Here’s a fun, personal story about what can go wrong in an otherwise fine UI when things are redesigned.

Why didn’t she know there were options further down the share sheet? Because she’s using an iPhone 8, which happens to be just the right height to perfectly crop the share sheet.

source: DF

Comparison of subway maps.

This bent my brain a little: if you re-tune Nirvana’s Smells Like Teen Spirit in a major key, it sounds like an upbeat pop-punk song. Like, Kurt Cobain actually sounds happy when he says “oh yeah, I guess it makes me smile” and the pre-chorus — “Hello, hello, hello, how low” — is downright joyous. Although I guess it shouldn’t be super surprising…in a 1994 interview with Rolling Stone, Cobain admits that the song was meant to be poppy.

source: K

In this post we learned how a recursive level 4 table entry can be used to map all page table frames to calculatable virtual addresses. We used this technique to implement an address translation function and to create a new mapping in the page tables.

source: HN

Log everything, sort it out later.

This change has come via a combination of factors including increasing use of mobile devices, removal of the EV visual indicator by browser vendors and as of today, removal from Safari on iOS (it’ll also be gone in Mac OS Mojave when it lands next week):

source: HN

A new data type called a “posit” is designed for direct drop-in replacement for IEEE Standard 754 floats. Unlike unum arithmetic, posits do not require interval-type mathematics or variable size operands, and they round if an answer is inexact, much the way floats do. However, they provide compelling advantages over floats, including simpler hardware implementation that scales from as few as two-bit operands to thousands of bits.

source: solar

So, did we achieve everything we wanted to in 12 months? Inevitably the answer is yes and no. We did a lot more benchmarking than we expected; we’ve been able to make a lot of programs (particularly large programs) have more consistent performance; and we’ve got a fair way down the road of implementing a new GC. To whoever takes on further LuaJIT work – best of luck, and I look forward to seeing your results!

source: L

Drawing lines might not sound like rocket science, but it’s damn difficult to do well in OpenGL, particularly WebGL. Here I explore a few different techniques for 2D and 3D line rendering, and accompany each with a small canvas demo.

https://github.com/mattdesl/webgl-lines

source: L

Process Hollowing is a common technique used by modern malware to create a process which appears legitimate when viewed in tools such as Task Manager, but whose code has in fact been replaced with malicious content.

In 2005, three vulnerabilities were discovered in qmail but were never fixed because they were believed to be unexploitable in a default installation. We recently re-discovered these vulnerabilities and were able to exploit one of them remotely in a default installation.

source: solar

Do keep in mind, this directive is purposely not part of the language specification. It should probably only be done in Go’s runtime package.

If, by chance, you have an Amazon Basics mouse and want the wheel to scroll in the new fangled reverse direction, this is how you do that.

“Memory leaks are impossible in a garbage collected language!” is one of my favorite lies. It feels true, but it isn’t. Sure, it’s much harder to make them, and they’re usually much easier to track down, but you can still create a memory leak. Most times, it’s when you create objects, dump them into a data structure, and never empty that data structure. Usually, it’s just a matter of finding out what object references are still being held. Usually.

A few months ago, I discovered a new variation on that theme. I was working on a C# application that was leaking memory faster than bad waterway engineering in the Imperial Valley.

Antoine and Baptiste tackle the big questions.

Not to be confused with microphotography.

The National Museum of African American History and Culture and the resculpted Governors Island among others.

New York list: http://www.nytimes.com/2016/12/15/arts/comfort-and-joy-in-bricks-and-mortar.html

BBC photos of buildings: http://www.bbc.com/news/in-pictures-38301001

The question I’m going to answer in this post is not why 4 bits are used, but why they’re used the way they are. If you have a look at the standard file types, their values seem pretty arbitrary, when you might expect a simple count upwards.

source: L

You get faster at anything with repetition. Maybe you don’t solve any particular kind of problem often enough to be fluent at solving it. If someone can solve a problem by quickly typing a one-liner in a shell, maybe they are clever, or maybe their job is repetitive. Or maybe both: maybe they’ve found a way to make semi-repetitive tasks repetitive enough to automate. One way to become more productive is to split semi-repetitive tasks into more creative and more repetitive parts.

source: L

Snapchat hits all the servers.