hassle | HTTP Caching SASS for your leisure | Style Language library

I have in my project a struct A which is logically related to a struct B from a different crate. Both have internally an optional sub-struct (C / D).

Let's say for this example they have this struct definition:

I am creating a price component grid, and trying to work out the things with justify-content and align-items, but I am unable to understand why sometimes the justify-content works and sometimes it doesn't.

The below justify-content works for lower left part but neither for the upper part nor for the lower right part.

We have a code in production that in some situation may left-shift a 32-bit unsigned integer by more than 31 bits. I know this is considered undefined behavior. Unfortunately we can't fix this right now, but we can work this around, if only we can assume how it works in practice.

On x86/amd64 I know processor for shifts uses only the appropriate less-significant bits of the shift count operand. So that a << b is in fact equivalent to a << (b & 31). From the hardware design this makes perfect sense.

My question is: how does this work in practice on modern popular platforms, such as arm, mips, RISC and etc. I mean those that are actually used in modern PCs and mobile devices, not outdated or esoteric.

Can we assume that those behave the same way?

EDIT:

1. The code I'm talking about currently runs in a blockchain. It's less important how exactly it works, but at the very least we want to be sure that it yields identical results on all the machines. This is the most important, otherwise this can be exploited to induce a so-called chain split.

2. Fixing this means hassles, because the fix should be applied simultaneously to all the running machines, otherwise we are yet again at risk of the chain split. But we will do this at some point in an organized (controlled) manner.

3. Lesser problem with the variety of compilers. We only use GCC. I looked at the code with my own eyes, there's a shl instruction there. Frankly I don't expect it to be anything different given the context (shift operand comes from arbitrary source, can't be predicted at compile time).

4. Please don't remind me that I "can't assume". I know this. My question is 100% practical. As I said, I know that on x86/amd64 the 32-bit shift instruction only takes 5 least significant bits of the bit count operand.

How does this behave on current modern architectures? We can also restrict the question to little-endian processors.

Firefox 89 includes many changes to the web browser's UI.

One of the benefits of the new UI is that tabs can show a secondary information row to indicate, for example, if media is playing in a tab.

Unfortunately, when the highly-desirable compact mode is used, these secondary info rows disappear.

I went through the Firefox source code, and determined that this issue is created by this line of CSS code:

So I'm trying to play around with WebGazer but I'm already stuck at loading the js file. The webgazer.js file consists of 140k line of codes, but when I load my page the js file only loads until line 94k.

I don't want to use NPM cause it's causing me a lot of hassle to install & run the NPM. How do I fix this problem? Thanks in advance

Do we have the option to get TOUCHSIGNATURE output as image/png ? We want to be able to embed the signature in different documents (pdf, html, markdown, etc...) and a png image will give us the most flexibility.

It should be relatively simple to implement on the frontend, since html canvas is used.

tl;dr is there an easy method to select a range by finding starting and ending row numbers of the range by looking for a value in a column?

Not very familiar with java but i know this can be done very easy in other languages but i can't find anything to help me out at the moment (e.g. which() in R - finding row number of "Personal" and adding 2 to the row number to get the right one for the starting row and finding "Work" and subtracting one to get the ending row for the first section of the example provided)

I'm currently having a script automatically sorting smaller sections/tables of my worksheet based on whether or not a value in the section is checked(yes/no) (unchecked ones at the top). Right now i have manually specified the ranges in the script, but it's a hassle if i remove or add rows section (all the ranges below break). The columns do not change, i only need to find rows. So i was wondering if there's an easy method to choose the range automatically which can take into account rows being added or removed. Below is an example of a similar setup (i have a lot more sections in the actual one).

I want to select range A3:B5 for personal and A8:B10 for work. This is how it's currently coded (incl. the sorting), where i specify it manually (note that i have a Yes/no checkbox in C1 to toggle sorting based on status or due date): date):

Sorry for the poorly worded title, I'll try to explain as best as I can. I am creating a role shop command using the new discord-buttons module, and came across a problem, to my understanding I would have to create a button for each individual role, in order for someone to buy it. After searching through documentation, I'm still a bit stumped. Here's some example code I put together to show what I'm trying to do:

I build Flutter app + Dart. Now i am trying to catch all future exceptions in ONE place (class) AND showAlertDialog.

Flutter Docs proposes 3 solutions to catch async errors:

1. runZonedGuarded
2. ... async{ await future() }catch(e){ ... }
3. Future.onError

But no one can achieve all of the goals (in its purest form):

First: can't run in widget's build (need to return Widget, but returns Widget?.

Second: works in build, but don't catch async errors, which were throwed by unawaited futures, and is"dirty" (forces to use WidgetBinding.instance.addPostFrameCallback. I can ensure awaiting futures (which adds to the hassle), but I can't check does ensures it third-part libraries. Thus, it is bad case.

Third: is similar to second. And looks monstrous.

I get first solution and added some details. So,

I created ZonedCatcher, which shows AlertDialog with exception or accumulates exceptions if it doesn't know where to show AlertDialog (BuildContext has not been provided). AlertDialog requires MaterialLocalizations, so BuildContext is taken from MaterialApp's child MaterialChild.