an integer division by 3 might be optimized to (output of GCC below) square(int): mov eax, edi mov edx, 1431655766 sar edi, 31 imul edx mov eax, edx sub eax, edi ret

Is anyone appearing for NPTEL c++ exam

https://youtu.be/YQs6IC-vgmo

funny thing is removing linked lists from hash tables

you get 1.5x the performance from my tests

That is what I did in the Freestanding Extensions Library

those are reads

Y axis is time per read in nanoseconds

X axis is the number of elements in the set

all elements of the set were queried once

would be intersting how absl::flat_hash_map compares

would be intersting how absl::flat_hash_map compares

they use a very similar design

so they should be comparable

i have no idea what is that second thing

i have no idea what is that second thing

Both are hash tables, blue is clinl's, orange is the normal ones from c++ standard library

ohhh

its clinl

interesting results qneko

actually, the hash maps from the FEL have a tool to diagnose the internal state and get statistics

unordered_map statistics: band_size: 12288 size: 4502 displacements: 0.2923145268769436 max displacement: 10

unordered_map statistics: band_size: 12288 size: 4502 displacements: 0.2923145268769436 max displacement: 10

band size = capacity size = size (?) displacement = the average number of failures to get the values max displacement = the maximum number of failures to get a value

did you do this @qneko?

yeah

so clever

It was a pain to not have that to measure if the performance was stable enough

would be intersting how absl::flat_hash_map compares

If you want to try it out, here is the benchmark code I used : https://github.com/clinlfoundation/FEL/blob/master/tests/test004.cpp

unordered_map statistics: band_size: 12288 size: 4502 displacements: 0.2923145268769436 max displacement: 10

Wow this is so cool

How To implement a Mobility Model In Omnet++

Omelette++

Omnet ++ is a discrete event based simulator Similar to Ns2

hi here is my code, and I dont know why it wont work. It's an example from K&R

here is the output after complilation

Hardcore chat I have just joined, but I already can be banned

@viferga

Hardcore chat I have just joined, but I already can be banned

These rules mostly apply to Indians

here is the output after complilation

you need to include that finctions

Thank you for new stickers

they are just declared

they are just declared

aha. but they are not in the book, maybe it just wants us to know how it works in the book. but I wanted to debug it, is it feasible now?

aha. but they are not in the book, maybe it just wants us to know how it works in the book. but I wanted to debug it, is it feasible now?

if they arent maybe it's homework that you have to implement yourself

what does the highlighted part says exaxtly?

i dont know

if they arent maybe it's homework that you have to implement yourself

wow, it's too hard for a beginner.

what does the highlighted part says exaxtly?

it seems that there is another file

maybe you need the file where the stack is implemented

c is hard for a beginner

i started with vb6

the modern analogue maybe javascript or python

then i moved to c/c++

no idea

thanks🌷🌷🌷

Thank you.

the modern analogue maybe javascript or python

Thanks for the info

Thanks for the info

😅👍

thanks🌷🌷🌷

in any case check the book, maybe the code is there too

you need something like: void push(double d) { // code }

also, what is that book?

what does the highlighted part says exaxtly?

what is saying here is basically they are doing a really nasty implementation

with side effects

Hi 🙌 Rose

in any case check the book, maybe the code is there too

you're right, the function definitions were in the next pages. I added them to the file, and it compiled properly. but after running it, I got this error.

you're right, the function definitions were in the next pages. I added them to the file, and it compiled properly. but after running it, I got this error.

my crystal ball still works

and here is the file of the program

my crystal ball still works

whats that?

change %.8 by %f

whats that?

I have a crystal ball that shows me the future

it is magical

I have a crystal ball that shows me the future

s/cristall/crystal

lets not invent new programming languages

i read your next pages of the book

change %.8 by %f

this will work i think

it is magical

wow😄

this will work i think

ok,I'll do it

printf("\t%.f\n", pop());

is it true?

ask your crystall ball

printf("\t%f\n", pop());