NEWS: htmx v4 is under active development and is now in beta, with a target release date of Summer '26! More details at https://four.htmx.org introduction htmx gives you access to AJAX, CSS Transitions, WebSockets and Server Sent Events directly in HTML, using attributes, so you can build modern user interfaces with the simplicity and power of hypertext htmx is small (~16k min.gz’d), dependency-fr
May 19th, 2022 @ justine's web page Logging C Functions One of my favorite features of the Cosmopolitan Libc runtime is its --ftrace flag that logs C function calls. It's the simplest system for debugging programs I've ever used and it surprises me that I found no evidence of someone having invented it before. Here's one of its most important use cases. Have you ever had you debugger stupified by
TL;DR; We are changing std::sort in LLVM’s libcxx. That’s a long story of what it took us to get there and all possible consequences, bugs you might encounter with examples from open source. We provide some benchmarks, perspective, why we did this in the first place and what it cost us with exciting ideas from Hyrum’s Law to reinforcement learning. All changes went into open source and thus I can
Botan (Japanese for peony flower) is a cryptography library released under the permissive Simplified BSD license. Botan's goal is to be the best option for production cryptography by offering the tools necessary to implement a range of practical systems, such as TLSv1.3, X.509 PKI, modern AEAD ciphers, support for PKCS#11 and TPM hardware, memory-hard password hashing, and post quantum cryptograph
All users of TCMalloc should consult the following documentation resources: The TCMalloc Quickstart covers downloading, installing, building, and testing TCMalloc, including incorporating within your codebase. The TCMalloc Overview covers the basic architecture of TCMalloc, and how that may affect configuration choices. The TCMalloc Reference covers the C and C++ TCMalloc API endpoints. More advan
This is a reference implementation of a C language mechanism and library-based implementation for error handling and deferred cleanup adapted from similar features in the Go Programming Language. This mechanism improves the of cleanup and error handling over existing language features. The intent is to integrate the basic tools that are provided here into the C standard by providing a new library
Raspberry Pi 4 (BCM2711) has a GPU named VideoCore VI QPU in its SoC. The basic instruction set (add/mul ALU dual issue, three delay slots et al.) remains the same as VideoCore IV QPU of Raspberry Pi Zero/1/2/3, and some units now perform differently. For instance, the TMU can now write to memory in addition to read, and it seems that the VPM DMA is no longer available. Theoretical peak performanc
Opus Interactive Audio Codec Overview Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet, but is also intended for storage and streaming applications. It is standardized by the Internet Engineering Task Force (IETF) as RFC 6716 which incorporated technology from Skype’s SILK codec and Xiph.Org’s CELT
In short, BlurHash takes an image, and gives you a short string (only 20-30 characters!) that represents the placeholder for this image. You do this on the backend of your service, and store the string along with the image. When you send data to your client, you send both the URL to the image, and the BlurHash string. Your client then takes the string, and decodes it into an image that it shows wh
COBS (COmpact Bit-sliced Signature index) is a cross-over between an inverted index and Bloom filters. Our target application is to index k-mers of DNA samples or q-grams from text documents and process approximate pattern matching queries on the corpus with a user-chosen coverage threshold. Query results may contain a number of false positives which decreases exponentially with the query length a
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