iiinova — where your digital self keeps evolving

Eric Niebler @ericniebler.com · 26/09/2026

not the hero we need, the hero we deserve

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Eric Niebler @ericniebler.com · 17/09/2026

Death from the tainted beef in his Big Mac

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Eric Niebler @ericniebler.com · 16/09/2026

Note to self: start going to Ren Faires.

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Eric Niebler @ericniebler.com · 03/09/2026

New Bond film sounds kinda shit

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Eric Niebler @ericniebler.com · 29/08/2026

Had he said "acid rain" instead of "ozone hole" he'd have a valid point.

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Eric Niebler @ericniebler.com · 29/08/2026

This month, the NWCPP talk was about CUDA Tile C++, something I worked on, and next month it's about std::execution -- the C++26 async model -- another thing I worked on! Quite a lot, actually. I'm planning to be there. Come say hi. nwcpp.org/Sept-2026.html #cpp

nwcpp.org

Sept 17, 2026: The Async Model is Here. Bring Your Own I/O (for now) — std::execution in C++26

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Eric Niebler @ericniebler.com · 23/08/2026

Portable-ish code for getting the pretty name of a type godbolt.org/z/Y5zqxbvP1 #cpp

Screenshot of C++ code with a compile-time assertion that nameof<int> == "int"

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Eric Niebler @ericniebler.com · 23/08/2026

I finally got `import std` to work on @compiler-explorer.com godbolt.org/z/3P5b11f5M #cpp

screenshot of Compiler Explorer compiling a C++ program that does `import std`

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Eric Niebler @ericniebler.com · 23/08/2026

In consteval you could always allocate and ignore the inner buffer.

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Eric Niebler @ericniebler.com · 23/08/2026

The proposal (wg21.link/p3019) makes a bunch of references to the small-buffer optimization, like

Drafting note: The above is intended to permit a small-buffer-optimization and handle the case where allocators
compare equal but we do not want to swap pointers.

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Eric Niebler @ericniebler.com · 21/08/2026

Does anybody know if there is a conforming implementation of C++26's std::polymorphic that stores small object in situ? I'm trying to avoid writing one. #cpp

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Eric Niebler @ericniebler.com · 10/08/2026

I remember when it was called octothorpe.

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Eric Niebler @ericniebler.com · 01/08/2026

Plan to take time off when you get it. I couldn't get out of bed for 3 days after my first shot.

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Eric Niebler @ericniebler.com · 24/07/2026

May I suggest: IncelEdsel

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Eric Niebler @ericniebler.com · 22/07/2026

But why shower before a workout?

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Eric Niebler @ericniebler.com · 09/07/2026

🙋‍♂️ Also, @ and ` aren't in the character set before C++26, and those characters are used extensively in Doxygen comments.

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Eric Niebler @ericniebler.com · 29/06/2026

Nice, but why not just a single backtick followed by a (potentially qualified) identifier? a `plus b You know, like creating an S-expression in Lisp (if I'm remembering correctly).

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Eric Niebler @ericniebler.com · 19/05/2026

stdexec has real docs now! nvidia.github.io/stdexec/inde... i was able to leverage the work i did to specify std::execution for c++26 by pointing Claude at eel.is/c++draft/exec. yay! #cpp

nvidia.github.io

Welcome to stdexec — stdexec dev documentation

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Eric Niebler @ericniebler.com · 14/05/2026

He's got my vote, whenever he runs

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Eric Niebler @ericniebler.com · 27/04/2026

Have web services become less reliable since we got AI coding assistants? Is it just me?

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Eric Niebler @ericniebler.com · 27/04/2026

In C++, customization point objects like `std::ranges::begin` have been a thing for a while now. I'm a little surprised compiler diagnostics haven't adapted. CPOs are essentially functions. Shouldn't diagnostics refer to them as functions instead of as objects?

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Eric Niebler @ericniebler.com · 26/04/2026

I love both Alien movies. THERE'S ONLY TWO.

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Eric Niebler @ericniebler.com · 25/04/2026

You eventually published something like that in the UJ (University Journal). I drew the accompanying illustration. Phil "Fashion" Plait. Not one of my best, but hey.

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Eric Niebler @ericniebler.com · 23/04/2026

I wish I hadn't. It's not too late for you.

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Eric Niebler @ericniebler.com · 17/03/2026

About half of my time developing stdexec is spent working around MSVC conformance and codegen issues. Another ~25% is spent doing the same for EDG-based compilers.

media.tenor.com

a cartoon character is covering his eyes with his hands .

Alt: Stitch, from the animated Lilo and Stitch movie, claws their eyes in abject frustration.

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Eric Niebler @ericniebler.com · 20/02/2026

Refreshing your .clang-format feels a bit like rearranging the furniture in your living room. It's the same old stuff in the same old room, but somehow it feels new.

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Eric Niebler @ericniebler.com · 14/02/2026

Same. I like the cut of JB Pritzker's jib.

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Eric Niebler @ericniebler.com · 15/01/2026

I was a regular at a pho place on Capitol Hill. I would walk in, the guy would nod and mumble "pho ga", and the bowl would be in front of me before I could find my place in my book.

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Eric Niebler @ericniebler.com · 10/01/2026

yes, gcc and clang will both get it "wrong" in situations. there's something fishy going it. it *may* have something to do with recursive template instantiations, but that's a shot in the dark.

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Eric Niebler @ericniebler.com · 09/01/2026

I have my own version of std::conditional_t, implemented to instantiate fewer class templates (attached). The weird thing is, I have encountered scenarios where my conditional_t picks the wrong branch, whereas std::conditional_t picks the right one. This baffles me. Am I crazy?

An implementation of std::conditional_t that only instantiates two class templates.

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Reposted by Eric Niebler

Jason Turner @lefticus.bsky.social · 12/12/2025

I've built a text adventure game engine on top of the C++ Standard. Why? I have no idea. But it's a learning tool with quests and time travel and artifacts and NPC's and XP and ... well, you just have to check it out! cppevo.dev/adventure

cppevo.dev

C++ Standard Adventure - cppevo

Explore the C++ standard as an interactive text adventure game. Navigate between C++ eras, collect knowledge, and learn the language.

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Eric Niebler @ericniebler.com · 24/12/2025

godbolt.org/z/avMYaTor8 I love how clang just optimizes the whole thing away.

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Eric Niebler @ericniebler.com · 24/12/2025

The trick is that any::interface<ifoo, Model> inherits from Model. any::any<ifoo> builds a clever model, instantiates ifoo with it, and inherits from the result.

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Eric Niebler @ericniebler.com · 24/12/2025

No Advent of Code for me. Instead, I've used the break to write the type-erasure library I have always wanted. C++ doesn't make it easy to have both dynamic polymorphism *and* value semantics, but this little utility does! Interfaces can extend other interfaces, and it works in consteval, too. 🤩

a screenshot of an editor showing a snippet of code that defines an interface, and a type that models the interface non-intrusively, and a type named `any` that is parameterized on the interface and that stores the model while erasing its type.

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