I went to understand a simdjson PR from @lemire and one thing led to another and I, uh, accidentally prompted @GeminiApp into teaching me how to write a compile-time Lisp interpreter in C++20. consteval is wild. As one does. #cpp20 Source: godbolt.org/z/jqb3jK4ad

prasincs's tweet image. I went to understand a simdjson PR from @lemire and one thing led to another and I, uh, accidentally prompted @GeminiApp into teaching me how to write a compile-time Lisp interpreter in C++20.

consteval is wild. As one does. #cpp20

Source: godbolt.org/z/jqb3jK4ad

In my latest blog post, "C++20s concepts with a forward declared type," you'll learn what to watch out for when using an incomplete type. andreasfertig.com/blog/2025/11/c… #cplusplus #cpp #cpp20


[#cpp20] [Minimal] perfect hashing (at compile-time) godbolt.org/z/GE87neaxG github.com/boost-ext/mph

krisjusiak's tweet image. [#cpp20] [Minimal] perfect hashing (at compile-time)
godbolt.org/z/GE87neaxG
github.com/boost-ext/mph

[#cpp20/#cpp23] Memory allocators - stack_allocator - huge_page_allocator - numa_allocator github.com/qlibs/mem Supports #cpp23 - wg21.link/P0401

krisjusiak's tweet image. [#cpp20/#cpp23] Memory allocators
- stack_allocator
- huge_page_allocator
- numa_allocator

github.com/qlibs/mem

Supports #cpp23 - wg21.link/P0401
krisjusiak's tweet image. [#cpp20/#cpp23] Memory allocators
- stack_allocator
- huge_page_allocator
- numa_allocator

github.com/qlibs/mem

Supports #cpp23 - wg21.link/P0401

man, this thing is so fucking beautiful 😍😁 🖥️ #btop++: Advanced System Resource Monitor Built in #CPP20 as successor to #bashtop & #bpytop, offering comprehensive system monitoring for #Linux #macOS #FreeBSD #NetBSD #OpenBSD 📊 Key Features: Real-time monitoring of CPU,…

michabbb's tweet image. man, this thing is so fucking beautiful 😍😁

🖥️ #btop++: Advanced System Resource Monitor

Built in #CPP20 as successor to #bashtop & #bpytop, offering comprehensive system monitoring for #Linux #macOS #FreeBSD #NetBSD #OpenBSD

📊 Key Features:

Real-time monitoring of CPU,…

[#cpp26 (reflection)* vs #cpp20] design by introspection godbolt.org/z/9x9b45YP5

krisjusiak's tweet image. [#cpp26 (reflection)* vs #cpp20] design by introspection
godbolt.org/z/9x9b45YP5

[#cpp20] is_structural (not ideal but still helpful) godbolt.org/z/aWbWxqYjb

krisjusiak's tweet image. [#cpp20] is_structural (not ideal but still helpful)
godbolt.org/z/aWbWxqYjb
krisjusiak's tweet image. [#cpp20] is_structural (not ideal but still helpful)
godbolt.org/z/aWbWxqYjb

[#cpp20] mp2.0.0 - Back to the Future Meta-Programming! github.com/boost-ext/mp godbolt.org/z/h97qe9feP

krisjusiak's tweet image. [#cpp20] mp2.0.0 - Back to the Future Meta-Programming!
github.com/boost-ext/mp
godbolt.org/z/h97qe9feP
krisjusiak's tweet image. [#cpp20] mp2.0.0 - Back to the Future Meta-Programming!
github.com/boost-ext/mp
godbolt.org/z/h97qe9feP
krisjusiak's tweet image. [#cpp20] mp2.0.0 - Back to the Future Meta-Programming!
github.com/boost-ext/mp
godbolt.org/z/h97qe9feP

[#cpp20] UT2: compile-time first/macro free unit-testing with no dependencies github.com/boost-ext/ut2

krisjusiak's tweet image. [#cpp20] UT2: compile-time first/macro free unit-testing with no dependencies
github.com/boost-ext/ut2
krisjusiak's tweet image. [#cpp20] UT2: compile-time first/macro free unit-testing with no dependencies
github.com/boost-ext/ut2
krisjusiak's tweet image. [#cpp20] UT2: compile-time first/macro free unit-testing with no dependencies
github.com/boost-ext/ut2
krisjusiak's tweet image. [#cpp20] UT2: compile-time first/macro free unit-testing with no dependencies
github.com/boost-ext/ut2

[#cpp20] Opt-in mixins with reflect (gcc, clang, msvc) godbolt.org/z/qfW4aKWfb github.com/boost-ext/refl…

krisjusiak's tweet image. [#cpp20] Opt-in mixins with reflect (gcc, clang, msvc)
godbolt.org/z/qfW4aKWfb
github.com/boost-ext/refl…
krisjusiak's tweet image. [#cpp20] Opt-in mixins with reflect (gcc, clang, msvc)
godbolt.org/z/qfW4aKWfb
github.com/boost-ext/refl…

[#cpp20 vs #cpp26][performance] static reflection - enum_name wg21.link/P2996 (as proposed in the example - likely and hopefully not the final implementation) github.com/boost-ext/refl… godbolt.org/z/WxWdP86qh

krisjusiak's tweet image. [#cpp20 vs #cpp26][performance] static reflection - enum_name
wg21.link/P2996 (as proposed in the example - likely and hopefully not the final implementation)
github.com/boost-ext/refl…
godbolt.org/z/WxWdP86qh

In my latest blog post, "C++20s concepts with a forward declared type," you'll learn what to watch out for when using an incomplete type. andreasfertig.com/blog/2025/11/c… #cplusplus #cpp #cpp20


I went to understand a simdjson PR from @lemire and one thing led to another and I, uh, accidentally prompted @GeminiApp into teaching me how to write a compile-time Lisp interpreter in C++20. consteval is wild. As one does. #cpp20 Source: godbolt.org/z/jqb3jK4ad

prasincs's tweet image. I went to understand a simdjson PR from @lemire and one thing led to another and I, uh, accidentally prompted @GeminiApp into teaching me how to write a compile-time Lisp interpreter in C++20.

consteval is wild. As one does. #cpp20

Source: godbolt.org/z/jqb3jK4ad

Last chance! Enrollment for my C++17/20 course + 1:1 coaching closes tonight. If you want to start 2026 writing cleaner, more reliable C++ and finally feel confident with modern features—this is your moment. Don’t miss it: fertig.to/slcoaching #cpp #cpp20 #cpp17


You can say whatever you want but modern C++ is fun!! I had learned basically what you call C with classes; a pre std 98 C++. Vectors, linked nodes etc were all coded and managed by hand by writing everything from scratch, using char pointers for strings too.. #coding #cpp20

abstrucked's tweet image. You can say whatever you want but modern C++ is fun!! I had learned basically what you call C with classes; a pre std 98 C++. Vectors, linked nodes etc were all coded and managed by hand by writing everything from scratch, using char pointers for strings too.. 

#coding #cpp20

I will be speaking at Meeting C++ 2025! The talk's title is "Embedded-Friendly C++: Features That Make a Difference". Come and join me there! meetingcpp.com/mcpp/schedule/… #cpp #cpp20 #cplusplus


[#cpp20] [Minimal] perfect hashing (at compile-time) godbolt.org/z/GE87neaxG github.com/boost-ext/mph

krisjusiak's tweet image. [#cpp20] [Minimal] perfect hashing (at compile-time)
godbolt.org/z/GE87neaxG
github.com/boost-ext/mph

#cpptricks #Cpp20 Convert string to binary

TejasMundhe17's tweet image. #cpptricks #Cpp20 
Convert string to binary

bool型の正体。 #cpp20 #cpp

you_7se's tweet image. bool型の正体。
#cpp20 #cpp

#cpp17 #cpp20 C++ — pointer to pointer to char... excellent! 😉

abychkov's tweet image. #cpp17 #cpp20 C++ — pointer to pointer to char... excellent! 😉

[#cpp20/#cpp23] Memory allocators - stack_allocator - huge_page_allocator - numa_allocator github.com/qlibs/mem Supports #cpp23 - wg21.link/P0401

krisjusiak's tweet image. [#cpp20/#cpp23] Memory allocators
- stack_allocator
- huge_page_allocator
- numa_allocator

github.com/qlibs/mem

Supports #cpp23 - wg21.link/P0401
krisjusiak's tweet image. [#cpp20/#cpp23] Memory allocators
- stack_allocator
- huge_page_allocator
- numa_allocator

github.com/qlibs/mem

Supports #cpp23 - wg21.link/P0401

[#cpp26 (reflection)* vs #cpp20] design by introspection godbolt.org/z/9x9b45YP5

krisjusiak's tweet image. [#cpp26 (reflection)* vs #cpp20] design by introspection
godbolt.org/z/9x9b45YP5

The experience with the std::expected type is much more interesting. #cpp20 #cpp23 #newfeatures

thecompez's tweet image. The experience with the std::expected type is much more interesting.

#cpp20 #cpp23 #newfeatures

#cpp20 Has NaN or doesn't have NaN - it doesn't matter! 😉

abychkov's tweet image. #cpp20 Has NaN or doesn't have NaN - it doesn't matter! 😉

v3 のところのエラーは何でだ? stream が rvalues だからダメなのか? #cpp20

__suica_'s tweet image. v3 のところのエラーは何でだ?

stream が rvalues だからダメなのか?

#cpp20

[#cpp20] mp2.0.0 - Back to the Future Meta-Programming! github.com/boost-ext/mp godbolt.org/z/h97qe9feP

krisjusiak's tweet image. [#cpp20] mp2.0.0 - Back to the Future Meta-Programming!
github.com/boost-ext/mp
godbolt.org/z/h97qe9feP
krisjusiak's tweet image. [#cpp20] mp2.0.0 - Back to the Future Meta-Programming!
github.com/boost-ext/mp
godbolt.org/z/h97qe9feP
krisjusiak's tweet image. [#cpp20] mp2.0.0 - Back to the Future Meta-Programming!
github.com/boost-ext/mp
godbolt.org/z/h97qe9feP

🧠 C++ Challenge! 🚀 Can you identify the problem with how std::optional<> is used in this code? Reply with what you find! No spoilers, just say "Found it!" if you do. 🔍 #cplusplus #cpp23 #cpp20 #cpp24 #programming #Coding #100daysofcodechallenge #100DaysOfHacking #python

thisPtr's tweet image. 🧠 C++ Challenge! 🚀
Can you identify the problem with how std::optional&amp;lt;&amp;gt; is used in this code?

Reply with what you find! No spoilers, just say &quot;Found it!&quot; if you do. 🔍

#cplusplus #cpp23 #cpp20 #cpp24 #programming #Coding #100daysofcodechallenge #100DaysOfHacking #python

I'm excited to share that I've implemented various monadic operations in my error handling library for Freestanding C++! #cpp20

spectr0gram's tweet image. I&apos;m excited to share that I&apos;ve implemented various monadic operations in my error handling library for Freestanding C++!
#cpp20

Made that a while back: #cpp20 #cpp23 std::string interface novelties

hackingcpp's tweet image. Made that a while back:
#cpp20 #cpp23 std::string interface novelties

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