tree that stores its nodes into a vector and uses indexes instead of pointers.