lemire.bsky.social - Profile | ThreadSky | a Reddit-style client for Bluesky

21st Century C++ By Bjarne Stroustrup 1. We are moving to modules (replacing the headers and includes). 2. Use std::span instead of pointer addressing. 3. Adopt concepts. 4. Profiles! cacm.acm.org/blogcacm/21s...

submitted 17 days ago • 1 comment

Thread-safe memory copy lemire.me/blog/2025/02...

submitted 17 days ago • 0 comments

Implementing urlpattern is way, way more difficult than you think it ought to be !!!

submitted 25 days ago • 0 comments

My belief is that programmer time is precious. We should spend time... Fixing bugs. Adding new features. Improving the performance. Patching code to silence false positives from disabled-by-default static analyzers is wasteful. I do not mind if others do it, but I avoid such work.

submitted 27 days ago • 2 comments

Regular expressions are the code equivalent of "with great power comes great responsibility" #regex

submitted 32 days ago • 0 comments

Regular expressions can blow up! lemire.me/blog/2025/01...

submitted 32 days ago • 0 comments

Thrilled to announce our latest publication in Frontiers in Artificial Intelligence! Our work is entitled "Shaping Integrity: Why Generative Artificial Intelligence Does Not Have to Undermine Education." www.frontiersin.org/journals/art... #AIinEducation

submitted 86 days ago • 17 comments

The simdutf library is used by many important systems including major Web browsers. We support SSE2, AVX2, NEON, AVX-512, RISC-V, LoongArch64... But we do not currently support accelerated processing for POWER processors. If someone is interested in helping out... github.com/simdutf/simd...

submitted 34 days ago • 1 comment

Checking whether an ARM NEON register is zero lemire.me/blog/2025/01...

submitted 37 days ago • 0 comments

JavaScript hashing speed comparison: MD5 versus SHA-256 lemire.me/blog/2025/01...

submitted 46 days ago • 1 comment

We are looking into building a benchmark for URLPattern. If you use URLPattern in the real world, what is your usage pattern?

submitted 49 days ago • 2 comments

Counting the digits of 64-bit integers lemire.me/blog/2025/01...

submitted 50 days ago • 0 comments

It appears that prior to release 14, Apple LLVM did not really support C++20 concepts although it claims that it does. The following ugly hack might be needed: #if defined(APPLE) && defined(clang) #if __clang_major__ <= 13 //... #endif #endif @yagiznizipli.com

submitted 51 days ago • 1 comment

The latest release of the simdutf C++ library (6.0.0) brings in more convenience for C++20 users. While you used to have to provide both a pointer and a size parameter... often you can now just pass your container...

submitted 51 days ago • 1 comment

Special mention to @peterdimov.bsky.social and @guidovranken.bsky.social for spotting the problem:

submitted 54 days ago • 1 comment

In the ada C++ library, we are currently stuck with a GCC puzzle. We cannot seem to return an std::vector from a function without stack buffer overflow. Source: github.com/ada-url/ada/... We have been at this for over a week.

submitted 54 days ago • 0 comments

How does your URL parser handle Unicode? lemire.me/blog/2025/01...

submitted 55 days ago • 0 comments

Indexing the bluesky social network with Roaring Bitmaps. jazco.dev/2024/04/20/r...

submitted 57 days ago • 1 comment

Efficient In-Place UTF-16 Unicode Correction with ARM NEON lemire.me/blog/2024/12...

submitted 59 days ago • 0 comments

Simpler and faster parsing code with std::views::split lemire.me/blog/2024/12...

submitted 67 days ago • 0 comments

Accessing the attributes of a struct in C++ as array elements? lemire.me/blog/2024/12...

submitted 73 days ago • 0 comments

Our paper, "Parsing millions of URLs per second", written with @lemire.bsky.social became one of the most read articles in Journal of Software: Practice and Experience. onlinelibrary.wiley.com/journal/1097...

submitted 86 days ago • 1 comment

Graduate degrees are overrated Though I have many brilliant graduate students, I love working with undergraduate students. And I am not at all sure that you should favor people with graduate degrees, given a choice. lemire.me/blog/2024/11...

submitted 98 days ago • 1 comment

How fast can you validate UTF-8 strings in JavaScript? When you recover textual content from the disk or from the network, you may expect it to be a Unicode string in UTF-8. How might you validate a UTF-8 string in a JavaScript runtime? lemire.me/blog/2023/12/0…

submitted 449 days ago • 0 comments

Reminder: The novel Rainbows End, written two decades ago, predicted that we would see AGIs emerge in 2025. lemire.me/blog/2015/09...

submitted 453 days ago • 0 comments

“Fifteen government departments have been monitoring the social media activity of potential critics and compiling “secret files” in order to block them from speaking at public events” www.theguardian.com/politics/202...

submitted 457 days ago • 1 comment

Land use versus cereal production.

submitted 458 days ago • 0 comments

How is electricity produced?

submitted 458 days ago • 0 comments

"We found that the incidence of self-reported COVID-19 was 33% higher in those wearing face masks often or sometimes, and 40% higher in those wearing face masks almost always or always, compared to participants who reported wearing face masks never or almost never." www.cambridge.org/core/service...

submitted 459 days ago • 0 comments

Burn acreage in the US

submitted 462 days ago • 0 comments

"China consumes as much cement every two years as the U.S. did over the entire 20th century." www.sustainabilitybynumbers.com/p/china-us-c...

submitted 462 days ago • 0 comments