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Shared_ptr<T>: the (not always) atomic reference counted smart pointer (2019)

news.ycombinator.com Unknown 2025-11-27 12:34:13

shared_ptr<T>: the (not always) atomic reference counted smart pointer Introduction This is a write-up of the “behavioral analysis” of shared_ptr<T> reference count in GNU’s libstdc++. This smart pointer is used to share references to the same underlaying pointer. The mechanism beneath works by tracking the amount of references through a reference count so the pointer gets freed only after the last reference is destructed. It is usually used in multi-threaded programs (in conjunction with oth

Topics: atomic mov ptr rax rbp

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"This telegram must be closely paraphrased before being communicated" Why?

news.ycombinator.com Unknown 2025-12-02 05:39:47

It appears that it was US military communications doctrine to not send the exact same message twice using different encryption ("none" counting as one type of encryption), and the term of art for changing a message to avoid that was indeed "paraphrase". I managed to dig up a US Army document on Cryptology from roughly that era that appears to discuss paraphrasing. The document in question is Department of the Army Technical Manual TM 32-220(pdf), dated 1950, titled "BASIC CRYPTOGRAPHY". It appa

Topics: cryptographic message original plain text

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I Love How Streamlined the Excellent Pixel 9 Pro Is, and It’s $99 Off for Labor Day

cnet.com See Full Bio 2025-12-01 23:13:00

Labor Day deal: The Google Pixel 9 Pro is currently down to $900 at Best Buy, which is a $99 savings. While it's not the lowest price we've seen, it's still a decent discount thanks to Labor Day sales. Plus, Best Buy has a trade-in program that could save you hundreds more. We don't know how long this offer will last so if you've been wanting this phone, it may well be worth picking one up this weekend. CNET's key takeaways The Google Pixel 9 Pro is currently on sale with $99 off After months

Topics: android google phone pixel pro

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You Can Play the New Gears of War Game Now on Xbox Game Pass

cnet.com See Full Bio 2025-12-02 05:00:06

Gears of War is one of the most iconic Xbox series, spawning sequels, spin-offs and books. I fell in love with the series almost 20 years ago when the original landed on the Xbox 360. Microsoft brought the remastered edition of the game, called Gears of War: Reloaded, to Xbox Game Pass and I can't wait to play it. Xbox Game Pass Ultimate, a CNET Editors' Choice award pick, offers hundreds of games you can play on your Xbox Series X, Xbox Series S, Xbox One, Amazon Fire TV, smart TV and PC or mo

Topics: game pass play subscribers xbox

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This Threshold-Climbing Robot Vacuum Overcame Every Obstacle in My Home and It's $440 Off for Labor Day

cnet.com See Full Bio 2025-12-02 05:54:00

Labor Day deal: It's still Labor Day weekend, which means Amazon and other retailers have dropped their prices on all kinds of items from tech to mattresses, including the one of the top rated robot vacuums on the market. Right now the Dreame X50 Ultra is $440 off the regular price at Dreame, which brings the price down to $1,260. New customers can also save an additional 10% by entering their emails. If you prefer to do your shopping on Amazon, the Dreame X50 Ultra is currently $400 off there,

Topics: cleaning dreame robot vacuum x50

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These Newly Discovered Cells Breathe in Two Ways

wired.com Jake Buehler 2025-12-02 04:00:00

The team members went through a process of incrementally determining what elements and molecules the bacterial strain could grow on. They already knew it could use oxygen, so they tested other combinations in the lab. When oxygen was absent, RSW1 could process hydrogen gas and elemental sulfur—chemicals it would find spewing from a volcanic vent—and create hydrogen sulfide as a product. Yet while the cells were technically alive in this state, they didn’t grow or replicate. They were making a sm

Topics: bacteria boyd oxygen rsw1 said

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Key Pixel Settings to Change on Your Google Phone

wired.com Julian Chokkattu 2025-12-02 08:00:00

Google's Pixel phones are chock-full of helpful, smart features, and they capture some of the best-looking photographs on a mobile device. It's why they're among our favorite Android smartphones. But like several of its peers, Google doesn't have many of its best features turned on by default. For example, Call Screening blocks unwanted phone calls on your behalf, and you need to turn it on yourself. That's what I'm here for. I test smartphones for a living, and I'm constantly switching to a ne

Topics: calls features ll phone pixel

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Acer just announced a Google TV box with all the ports you want (Update)

androidauthority.com Unknown 2025-12-02 03:50:26

Acer TL;DR Acer has announced the Acer 4K UHD Google TV Box. The gadget includes USB-A connectivity, an Ethernet port, a microSD card slot, and an S/PDIF Optical Audio port. The new streaming box has only launched in South Africa for now and costs ~$80. Update: August 31, 2025 (1:30 AM ET): Acer Africa has now issued corrections to its original press release, and its Google TV box is a little less impressive than it originally claimed. The company told Android Authority that the Acer 4K UHD

Topics: acer box company google tv

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Daily Hub is one of the worst Pixel features I’ve ever used

androidauthority.com Unknown 2025-12-02 09:00:44

Joe Maring / Android Authority One of my favorite reasons for using a Google Pixel phone is the incredible suite of Pixel-exclusive software features. Whether it’s Now Playing automatically identifying songs or using the numerous Call Assist tools to make phone calls less of a headache, it’s these features that make using a Pixel so special. Google has ushered in a load of additional software tricks with the Pixel 10 series, one of them being Daily Hub. Daily Hub is supposed to be a one-stop s

Topics: daily google hub pixel topics

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I threw out my ice packs after trying this smart cooler - and it's $440 off right now

zdnet.com Maria Diaz 2025-12-02 08:00:18

ZDNET's key takeaways The Anker Solix EverFrost 2 is available for $1,349 but currently on sale. This cooler works as a portable mini-fridge, with dual-zone cooling and the capacity to freeze or refrigerate. The Anker Solix EverFrost 2 is bulky and heavy, and it only comes with one battery so you have to purchase the second to reach the full 3.2 day capacity. View now at Best Buy View now at Amazon more buying choices Follow ZDNET: Add us as a preferred source on Google. As a teenager, I dre

Topics: anker battery cooler everfrost solix

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Red: A programming language inspired by REBOL

news.ycombinator.com Unknown 2025-12-02 00:14:05

Red Programming Language Red is a programming language strongly inspired by Rebol, but with a broader field of usage thanks to its native-code compiler, from system programming to high-level scripting, while providing modern support for concurrency and multi-core CPUs. Red tackles the software building complexity using a DSL-oriented approach (we call them dialects) . The following dialects are built-in: Red/System: a C-level system programming language compiled to native code Parse: a power

Topics: console gui hello linux red

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Compositional Datalog on SQL: Relational Algebra of the Environment

news.ycombinator.com Hey There Buddo 2025-11-28 08:09:50

I spent some time before making Datalogs that translated into SQL. https://www.philipzucker.com/tiny-sqlite-datalog/ There are advantages. SQL engines are very well engineered and commonly available. SQLite and DuckDB are a pretty great one-two punch. A new twist on how to do this occurred to me that seems very clean compared to my previous methods. Basically, the relational algebra style of SQL actually meshes with manipulating the Datalog body environments (sets of named variables bindings)

Topics: db edge execute path select

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How Does Timecode Vinyl Work? (Pt. 3)

news.ycombinator.com Jan Claußen 2025-11-28 00:09:18

How Does Timecode Vinyl Actually Work? (Pt. 3) Since its release in 2011, the Traktor Control Vinyl MK2 has sparked curiosity among digital DJs and audio developers alike. Its timecode format stands apart from Serato’s, which we explored in the previous posts. With the MK2 system, Native Instruments introduced a more advanced timecode that boosts resolution and accuracy by applying advanced cryptographic techniques. In this post, we’ll break down how it works at a basic level and how Mixxx is

Topics: bit serato signal text timecode

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xAI sues an ex-employee for allegedly stealing trade secrets about Grok

engadget.com Unknown 2025-12-02 00:00:29

xAI doesn't want its secret recipe for Grok to get out, and it's filing a lawsuit to make sure of that. In a lawsuit filed earlier this week, xAI claimed that former employee Xuechen Li stole the company's confidential info and trade secrets before joining the team at OpenAI. Elon Musk's artificial intelligence company also alleged that Li copied documents from an xAI company laptop to at least one of his personal devices. According to the suit, Li stole "cutting-edge AI technologies with featu

Topics: ai company lawsuit li xai

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The space race is transforming Southern California's economy – again

news.ycombinator.com Staff Writer 2025-12-02 03:32:52

In a giant Long Beach warehouse near where Boeing used to build the C-17 cargo jet, Vast is fabricating what could be the first commercial space station to circle Earth. Just up the road in El Segundo, Varda Space Industries has grown molecular crystals in microgravity with few impurities for pharmaceuticals that one day could be injected in cancer patients. And a little south in Seal Beach, a scrappy company called AstroForge aims to land a satellite on an asteroid just a football field wide

Topics: aerospace company space spacex station

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Hardening Firefox – a checklist for improved browser privacy

news.ycombinator.com Andrew Marder 2025-12-01 17:26:35

This checklist will walk you (and me) through the settings and extensions I use to improve my privacy when using Firefox. If you’re looking for a web browser that offers a high degree of privacy out of the box with minimal setup, Brave is a common choice. However, I prefer Firefox for several reasons: Firefox is developed by the nonprofit organization Mozilla. I value Mozilla’s commitment to open source software. Firefox is not based on Chromium. Brave, like most browsers, is based on Chromi

Topics: firefox https privacy tracking web

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From multi-head to latent attention: The evolution of attention mechanisms

news.ycombinator.com Unknown 2025-12-01 10:45:24

From Multi-Head to Latent Attention: The Evolution of Attention Mechanisms Vinithavn 7 min read · 15 hours ago 15 hours ago -- Listen Share Press enter or click to view image in full size What is attention? In any autoregressive model, the prediction of the future tokens is based on some preceding context. However, not all the tokens within this context equally contribute to the prediction, because some tokens might be more relevant than others. The attention mechanism addresses this by allow

Topics: attention context key query vectors

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Disney Gives New Looks at ‘Toy Story 5,’ ‘Zootopia 2,’ and More

gizmodo.com Justin Carter 2025-12-02 03:15:20

Originality is still alive at Disney, and it’s taking the form of 2026’s Hexed. Unveiled during the studio’s Destination 23 event, the Walt Disney Animation Studios film from Zootopia and Raya and the Last Dragon artist Josie Trinidad and Moana 2 co-director Jason Hand centers on “an awkward teenage boy and his Type – A mom,” per the logline. When they discover his oddness is actually magic powers manifesting, they learn of a secret world of magic that’ll forever transform their lives. (A premi

Topics: 2026 disney hexed hoppers zootopia

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I tested Pixel Journal vs Apple Journal to see if AI insights can beat a mindfulness approach

androidauthority.com Unknown 2025-12-01 23:00:55

Dhruv Bhutani / Android Authority When Apple announced the Apple Journal app in 2023, I was pretty excited. As an old-school physical journal aficionado, I’ve tried loads of journaling apps going back to the early days of smartphones and I have my favorites. However, more apps that bring new ideas and features to the mix are always welcome. To be fair, I didn’t expect to swap out my preferred app. But swap out I did. Two years later, Apple Journal is still on my iPhone 16 Pro Max and has become

Topics: ai app apple journal pixel

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Engadget review recap: Pixel 10 phones, Bose earbuds and a Sony camera

engadget.com Unknown 2025-12-02 02:00:51

Fall is just around the corner, which means we're in the midst of flagship phone season. Most recently, Google debuted its new Pixel lineup, offering multiple models where AI features take center stage. We've already put those devices through their paces, in addition to the best noise-canceling earbuds you can buy and a Sony camera. Read on to catch up on the reviews you might've missed over the last few weeks. Google Pixel 10 Pro and Pro XL Google / Engadget 94 100 Expert Score Google Pixel 1

Topics: 10 camera google pixel pro

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Condor's Cuzco RISC-V Core at Hot Chips 2025

news.ycombinator.com Chester Lam 2025-12-02 03:18:41

Condor Computing, a subsidiary of Andes Technology that creates licensable RISC-V cores, has a business model with parallels to Arm (the company) and SiFive. Andes formed Condor in 2023, so Condor is a relatively young player on the RISC-V scene. However, Andes does have RISC-V design experience prior to Condor’s formation with a few RISC-V cores under their belt from years past. Condor is presenting their Cuzco core at Hot Chips 2025. This core is a heavyweight within the RISC-V scene, with wi

Topics: core cuzco cycle execution instruction

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My Favorite Pixel 10 Feature Makes MagSafe Accessories Last Longer Than Ever

cnet.com See Full Bio 2025-12-02 00:00:07

I admit: I'm a fan of magnetic phone accessories that add new features and style to my phone. One of my first Android phones was 2017's Moto Z2 Play. It was from a series of Moto Z phones that touted magnetic accessories called Moto Mods, which included decorative shells, battery packs and -- my favorite -- a JBL speaker attachment that helped boost the audio for music. Moto Mods didn't continue past 2019's Moto Z4. Now here's the good news: The magnetic accessories developed for Apple's iPhon

Topics: 10 google iphone magnetic pixel

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13 Best Android Phones of 2025, Tested and Reviewed

wired.com Julian Chokkattu 2025-12-02 03:03:00

Other Phones to Consider We test a ton of Android phones. We like the ones below, but you'll be better off with one of the options above. If you haven't yet done so, check out our Best Cheap Phones and Best Folding Phones guides for more. Google Pixel 9 series Photograph: Julian Chokkattu Google Pixel 9 series for $599+: The Pixel 9 series (9/10, WIRED Recommends) from 2024 is still a great buy if you can find them on sale. The Pixel 9 is similar to the Pixel 9a but with better build quality

Topics: galaxy phone phones pixel samsung

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I’m really impressed with this $400 portable projector

techcrunch.com Lauren Forristal 2025-12-02 02:00:00

I recently moved to a new apartment, and unfortunately, the television didn’t make the cut during the amicable roommate split. While my studio isn’t as cramped as my previous living situations, fitting a bulky TV into the living area still felt impractical to me. In my search for a suitable alternative, a startup called Lumi Labs reached out about testing its new portable projector, the Lumi Max. From the moment I unboxed it, I was impressed by how far projectors have come since my college days

Topics: disrupt lumi max projector tv

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A week later with Google Pixel 10, I'm wondering why anyone should buy pricier flagships

zdnet.com Sabrina Ortiz 2025-12-02 03:00:18

Google Pixel 10 ZDNET's key takeaways The Pixel 10 has officially launched with a starting price of $799. With a three-camera system, Google Tensor G5, and improved battery life, it's Google's best base model smartphone yet. The main and ultra-wide cameras have been downgraded in order to fit the new telephoto. View now at Google Google's entry-level flagship Pixel has proven to be a capable smartphone, with just the right specs and features to please the masses. So when I switched over to th

Topics: 10 ai camera google pixel

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I replaced my Samsung Galaxy S25 Ultra with the Pixel 10 Pro XL for a week - and can't go back

zdnet.com Kerry Wan 2025-12-02 04:00:17

Google Pixel 10 Pro and Pro XL ZDNET's key takeaways The latest Pixel flagships are priced the same as last year, but get meaningful upgrades across the board. The Pro XL model, with its base storage of 256GB and faster wired and wireless charging, is the best Pixel phone right now. You'll just have to settle for the same design and camera hardware as last year. View now at Google View now at Amazon View now at Best Buy more buying choices Follow ZDNET: Add us as a preferred source on Google.

Topics: 10 google phone pixel pro

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A look at XSLT 3.0 (2017)

news.ycombinator.com Unknown 2025-11-27 12:07:11

A look at the upcoming XSLT 3.0 release, and why it matters beyond the XML community Eighteen years ago, the originators of XML specification faced a problem: how to use the new language to generate a book-publishing format. What emerged were two new languages, the first for describing the various functional parts of a publication in XML called the XML Stylesheet Language Formatting Objects (ultimately XSL-FO) and the XML Stylesheet language (XSLT) for transforming XML-formatted content into th

Topics: key map string xsl xslt

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From Multi-Head to Latent Attention: The Evolution of Attention Mechanisms

news.ycombinator.com Unknown 2025-12-01 22:45:24

From Multi-Head to Latent Attention: The Evolution of Attention Mechanisms Vinithavn 7 min read · 15 hours ago 15 hours ago -- Listen Share Press enter or click to view image in full size What is attention? In any autoregressive model, the prediction of the future tokens is based on some preceding context. However, not all the tokens within this context equally contribute to the prediction, because some tokens might be more relevant than others. The attention mechanism addresses this by allow

Topics: attention context key query vectors

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The Best Gadgets of August 2025

gizmodo.com James Pero 2025-12-01 10:07:44

Wow, are we really here again? Already? It’s almost September, folks, and Gizmodo’s consumer tech team is firmly fixed on upcoming events like IFA 2025 in Berlin and Apple’s impending annual iPhone extravaganza (Meta Connect 2025 is mid-month, too!). That being said, there are still a lot of cool gadgets we reviewed in August that deserve one final look back before we dive face-first into a torrential run towards (gulps) CES 2026. ICYMI (make sure it never happens again), I’m rounding up this m

Topics: 10 amazon battery pixel pro

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Falcon 9 Milestones Vindicate SpaceX’s ‘Dumb’ Approach to Reuse

wired.com Eric Berger 2025-12-02 04:00:00

As SpaceX's Starship vehicle gathered all of the attention this week, the company's workhorse Falcon 9 rocket continued to hit some impressive milestones. Both occurred during relatively anonymous launches of the company's Starlink satellites but are nonetheless notable because they underscore the value of first-stage reuse, which SpaceX has pioneered over the past decade. The first milestone occurred on Wednesday morning with the launch of the Starlink 10-56 mission from Cape Canaveral, Flori

Topics: launch rocket spacex stage time

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Latest Tech News

Shared_ptr<T>: the (not always) atomic reference counted smart pointer (2019)

"This telegram must be closely paraphrased before being communicated" Why?

I Love How Streamlined the Excellent Pixel 9 Pro Is, and It’s $99 Off for Labor Day

You Can Play the New Gears of War Game Now on Xbox Game Pass

This Threshold-Climbing Robot Vacuum Overcame Every Obstacle in My Home and It's $440 Off for Labor Day

These Newly Discovered Cells Breathe in Two Ways

Key Pixel Settings to Change on Your Google Phone

Acer just announced a Google TV box with all the ports you want (Update)

Daily Hub is one of the worst Pixel features I’ve ever used

I threw out my ice packs after trying this smart cooler - and it's $440 off right now

Red: A programming language inspired by REBOL

Compositional Datalog on SQL: Relational Algebra of the Environment

How Does Timecode Vinyl Work? (Pt. 3)

xAI sues an ex-employee for allegedly stealing trade secrets about Grok

The space race is transforming Southern California's economy – again

Hardening Firefox – a checklist for improved browser privacy

From multi-head to latent attention: The evolution of attention mechanisms

Disney Gives New Looks at ‘Toy Story 5,’ ‘Zootopia 2,’ and More

I tested Pixel Journal vs Apple Journal to see if AI insights can beat a mindfulness approach

Engadget review recap: Pixel 10 phones, Bose earbuds and a Sony camera

Condor's Cuzco RISC-V Core at Hot Chips 2025

My Favorite Pixel 10 Feature Makes MagSafe Accessories Last Longer Than Ever

13 Best Android Phones of 2025, Tested and Reviewed

I’m really impressed with this $400 portable projector

A week later with Google Pixel 10, I'm wondering why anyone should buy pricier flagships

I replaced my Samsung Galaxy S25 Ultra with the Pixel 10 Pro XL for a week - and can't go back

A look at XSLT 3.0 (2017)

From Multi-Head to Latent Attention: The Evolution of Attention Mechanisms

The Best Gadgets of August 2025

Falcon 9 Milestones Vindicate SpaceX’s ‘Dumb’ Approach to Reuse

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