EINVAL Bad arguments (n or lineptr is NULL, or stream is not valid). Aha!

Size cannot be null..

You are giving 0 as size instead of &size.

Ohhhh, I missed that size has to be a pointer

Probably, not given &size instead of 0.

I told you.

Yep, that fixed it.

I told you.

I didn't quite understand, I'm sorry.

/workspace/simpc-httpd$ ./main.c In file included from ./main.c:3: ./definitions.h:60: warning: assignment discards qualifiers from pointer target type HTTP/1.0 /hdfjshfdb GET /workspace/simpc-httpd$ Perfect, thx. No segfault, no assertion error! 👍

Im the c++ begginer

Any one can send lecture or preparation about object and class

Question, what does "core dumped" actually mean?

how to lesrn hashing c++??

Question, what does "core dumped" actually mean?

That means you've tried to access or write on memory address which is not allowed to.

That means you've tried to access or write on memory address which is not allowed to.

That's what "segmentation fault" means, but I am talking about "core dumped" 😉

That's what "segmentation fault" means, but I am talking about "core dumped" 😉

So, core dumped cannot be a result of segmentation fault?

So, core dumped cannot be a result of segmentation fault?

Sure, but what does it mean?

It's a result of a segmentation fault, that's what I know

It is not related with C++, thats how process handled in OS in the background. So, search "core dump" on the internet.

Where is it stored?

Can't find it

OF course, if you have compiled with debug symbols.

Is it hidden or something like that?

Command not found 🤔

OF course, if you have compiled with debug symbols.

But that message even appears without debug symbols

compile your program with -g flag, and run it with gdb.

Afterwards, your program will be crashed and type "bt" to see which functions are called before your program crashed.

See backtraces.

linux

Afterwards, your program will be crashed and type "bt" to see which functions are called before your program crashed.

Ahhh, so gdb actually just reads that file?

core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 63288 max locked memory (kbytes, -l) 65536 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 63288 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited

aha, is it "core file size"?

Btw, how does my desktop detect a program having crashed?

Ahh yes, I see that core file now

I mean, when some programs has a segmentation fault, I get that desktop notification "oops, xxx has crashed. [keep closed] [restart]"

Or this window

I did

There is

We are mixing up 2 topics right now, the desktop stuff I am talking about is unrelated

In both cases I was just wondering what it is/how it works

Yeah, oops

nvm then

So the crashing program sends that noticifation before crashing?

/get

@MissRose_bot

what r the available commands?

/get cbook

/get cppbookguide

So the kernel contains some module that sends the notification directly to KDE when a program crashes?

/get cppbookguide

Wow I didn't know that running a desktop even involves stuff in kernel.

ahhh, like dbus does?

thx for the explaination @lightness_races_in_orbit

/d

Can't find it

it depends on ulimits and other variables in linux. depending on your config creating core dumps can be forbidden at all

you mean a userbot?

Yess !!

No userbots here

sad

userbot working nice

Can you share me that library for userbot?

Can anyone share me library to make userbot?

Does anyone online to help me?

Can you share me that library for userbot?

Uh not really...

😩

Hey. after python, I obviously don't understand how this language works. Why can I access a nonexistent index in an array? where did the given value in this array come from?

Hey. after python, I obviously don't understand how this language works. Why can I access a nonexistent index in an array? where did the given value in this array come from?

why would you access value at inexistent index?

😩

I don't have it anymore....

saddd

Hey. after python, I obviously don't understand how this language works. Why can I access a nonexistent index in an array? where did the given value in this array come from?

Array is just a pointer...

Array is just a pointer...

meh.

saddd

I used python and telethon... If you want to know that

I used python and telethon... If you want to know that

Yes I excited

no, I want to understand why index 88 is not giving errors?

Hey. after python, I obviously don't understand how this language works. Why can I access a nonexistent index in an array? where did the given value in this array come from?

python is more friendly to humans. so if you wrote int xl[10] it means you can access only indexes 0..9. if you access element out of this range you can get any value and even segmentation fault etc, its up to compiler

python is more friendly to humans. so if you wrote int xl[10] it means you can access only indexes 0..9. if you access element out of this range you can get any value and even segmentation fault etc, its up to compiler

python is more silly 😹😹

python is more silly 😹😹

++

))

no, I want to understand why index 88 is not giving errors?

you can use array<int, 10> variable; and then variable.at(88) - you have exception here

you can use array<int, 10> variable; and then variable.at(88) - you have exception here

👌

well thank you. the last question, where did the pluses get this great value under the index 88?

Array is just a pointer...

No it's not

Hey. after python, I obviously don't understand how this language works. Why can I access a nonexistent index in an array? where did the given value in this array come from?

It's one of the main examples of Undefined Behavior

well thank you. the last question, where did the pluses get this great value under the index 88?

compiler can give you any value. it is called UB - undefined bahaviour. probably this is just random data at address xl + sizeof(int) * 88