1 HN user recommended this talk1 month2020–2025score 1
Years with an HN recommendation, 2007–2026
Pointed to as the canonical presentation of compile-time regex in C++ and its template metaprogramming, including benchmark results.
Hana Dusikova's CppCon 2018 talk presenting a C++ library that builds regular expressions from compile-time strings, using a C++20 feature. It avoids runtime parsing cost and covers implementation details, problems she hit, and benchmarks.
“A 54:47 presentation at CppCon 2018 is worth more than a thousand words” (HN, 2025)
FYI: This is a C++ template version of compile time regex class. A 54:47 presentation at CppCon 2018 is worth more than a thousand words... see [this video] followup CppCon 2019 video at [link] As the above github repo mentions, more info at [link]
Presentation on compile-time regex class in C++ templates
> Passing strings into a templates ... wouldn't work in C++ ... [this video] Here's an example of parsing regular expressions in C++ at compile time. Code here: [link]
Example of parsing regular expressions at compile time in C++
One of the stated benefits is that the compiler optimizer can optimize the regex state machine that gets created, resulting in significantly faster match times at runtime. There are some benchmarks if you look up her cppcon talk about the library iirc. Edit: here is her talk, at 39 minutes she shares the benchmarks. [this video]
Contains benchmarks of the compile-time regex library
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