spc476

74 ms·

871.
by spc476 9y ago
I find luacheck (a linter for Lua) invaluable for picking up typos, unused variables, variables shadowing other variables and unintentional global use (since Lua defaults to global by default). The types of checks seems mostly reasonable t
872.
by spc476 9y ago
Turn on the closed captions, which contain more details about what is going on in the videos.
873.
by spc476 9y ago
Then I must be lucky. https://news.ycombinator.com/item?id=16357271
874.
by spc476 9y ago
And I constantly get email for other people with my name at gmail.com. Let's see ... I'm married, and I have a few girlfriends, I run marathons, and I've been to several family reunions. Oh, and I'm in the process of b
875.
by spc476 9y ago
There are two control codes, SO (shift-out) and SI (shift-in) that can be used for this---SO to switch to another character set, and SI to switch back. So you SO to Emojicode, and SI back to Unicode.
876.
by spc476 9y ago
Here's a picture of the floor of the Square Root Restaurant in Brevard NC: https://www.tripadvisor.com/LocationPhotoDirectLink-g48979-d... Each block is 6"x6" (15cm x 15cm) of pine. Apparently it lasts a lo
877.
by spc476 9y ago
My own implementation of coroutines for C [1] requires each coroutine to have its own stack. It simplifies things quite a bit. [1] https://github.com/spc476/C-Coroutines [2] [2] More of a "proof-of-concept"
878.
by spc476 9y ago
But can the compiler warn about such undefined behavior? Because if it can't, it's not much better than C.
879.
by spc476 9y ago
It may very well depend upon the tool chain. The Solaris C compiler/linker can inline external functions (a previous developer at my company relied upon that behavior when writing code), but that's the only one I'm familiar
880.
by spc476 9y ago
I use it to show intent, as functions I mark as inline are those that, pre-C99, would have most likely been a macro. I prefer the inline function over a macro as it prevents a certain class of errors and you get some additional type-checki
881.
by spc476 9y ago
The Bill of Rights (the first 10 amendments to the Constitution) do not define the rights we have as citizens, but are restrictions on the Federal government. Even the 10th says as much: "The powers not delegated to the United States
882.
by spc476 9y ago
Having implemented CBOR [1], it's really only an issue for the x86, which can do unaligned reads. On most other architectures (even little-endian ones like RISC-V) it's less an issue because you will either have to copy the byt
883.
by spc476 9y ago
It depends. with RS-232 (the old serial port standard) bits were transmitted least-significant-bit first, with the most significant bit sent last [1]. Getting back to hex dumps, here's one of some data: 00000000: 6C 6F 77 09 30
884.
by spc476 9y ago
DynASM is an interesting tool (it's used in LuaJIT). I used it to test integer overflow overhead [1] (mainly because I could specify different expression lengths and test `INTO` vs. `JO`). [1] http://boston.conman.org/
885.
by spc476 9y ago
And CP/M was influenced by RT-11, another DEC operating system, bringing us full circle.
886.
by spc476 9y ago
A few years ago we had an outage that cost us quite a bit of money [1]. The root cause was the deletion of a test record from the database we query (and run by the Oligarchist Phone Company) but the deletion had a domino effect on our serv
887.
by spc476 9y ago
? A NaN is defined as the maximum exponent (all ones) and a non-zero mantissa. By "no defined pattern for NaNs" I meant there was no fixed value for a single NaN.
888.
by spc476 9y ago
MS-DOS wasn't that great. Oh, don't get me wrong, it's great at being a singer user, non-reentrant interrupt handler on a painful to program architecture [1]. A lot of applications skipped using device drivers entirely for t
889.
by spc476 9y ago
Well, there is Synthesis OS [1] where the kernel can rewrite itself on the fly to provide synthesized system calls (think of a specialized `read()` call that can return a file line-by-line for just a simple example). But even that is (was?
890.
by spc476 9y ago
Such as? Reading up on the format [1] it seems that every value is defined, which includes a ton of possible NaN values [2]. [1] https://en.wikipedia.org/wiki/Double-precision_floating-poin... [2] If you read the actua
891.
by spc476 9y ago
Back in the early 90s I recall using a program that allowed two or more people to chat at the same time, without a server. It was a true peer-to-peer communication program. The current paradigm of Internet usage has blinded us to what is
892.
by spc476 9y ago
Can someone explain what this is about? > As we detailed in a deep-dive blog post last year, privacy reasons make it basically impossible to load the page from the publisher’s server. Publishers shouldn’t know what people are interested
893.
by spc476 9y ago
Wasn't Google's Fuchsia just renamed Zircon? Or is that something else? I can't keep up any more.
894.
by spc476 9y ago
I did a proof-of-concept [1] of such a system several years ago in C/Lua to allow non-root users to bind to privileged ports [2]. The things I got from this were: 1) Odd that something like this hadn't been written for Unix years
895.
by spc476 9y ago
By default, only root can bind to ports 80 and 443. You can change this policy, but that's considered unsecure because then any program can bind to the so called "privileged ports."
896.
by spc476 9y ago
No, a function can be long but have a low cyclomatic complexity score [1] (being a list of do_this(), do_that(), do_somethingelse(), etc) while a short function can have a higher cyclomatic complexity score (lots of fiddly logic). [1] http
897.
by spc476 9y ago
I've been using a program I wrote for 18 years now. The code today is not the same as the code 18 years back. I have slowly modified the code as ideas for new features come up, old features removed because they aren't used any
898.
by spc476 9y ago
Oh I can't wait for that day. Then I can sell an Internet enabled appliance with a certificate that lasts just as long as the warranty! Recurring revenue here I come!
899.
by spc476 9y ago
Yes they did.
900.
by spc476 9y ago
I did a Forth-like Unix shell in college (mid 90s) as a class project [1]. The differences I see from mine are: 1) I made Unix commands a first-class variable type. You could create a single Unix command and store it into a variable. You

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