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OriginalGriff2-Jun-20 1:52

OriginalGriff

2-Jun-20 1:52

You are joking, right?

"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!

W∴ Balboos, GHB2-Jun-20 1:57

2-Jun-20 1:57

No - there's a nuance of civility in not repeating too many words from the original title. It invokes a bit more mental digestion.

Or more sublty put: It's my post. You should have thought of it first and been quicker to post it.

Nyah-nah-nyah-nah-nyah-nyah!.

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

obermd2-Jun-20 3:32

obermd

2-Jun-20 3:32

Don't call me surly.

BillWoodruff2-Jun-20 2:08

2-Jun-20 2:08

Quote:
there's a nuance of civility in not repeating too many words from the original title. It invokes a bit more mental digestion.

There is more than a nuance of lack of civility in your posting your response to an existing thread as a new top-level thread.

Of course, I realize your infatuation with yourself is: limitless. Why should you follow forum rules for mere mortals ?

«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali

W∴ Balboos, GHB2-Jun-20 2:23

2-Jun-20 2:23

BillWoodruff wrote:
Why should you follow forum rules for mere mortals ?

You got that right!

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

ZurdoDev2-Jun-20 2:52

ZurdoDev

2-Jun-20 2:52

W∴ Balboos, GHB wrote:
"Are You Kidding ?"

You must program in Python?

On a serious note, I have no clue what your post means. Not that you care. Big Grin | :-D

Social Media - A platform that makes it easier for the crazies to find each other.

Everyone is born right handed. Only the strongest overcome it.
Fight for left-handed rights and hand equality.

W∴ Balboos, GHB2-Jun-20 3:04

2-Jun-20 3:04

Think about recursion (sort of).

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

ZurdoDev2-Jun-20 3:07

ZurdoDev

2-Jun-20 3:07

Why a space before your question mark? Who taught you to write like that? Is that method still being taught in schools? I've never seen it in any books but have seen one or two others on this site do it and I don't remember what they said.

Social Media - A platform that makes it easier for the crazies to find each other.

Everyone is born right handed. Only the strongest overcome it.
Fight for left-handed rights and hand equality.

W∴ Balboos, GHB2-Jun-20 3:10

2-Jun-20 3:10

ZurdoDev wrote:
Why a space before your question mark?

Just readability in this particular format. Depending upon the font it could be important. Some fonts I use (lately) do a bad job with exclamation points and the space, in that case, makes it clearly not an l or 1.

But, in fact, it was not taught anywhere and is wrong in the sense of proper spacing.

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

Eddy Vluggen2-Jun-20 5:04

Eddy Vluggen

2-Jun-20 5:04

Humor makes us cope; makes us able to share griefs with a laugh instead of a whine.

On a coding-site you find a lot of people who take things literally. And from experience, some jokes are hard to get if English isn't your first language. Some I have to speak aloud a few times to "get it" Thumbs Up | :thumbsup:

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.

Nelek2-Jun-20 9:25

Nelek

2-Jun-20 9:25

W∴ Balboos, GHB wrote:
The Missing and Only Valid Reply

M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.

W∴ Balboos, GHB2-Jun-20 9:26

2-Jun-20 9:26

Well, since you know that answer (too), I won't bother asking you that question.

Ravings en masse^
"The difference between genius and stupidity is that genius has its limits." - Albert Einstein
"If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010

kalberts2-Jun-20 11:35

kalberts

2-Jun-20 11:35

I don't think it is any good at all: In less than a microsecond, it can be factored into 2*3*7. So it isn't useful for any practical purpose.

Nelek2-Jun-20 19:35

Nelek

2-Jun-20 19:35

M.D.V.

State machine performance woes in .NET

Jörgen Andersson2-Jun-20 20:02

Jörgen Andersson

2-Jun-20 20:02

No, it's factored into 6 * 9.

Wrong is evil and must be defeated. - Jeff Ello

honey the codewitch2-Jun-20 1:22

honey the codewitch

2-Jun-20 1:22

For some reason, there appears to be no wickedly efficient mechanism to "switch/case" in IL. Whereas in C for example your switches can form little jmp offset tables .NET compilers do not produce code like this (not even sure if it's possible or at least efficient in IL, I'd have to look)

In fact, the C# compiler will take long switches and turn them into hashtable lookups instead of jmp tables.

What this means in the real world is that generating compiled code to do something like lexing or parsing is slower than generating table driven code in the first place.

For example, a state machine can be rendered as a bunch of labeled code sections that goto/jmp around to each other, and that's how you'd typically compile it, but in .NET this creates significantly *slower* code in practice than generating an array/table driven state machine which doesn't goto/jmp around, but rather performs actions based on array lookups

This is really annoying to me, because I feel like there's a faster option involving generating actual jmp tables for switch cases but either the CIL can't efficiently provide it or the .NET compilers won't produce the code for it. This limits the effective performance I can get out of state machine code.

Real programmers use butterflies

BillWoodruff2-Jun-20 2:16

2-Jun-20 2:16

honey the codewitch wrote:
In fact, the C# compiler will take long switches and turn them into hashtable lookups instead of jmp tables.

HTCW, do take another look at how the C# compiler can and will generate IL switch structures as jump tables under certain conditions. AFAIK: number of cases is not a factor.

[^]

And, once again, I would so appreciate discussions of this type appearing on the C# language forum, where they will not be submerged by Lounge traffic.

«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali

modified 2-Jun-20 8:42am.

kalberts2-Jun-20 2:30

kalberts

2-Jun-20 2:30

BillWoodruff wrote:
I would so appreciate discussions of this type appearing on the C# language forum

... So I have "stolen" the subject line to add my comments in the C# forum Smile | :)

BillWoodruff2-Jun-20 2:36

2-Jun-20 2:36

and, thank you ! The C# language forum, years ago, was a place where substantive discussions of language issues were common.

imho, there's still high-level discussions going on, but, unfortunately it also gets a lot QA questions that have little do with the language per se.

«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali

F-ES Sitecore2-Jun-20 2:19

F-ES Sitecore

2-Jun-20 2:19

CBA doing any research, but I don't think .net actually supports the switch statement, it is just syntactic sugar, your switch statement is converted to an "if\else" block by the compiler.

BillWoodruff2-Jun-20 2:37

2-Jun-20 2:37

F-ES Sitecore wrote:
your switch statement is converted to an "if\else" block by the compiler.

I suggest you look again. [^]

«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali

F-ES Sitecore2-Jun-20 3:33

F-ES Sitecore

2-Jun-20 3:33

Under what conditions is it not an if\else statement?

(not saying you're wrong, just curious to know)

BillWoodruff2-Jun-20 5:31

2-Jun-20 5:31

You are far too intelligent not to figure this out Smile | :)

hint: "register"

«One day it will have to be officially admitted that what we have christened reality is an even greater illusion than the world of dreams.» Salvador Dali

kalberts2-Jun-20 8:34

kalberts

2-Jun-20 8:34

Look at the original open source "P4" Pascal compiler, from before the "open source" concept was invented Smile | :)

: Its only implementation technique was a plain jump table of max 256 entries. HTCW has observed (at least she claims in the root entry of this thread) hash tables.

You can handle all swich variants using if/else sequences. If I were to write this part of a compiler, I would start out with if/else as the only and last resort. As I got around to it, I would gradually add other alternatives to take care of those cases suited for e.g. small jump tables, hash tables etc., and only when those alternatives were not applicable would I fall through to the if/else as the default alternative.