The Lounge - CodeProject

Re: Ethics for WFH

MarkTJohnson11-Jan-24 6:35

MarkTJohnson

11-Jan-24 6:35

Those were almost the exact words spoken by the muckity-mucks in the all hands meeting.

I’ve given up trying to be calm. However, I am open to feeling slightly less agitated.
I’m begging you for the benefit of everyone, don’t be STUPID.

Re: Ethics for WFH

TNCaver11-Jan-24 16:07

TNCaver

11-Jan-24 16:07

HR departments and C-Level folks seem to all think alike.

There are no solutions, only trade-offs.
- Thomas Sowell

A day can really slip by when you're deliberately avoiding what you're supposed to do.
- Calvin (Bill Watterson, Calvin & Hobbes)

Re: Ethics for WFH

rnbergren15-Jan-24 5:13

rnbergren

15-Jan-24 5:13

they are trying to justify all that office space they bought, built and/or rented

To err is human to really elephant it up you need a computer

Re: Ethics for WFH

Matthew Dennis11-Jan-24 4:37

Matthew Dennis

11-Jan-24 4:37

Graybow Communications Social: Dilbert: Telecommunication

"Mistakes are prevented by Experience. Experience is gained by making mistakes."

XKCD fans: Randal has a channel now.

OriginalGriff11-Jan-24 2:22

OriginalGriff

11-Jan-24 2:22

https://www.youtube.com/@xkcd_whatif/videos[^]
Only four videos (3 to 4 1/2 minutes long) but they are worth watching.

I like the online comic format, but I hope he continues with the video format as well - probably a lot of work though.

"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!

Re: XKCD fans: Randal has a channel now.

BernardIE531711-Jan-24 3:15

BernardIE5317

11-Jan-24 3:15

You may also consider The Straight Dope - The Straight Dope[^]

Re: XKCD fans: Randal has a channel now.

BernardIE531713-Jan-24 22:08

BernardIE5317

13-Jan-24 22:08

Greetings and Kind Regards
If your kind self is not previously aware you may wish to consider "Minute Physics" https://www.youtube.com/user/minutephysics[^]

I have begun the long slow journey to redemption.

honey the codewitch11-Jan-24 2:04

honey the codewitch

11-Jan-24 2:04

My Visual FA project was a bust, with broken benchmarks and too slow code.

I know in theory a DFA regex can beat one that backtracks, but Microsoft has done a damned good job of optimizing their engine in recent years.

My issue is they're using ReadOnlySpan<char> over the input string so if I want to beat it I have to use that as well.

That won't stream, but I can generate separate code for that.

Here's my result so far

Microsoft Regex compiled "Lexer": Found 170000 matches in 13ms
FAStringRunner: Found 170000 matches in 10ms

I can probably make it a little faster still.

The FAStringRunner was created by hand, by me, not generated by a regular expression.

It looks like this

q1:
if (((((ch >= 9)
			&& (ch <= 10))
			|| (ch == 13))
			|| (ch == 32)))
{
	++len;
	if (position < span.Length - 1)
	{
		ch = span[unchecked((int)++position)];
	}
	else
	{
		ch = '\0';
	}
	goto q1;
}
return FAMatch.Create(2, span.Slice(unchecked((int)p), len).ToString(), p, l, c);
q2:
if (((ch >= 49)
			&& (ch <= 57)))
{
	++len;
	if (position < span.Length - 1)
	{
		ch = span[unchecked((int)++position)];
	}
	else
	{
		ch = '\0';
	}
	goto q3;
}
goto errorout;

I wrote this by hand because I needed to test to see if I could match faster than Microsoft before I wrote any generator code to do so.

I've got a lot of code to write.

Edit: Okay they're really challenging me here:

Terminal

Microsoft Regex compiled "Lexer":  Found 1440000 matches in 91ms
FAStringRunner:  Found 1430000 matches in 81ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 89ms
FAStringRunner:  Found 1430000 matches in 80ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 80ms
FAStringRunner:  Found 1430000 matches in 80ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 70ms
FAStringRunner:  Found 1430000 matches in 80ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 71ms
FAStringRunner:  Found 1430000 matches in 80ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 71ms
FAStringRunner:  Found 1430000 matches in 81ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 71ms
FAStringRunner:  Found 1430000 matches in 80ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 73ms
FAStringRunner:  Found 1430000 matches in 79ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 72ms
FAStringRunner:  Found 1430000 matches in 80ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 69ms
FAStringRunner:  Found 1430000 matches in 79ms

Edit 2: NVM I was in debug mode

Terminal

Microsoft Regex compiled "Lexer":  Found 1440000 matches in 88ms
FAStringRunner:  Found 1430000 matches in 24ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 84ms
FAStringRunner:  Found 1430000 matches in 22ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 81ms
FAStringRunner:  Found 1430000 matches in 22ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 70ms
FAStringRunner:  Found 1430000 matches in 21ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 69ms
FAStringRunner:  Found 1430000 matches in 22ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 69ms
FAStringRunner:  Found 1430000 matches in 21ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 69ms
FAStringRunner:  Found 1430000 matches in 22ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 69ms
FAStringRunner:  Found 1430000 matches in 22ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 69ms
FAStringRunner:  Found 1430000 matches in 22ms
Microsoft Regex compiled "Lexer":  Found 1440000 matches in 71ms
FAStringRunner:  Found 1430000 matches in 22ms

Better

Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix

modified 11-Jan-24 9:29am.

Re: I have begun the long slow journey to redemption.

englebart11-Jan-24 6:57

englebart

11-Jan-24 6:57

is the difference between 1440000 and 1430000 significant?

Or is that part of the reason for early prototyping? Almost good enough?

“Perfect is the enemy of good enough”

Re: I have begun the long slow journey to redemption.

honey the codewitch11-Jan-24 6:59

honey the codewitch

11-Jan-24 6:59

no. i noticed it after the fact. it's a one off error in my benchmark code, iterated 10,000 times. Laugh | :laugh:

Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix

Re: I have begun the long slow journey to redemption.

Paul612411-Jan-24 11:41

Paul6124

11-Jan-24 11:41

Doesn’t this piece of code have one set of brackets too many? Admittedly C type languages are not my forte so I’m probably wrong

if (((ch >= 49)
&& (ch <= 57)))

Re: I have begun the long slow journey to redemption.

honey the codewitch11-Jan-24 11:50

honey the codewitch

11-Jan-24 11:50

The jump tables were copied from code I generated using an AST. It is valid code, even if there are spurious parentheses. They have no effect on the compilation or execution.

Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix

Re: I have begun the long slow journey to redemption.

BernardIE531713-Jan-24 22:33

BernardIE5317

13-Jan-24 22:33

Greetings and Kind Regards
It can also be if (c >= 49 && ch <= 57) as relational operators have higher precedence than logical.

Re: I have begun the long slow journey to redemption.

BernardIE531713-Jan-24 22:26

BernardIE5317

13-Jan-24 22:26

Greetings and Kind Regards
Am I mistaken or is the 1st if logically identical to if (ch == 9 || ch == 10 || ch == 13 || ch == 32) ?
Thank You Kindly

Re: I have begun the long slow journey to redemption.

honey the codewitch13-Jan-24 22:28

honey the codewitch

13-Jan-24 22:28

yes. The if conditions were generated by a tool, and it doesn't bother breaking up the range 9-10 into two single equality comparisons.

Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix

Code Project Issues?

glennPattonWork310-Jan-24 23:17

glennPattonWork3

10-Jan-24 23:17

Hi All,

I couldn't get at CP yesterday, I'm wondring if it was the damp string that we use instead of Fibre, or the IT guys running like blue bummed fly's around the place,n but now I see Green Alien | [Alien]

has the latest feed in the Lounge as one of the hits from Yesterdays email, Hmmm will this get posted?

Glenn

Re: Code Project Issues?

David O'Neil10-Jan-24 23:48

David O'Neil

10-Jan-24 23:48

See Mathew Dennis's response in thread 'Looks like it's been a rough day at the office...' down below...

Our Forgotten Astronomy | Object Oriented Programming with C++ | Wordle solver

Re: Code Project Issues?

glennPattonWork310-Jan-24 23:49

glennPattonWork3

10-Jan-24 23:49

Umm, yes it took me to an old page of the lounge, If I click reply to my message it takes me to my message and When Will Flying Cars die (I can't see your reply to my message??)

Re: Code Project Issues?

Richard MacCutchan11-Jan-24 0:09

Richard MacCutchan

11-Jan-24 0:09

See the thread at Looks like it's been a rough day at the office[^]

Re: Code Project Issues?

David O'Neil11-Jan-24 0:45

David O'Neil

11-Jan-24 0:45

I deleted my message, because clicking on the link from my side didn't seem to take me to the message I, and Richard, pointed you towards. Have a great day!

Our Forgotten Astronomy | Object Oriented Programming with C++ | Wordle solver

Re: Code Project Issues?

Chris Maunder11-Jan-24 1:23

Chris Maunder

11-Jan-24 1:23

Not your tin-cans-and-string (that's still working solid). Just one of those things where crapping on other people's work is easier than doing something positive in this world.

Thanks for everyone's understanding and patience yesterday.

cheers
Chris Maunder

Re: Code Project Issues?

Richard MacCutchan11-Jan-24 2:48

Richard MacCutchan

11-Jan-24 2:48