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Activity for John C
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Comment | Post #296220 |
Did I say "use functions"? I did not. The question says:
> ...none of the answers are showing a way to perform actual _rounding_ - rather, they are doing _flooring_ to the nearest integer.
And the point that, if a programmer can find the floor, then they can round, doesn't change. (more) |
— | 4 months ago |
| Comment | Post #296206 |
Oh, sorry! Too long in the space, I guess. I strongly recommend [Simple English Wikipedia's article](https://simple.wikipedia.org/wiki/Halting_problem) on the topic, straightforward while still giving a pretty good overview of Turing's proof that it's impossible to solve in the general case. (... (more) |
— | 4 months ago |
| Edit | Post #296220 | Initial revision | — | 4 months ago |
| Answer | — |
A: Compile-time rounding with the pre-processor If you can truncate (get the `floor()` of a number), then you can round the number by adding 0.5 first. Or, I suppose that, for the sake of completeness, you add "the equivalent of 0.5," since a given program might not represent the values in decimal or you might want to round to a non-ones posi... (more) |
— | 4 months ago |
| Comment | Post #296206 |
The superficial answer (because the full answer probably fills thousands of research papers) is that security problems almost all come from interactions, so you'd need to trace through all possible paths through code, which runs afoul of the Halting Problem (that you can't know in advance if a pr... (more) |
— | 4 months ago |
| Edit | Post #296206 | Initial revision | — | 4 months ago |
| Answer | — |
A: How do websites built by website builders defend security threats or follow secure coding? My understanding (from sometimes working on the older form) is that your instinct hits pretty close to the mark. It often depends on what you need and (increasingly importantly) how rigid a system you have. For a "what you need" example, consider Stripe. You have an account with them, and yo... (more) |
— | 4 months ago |
| Edit | Post #295207 | Initial revision | — | 9 months ago |
| Answer | — |
A: Link to Markdown line on Bitbucket It looks like they do have...something. From : > URI Template for src > > `{+bitbucket}{/owner, repositoryname}/src{/commitish}{/filepath}{?fileviewer}{#fileline}` Despite the flakiest syntax for describing a URL that I have ever seen, up to the query string represents a normal URL to a ... (more) |
— | 9 months ago |
| Edit | Post #295106 | Initial revision | — | 10 months ago |
| Answer | — |
A: Creating PDF from HTML on Debian Bookworm; tools? I originally didn't bother to mention it because I have typically used it from Pandoc, making it equivalent to LaTeX. However, Weasyprint both works as Pandoc's alternative HTML-to-PDF path and runs standalone, as `weasyprint input.html output.pdf`, plus assorted options if you need something mo... (more) |
— | 10 months ago |
| Comment | Post #293984 |
Typo fixed. Thanks!
On the calculus, I agree that it's not needed in the strictest sense, but I - maybe because of a background coming from and teaching at an engineering school - have found it easier to lead students through, that way. Assuming that they've taken calculus, they've already e... (more) |
— | over 1 year ago |
| Edit | Post #293984 |
Post edited: Fixed variable |
— | over 1 year ago |
| Edit | Post #293984 | Initial revision | — | over 1 year ago |
| Answer | — |
A: What is the correct cost formula for the average case in insertion sort algorithm? The difference (and the page that you cite actually does mention it, even if broadly) is that algorithmic analysis has interests and (arguably) traditions that most people find counter-intuitive. Specifically, an algorithm's complexity represents the asymptotic nature of how the resource usage (... (more) |
— | over 1 year ago |
| Comment | Post #293932 |
Ah, thanks! That was the missing piece.
For those coming into this with a similar problem, I grabbed one of the [Snappy implementations](https://google.github.io/snappy/) (the C version, since I didn't see Rust until later) and hacked together a program to read from `stdin` and...
Actually, no. ... (more) |
— | over 1 year ago |
| Edit | Post #293929 |
Post edited: Fix typos and clarify |
— | over 1 year ago |
| Edit | Post #293929 | Initial revision | — | over 1 year ago |
| Question | — |
Extracting Firefox Local Data How does one parse/decode/extract information stored by a web page in Firefox's browser local storage without the browser? So far, I've worked out that the data lives at `/.mozilla/firefox/${profile}/storage/default/${site}/ls/data.sqlite`, where the site looks something like `https+++software... (more) |
— | over 1 year ago |
| Edit | Post #293680 | Initial revision | — | over 1 year ago |
| Answer | — |
A: Why is SQL usually written in CAPS? Since the tradition doesn't have any enforcement anywhere, we can't necessarily pinpoint a single reason, but it probably has a lot to do with the available technology of the early 1970s when Chamberlain and Boyce put together the original SEQUEL. Specifically, punch cards and teletype machines ... (more) |
— | over 1 year ago |
| Edit | Post #291708 | Initial revision | — | over 2 years ago |
| Answer | — |
A: Where to place digit separators in C23? This probably makes for a thoroughly unsatisfying answer, but there's probably far stronger cultural pressure than technical pressure. In European-derived cultures, we mostly group numbers by powers of one thousand as you suggest, and anybody doing something else should either have an extremely ... (more) |
— | over 2 years ago |
| Comment | Post #291557 |
Exactly, and I apologize for the imprecise term. By "private," I only mean some space where it's not quickly discoverable by the general community. You're absolutely right that it shouldn't ever be *unavailable* to the public, or else that directly invites abuse. (more) |
— | over 2 years ago |
| Edit | Post #291557 | Initial revision | — | over 2 years ago |
| Answer | — |
A: Don't close questions for lack of detail/confusion As a newcomer here, I'd like to suggest two additional issues that weigh in favor of closing unworkable questions. First, a site that wants to grow its community needs to moderate its content. If not, prospective users will get one look at a pile of garbage questions with no activity and turn... (more) |
— | over 2 years ago |
| Edit | Post #291470 | Initial revision | — | over 2 years ago |
| Answer | — |
A: Testing an opaque type's internals I'd propose (and have generally used, back when I worked on C projects) a fourth option that I don't think gets too far out of line. If I understand the situation correctly, that you want to test how an "object" reacts under a barrage of test conditions, independent of the rest of the software, ... (more) |
— | over 2 years ago |
| Edit | Post #291459 | Initial revision | — | over 2 years ago |
| Answer | — |
A: How to sort the output of meta / slash commands in `psql`? It's been a while, but the answer is "yes and no," I believe. No: The describe-schema command doesn't (last I heard) allow any modification. Yes: The describe-schema command also doesn't do anything that a `SELECT` statement from `informationschema` doesn't do, so something like this shou... (more) |
— | over 2 years ago |