in c++, function types have a "language linkage" associated with them: this is either "C++", "C", or some other implementation-defined language. and the standard very explicitly states that Two function types with different language linkages are distinct types even if they are otherwise identical...
Martin Uecker, 2026-07-14
As of writing, the Zilog Z80 processor was officially launched 50 years ago, in July of 1976, less than 4 years after the last human had walked on the moon, decades closer to WWII than to the present day, roughly at a half way point between the Kennedy assassination and the...
With a debugger skill for AI agents, debug profiles for simplified debugger configuration, and support for C++26 reflection.
What does a memory compiler actually do? From T-diagrams and 6T bitcells to GDS tiling, LVS, and the symmetry between memory compiler tiling and ML compiler tiling.
As long as value classes are a preview feature, they can’t generally be adopted in the JDK libraries (which are not compiled with `--enable-preview`). However, we felt it was important for this JEP to provide users with a “starter kit” of some value classes out of the box, and to ease into any mi...
Arteris expands its collaboration with Arm to broaden the use of the Cycuity Radix hardware security assurance platform across future processor development programs.
By Blog Staff | Jul 15, 2026 01:20 PM | Tags: None
Run Arm64/x86-64 Linux ELF binaries on macOS Apple Silicon - sysprog21/elfuse
The ReSharper 2026.2 Release Candidate is ready for you to try. This release takes the first step toward ACP-based agent support in Visual Studio, starting with Junie in Preview, and sharpens every
ok so i've been reading the "specification" from "the c programming language" (1st edition). alongside that, i've also been reading the c89 rationale document, and the source code for the 7th edition unix c compiler. i've also been reading some other related stuff.
Hi! Please tell me, what is the latest version of C++ supported by the zig c++ compiler? Thanks!
A personal blog, by a programmer and IT expert. Essays, Articles, Guides, and Recipes. As well as Code, Quotes, and Links.
Why C strings suck—and why length-based strings are the right design.
If you’ve ever tried using type erasure for something more complicated than std::any or std::function, you’ve either written 100+ lines of easy-to-mess-up code or reached for a boilerplate-heavy library like Boost.TypeErasure or Folly.Poly. rjk::duck uses the magic that is C++26 reflection to rem...
From a small 1D array of floats to a proper autograd capable of training tinyML models, explaining every step.
CPU designs must evolve to keep up with changing workloads.
I don’t know what tool I really need but I would like (to shoot my leg again) and just have force cast So I have two C libraries (both of which I independently use) and one of them exposes API which takes as parameter type from another one //lib1.h struct lib1_struct {...} //lib2.h #include <l...
Hi! How many times does the import function include the standard library in each translation unit? Is it cached or included in every translation unit, as in C++? If I worded the question incorrectly, forgive me! Thanks!
Cameron DaCamara has created a super-fast, super-customizable editor named fred. It has a streamlined but powerful plugin system based entirely on C, and all...
By Blog Staff | Jul 13, 2026 01:16 PM | Tags: None
Map how Claude built two FreeBSD kernel exploit chains, escaping a jail past KASLR and SMEP/SMAP, with a human still in the loop.
Worker pools, channels, and mutexes - backed by pthreads.
Hot on the heels of Adiuvo’s introduction of the Explorer FPGA board (see “Need a low-cost FPGA dev board? Check out Adiuvo Engineering’s $99 Explorer board with an AMD Artix UltraScale+ FPGA”), th…
The clock is ticking! You have until July 15th to submit to the CppCon 2026 Poster Program.
Let’s start with a quick recap for those of you who are just tuning in (and for those who have been tuned in for a while but are likely very lost): In the late 80s, Psion developed their own message-passing Object Oriented C dialect with its own markup language. They did this because Psion be Psi...
Hi guys, I've been working on Regdrift, my first open-source project. It's a CLI and GitHub Action...
Ask most people to name the chip that started modern electronics and they will say the...
If you've started learning DSA, you've probably run into the term STL more times than you can count....
Firmware updates are one of the places where an embedded prototype either becomes maintainable or...
Explore Odin, a pragmatic programming language designed for high-performance, modern systems-level development, focusing on its unique features and practical applications.
Challenge We're given a single ELF binary, bank: $ file bank bank: ELF 64-bit LSB...
Summary pscheme.py implements a toy "encryption" scheme that encodes each 4-byte chunk of...
Learn the Odin Programming Language and demystify low-level programming
The constraints for x, y is 10^9, given these constraints the problem cannot be solved by actually...
Colibri — รัน GLM-5.2 (744B MoE) บนเครื่อง 25GB RAM ด้วย Pure C ไฟล์เดียว โดย Nokka...
Reflection is one of those features every .Net/C# developer has used directly or indirectly. This...
Trying to port one of my projects to 0.16 but getting a failure on C import: src/main.zig:986:12: error: C import failed const tb = @cImport({ thread 111408 panic: integer overflow /usr/local/lib/zig/std/zig/ErrorBundle.zig:218:27: 0x123d049 in renderErrorMessage (build) s...
When I took my first university programming class, my professor taught us to define constants using...
UI text diff. Contribute to cdacamar/gap development by creating an account on GitHub.
Portable games console, designed from scratch: CPU, graphics, PCB, and the kitchen sink - Wren6991/RISCBoy
Linux 7.2 Improves Multi-GPU Displays, M3 Support, Mesa Rusticl Defaults Arm Mali ...
The other day I was iterating on a small C program with entr:
Homebrew 8-bit computer powered by a Z80. Retrocomputing and electronics subjects
There are many ways to optimize code for GPUs. In this post, you’ll learn how kernel fusion can improve memory bandwidth and reduce kernel launch overhead, along with multiple ways to apply it in…
Microchip announces that its MPLAB XC Pro compilers and MPLAB ML development suite are now free of charge to customers.
Cpp2Rust: Automatic Translation of C++ to Safe Rust - Cpp2Rust/cpp2rust
eSOL launches eXRP, a real-time 3D engine, bringing game engine visualization to embedded workflows across industrial sectors.
Close your eyes and imagine the following scene. No. That won’t work, will it? Let’s try doing this a different way. Keep your eyes open and imagine they’re closed. Visualize a future timeline wher…
OpenAI found two unrelated bugs masquerading as one in ChatGPT's data infrastructure. Silent hardware corruption on one Azure host and an 18-year-old race condition in GNU libunwind's setcontext funct
Hello everyone, I have a question about using realloc on an aligned slice. Say I have a struct with an aligned slice like this: struct { ... data: []align(64) i32, ... } And I initialize it with a capacity of 9: allocator.alignedAlloc(i32, mem.Alignment.@"64", 9); My understandi...
Portwell, Inc., a global innovator in industrial and embedded computing solutions, announced the launch of PCOM-B65C, a high-performance COM Express® Type 6 Compact module powered by the NPU-int…
Renesas’s acquisition of Pictorus could transform the Altium-powered Renesas 365 embedded design platform into a more intelligent, unified toolchain.
By Marc Gregoire | Jul 6, 2026 10:30 AM | Tags: c++26 becppsymposium2026 becpp
This powerful tool runs on our RP2350 microcontrollers and is designed to help the user survive unforgiving terrain.
By Blog Staff | Jul 2, 2026 01:05 PM | Tags: None
Here are the articles, videos, tools, and announcements we’ve been excited about in March through June 2026.
By Blog Staff | Jun 30, 2026 03:13 PM | Tags: None
Version 0.56.0 of the Arduino® Core on Zephyr is live – and it’s a sizable update to the earlier release. Think optimized performance, expanded hardware capabilities. We’re still smoothing some edges towards the official Stable release, but if you’ve been testing the beta, prepare for a meaningfu...
By ChuckAllison | Jun 29, 2026 05:44 PM | Tags: None
The New York May 28 world premiere event for C++: The Documentary was followed by a live panel discussion with Matt Godbolt (moderator), Bjarne Stroustrup, Gabriel Dos Reis, Nina Ranns, Eric Lubin, and Herb Sutter. The video recording of that panel is being released worldwide on YouTube tomorrow...
The Modulino family keeps growing, to allow you to easily expand your projects with new tiny modules that bring additional functionalities – in a snap! With Modulino Hub, Modulino Extender and Modulino Motors joining the range, you now have no less than 15 easy options to make building your next...
By Blog Staff | Jun 24, 2026 03:07 PM | Tags: None
By Meeting C++ | Jun 24, 2026 12:45 AM | Tags: meetingcpp intermediate community c++26 c++23 c++20 c++17 bas...
Discover the key features of C# 14, the latest language version shipping with .NET 10. This blog breaks down extension members, the field keyword, null-conditional assignment, implicit Span conversions, and more — explained simply with practical, easy-to-follow code examples for professional .NET...
By Blog Staff | Jun 23, 2026 03:30 PM | Tags: None
By Nico Josuttis | Jun 23, 2026 03:28 PM | Tags: None
The deadline for Early Bird Registration is this Friday, June 26th!
By Blog Staff | Jun 21, 2026 11:53 PM | Tags: None
FIDO authenticators, VirtIO input, a native_sim Linux LED driver, the LR1121, and an A320 that isn't a plane — another packed week of Zephyr.
By Marc Gregoire | Jun 19, 2026 09:27 AM | Tags: c++26 becppsymposium2026 becpp
By Marc Gregoire | Jun 19, 2026 09:23 AM | Tags: c++26 becppsymposium2026 becpp
Registration is now open for CppCon 2026! The conference starts on September 12 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting videos of some of the top-rated talks from last year's conference. Here’s another CppCon talk video we hope you...
Every year, CppCon promises you a strong keynote lineup, and every year we deliver. But this year we get to do something rarer: announce a once-in-a-lifetime keynote panel of interest not just to C++ developers, but to our whole industry.
By Blog Staff | Jun 17, 2026 03:27 PM | Tags: None
By Blog Staff | Jun 16, 2026 03:02 PM | Tags: None
Volunteer at CppCon 2026!
By Blog Staff | Jun 15, 2026 03:21 PM | Tags: None
By Blog Staff | Jun 15, 2026 01:08 AM | Tags: None
Suppose that you have a configuration file in JSON. Something like this: { "width": 1920, "height": 1080, "fullscreen": true, "title": "My Game", "volume": 0.8 } Normally you ship this file alongside your program, open it at startup, read it, and parse it. That is a lot of work for data that neve...
By Blog Staff | Jun 12, 2026 12:17 PM | Tags: None
By Meeting C++ | Jun 12, 2026 03:40 AM | Tags: meetingcpp events community
Neural network techniques are increasingly used in computer graphics to boost image quality, improve performance, and streamline content creation. Approaches like super resolution, denoising…
NVIDIA CUDA 13.3 brings new capabilities and performance optimizations to developers across the CUDA ecosystem. The launch of NVIDIA CUDA Tile programming in C++, enables high-level…
Developers can now use NVIDIA CUDA Tile programming within large existing C++ GPU codebases to develop highly optimized GPU kernels using tile-based abstractions. NVIDIA CUDA Tile…
By Blog Staff | Jun 10, 2026 03:00 PM | Tags: None
By Blog Staff | Jun 8, 2026 02:57 PM | Tags: None
The Cppcon 2026 Field Trip will be a visit to Morrison, Colorado – a town on the edge of the Rockies, famous for Red Rocks, the world renown music venue! No concerts are being held on September 13th, but that is a perfect opportunity to enjoy the scenery, town, and museums that Morrison has to of...
By Blog Staff | Jun 4, 2026 02:54 PM | Tags: None
Sponsored by HRT and produced by CultRepo, C++: The Documentary is about to be released worldwide on YouTube on Thursday at 20:00 UTC. Click Notify me on the YouTube Premiere page to get a reminder when it goes live.
By Blog Staff | Jun 2, 2026 02:51 PM | Tags: None
Goodnotes has been helping millions of users take handwritten notes on iPad for over a decade, earning recognition as Apple’s iPad App of the Year in 2022. Today, the same Swift code that powers our iOS app also runs seamlessly in web browsers through WebAssembly, delivering the exact same ink re...
By Meeting C++ | May 31, 2026 05:37 AM | Tags: meetingcpp community
Are you doing something cool with C++? Got a great new library, technique, or tool?
By Meeting C++ | May 29, 2026 07:22 AM | Tags: meetingcpp community c++23 c++11
By Blog Staff | May 27, 2026 02:48 PM | Tags: None
Roll-on nanoscale membranes make circuits that stretch across three layers of silicon
By Blog Staff | May 26, 2026 03:56 PM | Tags: None
Developers building add-ons for the new Godot Asset Store can now benefit from new and improved support from JetBrains Rider.
Long division can be arduous - division in general is something that even computer processors try to avoid with a simple technique. Matt Godbolt demos it and then shows how a simple C program can cause a compiler to employ this trick. Computerphile is supported by Jane Street. Learn more about...
By Blog Staff | May 25, 2026 02:46 PM | Tags: None
Every machine connected to the Internet has an address called an IP address. Originally, these addresses were 32-bit integers (IPv4), giving a theoretical maximum of about four billion distinct addresses. We are all familiar with these addresses (e.g., 192.168.0.0). There was a big fuss about how...
By Blog Staff | May 21, 2026 02:42 PM | Tags: None
Join us to discover how the new ZEISS Crossbeam 750 delivers precision and clarity—every time—for demanding FIB-SEM workflows. Designed for extremely challenging TEM lamella preparation, tomography, advanced nanofabrication, and APT‑ready lift‑out, Crossbeam 750 combines a new Gemini 4 SEM object...
Home » Blog » 2026 » May » The road to 'import boost': a library developer's journey into C++20 modules -- Rubén Pérez Hidalgo
By Marc Gregoire | May 20, 2026 10:00 AM | Tags: community becpp
By Andrey Karpov | May 20, 2026 03:03 AM | Tags: None
By Blog Staff | May 19, 2026 02:38 PM | Tags: None
By Meeting C++ | May 19, 2026 07:47 AM | Tags: meetingcpp events community
Hi, my name is Andrew, or ‘Sock’ to most people. This blog is where I share my experiences as I journey into ASP.NET Core.
By Blog Staff | May 18, 2026 03:45 PM | Tags: None
Converting a 64-bit integer to its decimal string representation is a mundane task that shows up everywhere: logging, JSON serialization, CSV output, debug prints, etc. In C++, you might use std::to_chars, sprintf, or some library routine. How do these functions work? At a high level, they repeat...
By Andrey Karpov | May 18, 2026 07:08 AM | Tags: sast pvs-studio cmake
By Marc Gregoire | May 16, 2026 01:41 AM | Tags: c++26 becppsymposium2026 becpp
By Blog Staff | May 15, 2026 03:41 PM | Tags: None
Sponsored by HRT and produced by CultRepo, we’re pleased to share the official trailer for C++: The Documentary.
The Applied Materials EPIC Center re-engineers the semiconductor R&D; model
By Blog Staff | May 13, 2026 02:35 PM | Tags: None
By Blog Staff | May 12, 2026 03:39 PM | Tags: None
CppCon is running an Attendance Support Ticket program. These free tickets are for people who would not be able to attend otherwise. This program is limited to conference tickets and doesn’t include support for transportation or lodging. This is an open program, but reasons to apply may include f...
By Blog Staff | May 11, 2026 02:32 PM | Tags: None
CppCon continues to grow as a conference that reflects the full breadth of modern C++ practice. One of the ways we support that breadth is through dedicated tracks. These tracks highlight areas of sustained interest in the community and create space for deeper, more focused conversations.
Suppose that x is a variable of an unsigned type. In C/C++, it could be of type size_t for example. You have an expression like 6 * x and you want to know whether 6 * x overflows. That is, you want to know if 6 * x exceeds the range of values that can … Continue reading Checking multiplication ov...
"Here is a walkthrough of our solutions to two C/C++ security challenges from the new C/C++ chapter in the Testing Handbook: a Linux ping program with an `inet_ntoa` global buffer gotcha and command injection, and a Windows driver with registry type confusion bugs that can escalate from local DoS...
We sometimes have to look for a value in a sorted array. The simplest algorithm consists in just going through the values one by one, until we encounter the value, or exhaust the array. We sometimes call this algorithm a linear search. In C++, you can get the desired effect with the std::find fun...
![Removing byte[] allocations in .NET Framework using ReadOnlySpan<T>](https://wps.hkprog.org/storage/posts/images/2b62971f765735b6040b43e6567d2ca7d517b021.png)
Hi, my name is Andrew, or ‘Sock’ to most people. This blog is where I share my experiences as I journey into ASP.NET Core.
Consider the following problem. Given a string, you must match all of the ASCII white-space characters (\t, \n, \r, and the space) and some characters important in JSON (:, ,, [, ], {, }). JSON is a text-based data format used for web services. A toy JSON document looks as follows. { "name": "Ali...
B is the forerunner to C - but seemed lost - Angelo Papenhoff decided to change it and brought it back from the brink! Here he tries to recreate Brian Kernighan's original 'Hello World' with a few wrinkles! Angelo's B compiler is here: https://github.com/aap/b Angelo's emulators: https://github....
Initially, we had languages like Fortran (1957), Pascal (1970), and C (1972). Fortran was designed for number crunching and scientific computing. Pascal was restrictive with respect to low-level access (it was deliberately "safe", as meant for teaching structured programming). So C won out as a l...
"We released a new Testing Handbook chapter providing a comprehensive security checklist for C and C++ code review, covering Linux, Windows, and seccomp environments."
Principles of mechanical sympathy for creating performant software: Memory access patterns, false sharing, the single-writer principle, and natural batching.
Suppose you have several strings and you want to count the number of instances of the character ! in your strings. In C++, you might solve the problem as follows if you are an old-school programmer. size_t c = 0; for (const auto &str : strings) { c += std::count(str.begin(), str.end(), '!'); } Yo...
Most embedded developers use #pragma pack(1) to create portable binary record formats. But pack(1) forces the compiler to byte-decompose every field access – even perfectly aligned fields – resulting in 7x more operations on RISC-V, ARM, and Xtensa. This post shows the problem, the fix (packed +...
With heartfelt thanks to the many people who have already tried hs-bindgen and given us feedback, we have steadily been working towards the first official release (see Contributors for the full list). In case you missed the announcement of the first alpha, hs-bindgen is a tool for automatic const...
The next C++ standard (C++26) is getting exciting new features. One of these features is compile-time reflection. It is ideally suited to serialize and deserialize data at high speed. To test it out, we extended our fast JSON library (simdjson) and we gave a talk at CppCon 2025. The video is out...
Modern processors have the ability to execute many instructions per cycle, on a single core. To be able to execute many instructions per cycle in practice, processors predict branches. I have made the point over the years that modern CPUs have an incredible ability to predict branches. It makes b...
Suppose that you have a record of your sales per day. You might want to get a running record where, for each day, you are told how many sales you have made since the start of the year. day sales per day running sales 1 10$ 10 $ 2 15$ 25 $ 3 5$ 30 … Continue reading Prefix sums at tens of gigabyte...
Here are the articles, videos, and tools we’ve been excited about in February 2026.
Well-Typed are delighted to announce a release preview of hs-bindgen, a tool for automatic Haskell binding generation from C header files. We hope to invite some feedback on this initial release and then publish the first “official” version 0.1 in a few weeks. No backwards incompatible changes ar...
Here are the articles, videos, and tools we’ve been excited about in January 2026.
Given any string of bytes, you can convert it to an hexadecimal string by mapping the least significant and the most significant 4 bits of byte to characters in 01...9A...F. There are more efficient techniques like base64, that map 3 bytes to 4 characters. However, hexadecimal outputs are easier...
When serializing data to JSON, CSV or when logging, we convert numbers to strings. Floating-point numbers are stored in binary, but we need them as decimal strings. The first formally published algorithm is Steele and White's Dragon schemes (specifically Dragin2) in 1990. Since then, faster metho...
There are many interesting, useful, and fun C libraries in the software ecosystem. While one could go and rewrite these libraries in Swift, usually there is no need, because Swift provides direct interoperability with C. With a little setup, you can directly use existing C libraries from your Swi...
Irrespective of your programming language of choice, calling C functions is often a necessity. For the longest time, the only standard way to call C was the Java Native Interface (JNI). But it was so painful that few dared to do it. I have heard it said that it was deliberately painful so that pe...
Sometimes, people tell me that there is no more progress in CPU performance. Consider these three processors which had comparable prices at release time. The AMD Ryzen 7 9800X3D (Zen 5, with up to 5.3 GHz boost) was released in 2024. The AMD Ryzen 7 7800X3D (Zen 4, with up to 5.1 GHz boost) was …...
How much virtual memory does the following C++ expression allocate on the heap? new char[4096] The answer is at least 4 kibibytes but surely more. Firstly, each heap memory allocation requires some memory to keep track of what has been allocated. You are likely using 8 bytes or so of overhead tha...
Most programmers are familiar with IP addresses. They take the form of four numbers between 0 and 255 separated by dots: 192.168.0.1. In some sense, it is a convoluted way to represent a 32-bit integer. The modern version of an IP address is IPv6 which is usually surrounded by square brackets. It...
Strings in programming are often represented as arrays of 8-bit words. The string is ASCII if and only if all 8-bit words have their most significant bit unset. In other words, the byte values must be no larger than 127 (or 0x7F in hexadecimal). A decent C function to check that the string is ASC...
Posted by Solidity Team on December 18, 2025
Hi, my name is Andrew, or ‘Sock’ to most people. This blog is where I share my experiences as I journey into ASP.NET Core.
Embedded Swift is a subset of Swift that’s designed for low resource usage, making it capable of running on constrained environments like microcontrollers. Using a special compilation mode, Embedded Swift produces significantly smaller binaries than regular Swift. While a subset of the full langu...
Here are the articles, videos, and tools we’ve been excited about in September and October 2025.
Here are the articles, videos, and tools we’ve been excited about in August 2025.
Here are the articles, videos, and tools we’ve been excited about in July 2025.
Discover the story behind this embedded systems roadmap—a structured learning path for hardware and software engineers. It guides you in selecting resources, boosting career growth, and staying current with industry trends.
Diving into the hardware design of an Open Smart Ring project
Here are the articles, videos, and tools we’ve been excited about in June 2025.
Unwinding coredumps on-device using .eh_frame and addr2line.
Using `make` to compile C programs (for non-C-programmers)
Here are the articles, videos, and tools we’ve been excited about in May 2025.
Here are the articles, videos, and tools we’ve been excited about in April 2025.
Limiting the size of Linux coredumps by collecting stacks and metadata for gdb
Steps to debug embedded systems, including several case studies involving stack clobbering, undefined functions, and memory faults
Here are the articles, videos, and tools we’ve been excited about in March 2025.
A deep dive into how std::this_thread::sleep_for() is implemented on ESP32, and why it is broken in IDF v5.
The basics of Linux coredumps, how they’re used at Memfault, and how they’re captured.
