Eric Niebler
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ericniebler.com
Eric Niebler
@ericniebler.com
1.1K followers 81 following 190 posts
C++ core compute libraries tech lead at @nvidia, husband, father, @isocpp member, former nomad, and sometimes artist wannabe.

opinions are my own

he/him
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ericniebler.com
Also
Mr Incredible and his boss
November 2, 2025 at 10:58 PM
ericniebler.com
November 2, 2025 at 5:42 PM
ericniebler.com
Film poster for Short Circuit (1986)
October 31, 2025 at 7:55 PM
ericniebler.com
Twiki and Dr Theopolis from Buck Rogers
October 23, 2025 at 1:49 AM
ericniebler.com
Crazy theory meme
October 21, 2025 at 11:47 PM
ericniebler.com
I've started using digit separators when checking the value of __cplusplus and feature test macros, and i am liking it. 2019'02 is less work for my old brain.
screenshot of c++ source code
August 29, 2025 at 4:33 PM
ericniebler.com
The Lone Gunmen from the X-Files
April 7, 2025 at 12:50 AM
ericniebler.com
Seattle is upping its crime game. 🫠
Headline: Report of Man With Bazooka in downtown Seattle
March 28, 2025 at 3:02 PM
ericniebler.com
Black and white photo of Jim Henson in full beard.
March 19, 2025 at 3:15 PM
ericniebler.com
Have a happy C++!
two heavy plus signs over a U looks like a smiling emoticon, but rotated 90 degrees clockwise looks like C++
March 8, 2025 at 1:18 AM
ericniebler.com
Boy that sends me back
Headline: Dysentery Outbreak in Oregon Sickens 40
March 6, 2025 at 11:52 PM
ericniebler.com
C++ wizards: this one has me stumped. I can initialize an immovable sub-object if it is a member but not if it is a base class. Why?

godbolt.org/z/P7jxr5joK

#c++ #cpp
February 24, 2025 at 5:39 PM
ericniebler.com
I miss ThinkGeek. Where do I go to buy desktop refrigerators and TaunTaun sleeping bags now?
ThinkGeek monkey logo
February 16, 2025 at 12:55 AM
ericniebler.com
Worried about the price of eggs? Get some hens. 🐔 Srsly.
Eggs over easy on English muffin. Egg yolks are a deep orangy yellow.
February 7, 2025 at 4:31 PM
ericniebler.com
Seattle's master criminals have struck again
Headline: "Two Donkeys Named Juan and Julio Stolen"
February 3, 2025 at 4:17 PM
ericniebler.com
Use [[no_unique_address]] to determine if a set of types are unique in O(N).

godbolt.org/z/dTcGhqseo
a screenshot of some syntax-highlighted C++ code showing how the [[no_unique_address]] attribute can be used to determine if a set of types are unique.
February 2, 2025 at 12:54 AM
ericniebler.com
I'm embarrassingly excited about what constexpr exceptions can do to improve the compile-time diagnostics of Senders.
Introduction The hardest part of writing a sender algorithm is often the computation of its completion signatures, an intricate meta-programming task. Using sender algorithms incorrectly leads to large, incomprehensible errors deep within the completion-signatures meta-program. What is needed is a way to propagate type errors automatically to the API boundary where they can be reported concisely, much the way exceptions do for runtime errors. Support for exceptions during constant-evaluation was recently accepted into the Working Draft for C++26. We can take advantage of this powerful new feature to easily propagate type errors during the computation of a sender’s completion signatures. This significantly improves the diagnostics users are likely to encounter while also simplifying the job of writing new sender algorithms.
January 10, 2025 at 6:06 PM
ericniebler.com
Huh
Snap dialog that reads: Visual Studio Code will quit and update in -1064531426 minutes.
January 7, 2025 at 10:48 PM
ericniebler.com
is there any way at all to suppress this warning on gcc-10?

godbolt.org/z/c1Tsd4Pvs

and if you are about to reply "why are you writing code like that?" just stop right there. i have reasons.
December 19, 2024 at 10:04 PM
ericniebler.com
Go to Seattle. Do crimes.
Home intruder stole remote, dropped it before fleeing.
December 4, 2024 at 8:10 PM
ericniebler.com
Just when you think you understand C++ templates...

I'm a little surprised that I can't SFINAE on the evil "pack expansion into non-pack parameter" error. Is there a way to change the implementation of `call` or `callable` to get the following code to compile?

godbolt.org/z/Pj9G11sr3
a screenshot of some C++ code trying to detect whether a meta-callable is callable with a set of arguments.
November 30, 2024 at 9:34 PM
ericniebler.com
Windows dev #1:

#define interface struct

Windows dev #2:
Ren of Ren & Stimpy giving the thumbs up
November 23, 2024 at 9:44 PM
ericniebler.com
I'll see you and raise
November 22, 2024 at 12:59 AM
ericniebler.com
When I started programming, PC gaming looked like this.
Green monochrome screen with intro to Zork on screen
November 15, 2024 at 5:41 AM
ericniebler.com
i hadn't quite realized that, within a class template, nested types are not instantiated until they are actually used.

in other words, the following actually compiles.
November 13, 2024 at 1:56 AM