Qualcuno che parla italiano?

Io;

hi guys

hi guys I have a question ,cant I assign strings in C like scanf("%s",&university->(faculty+i)->facultyName);

it brings error [Error] expected identifier before '(' token

Try scanf("%s",&(((university->faculty)+i)->facultyName));. Assuming that faculty is an array in university structure

okay I will thanks sir

Hello

Guys am new in this group

Hello. I'm new here. I'm a diploma student and I hope you can help me with C programing. 😁

Hello guys

Sorry

How can I free a dynamically allocated struct pointer ?

thanku 🥰

i need a tutorial or document about mariadb connection with c programming language? If anyone help me, i will be happy

#googleit

Shall I learn game programming here unreal engine game

4 as input

how can I create information leaks in form of memory disclosures??

Can someone pls explain this problem i am stuck

Hii

I am new I don't know anything about c++ so I am beginner

I want to learn

so learn

Members of unordered maps are constants?

/warn screen photo

Members of unordered maps are constants?

Keys are, values are not

Sorry i am new to this group

Keys are, values are not

Is there any way to convert keys into mutable ?

Is there any way to convert keys into mutable ?

No way You can't modify keys because if the internal structure of the map is dependent on keys and when you modify any key, the map can't track this change so the map can't reorder internal structure of itself

You can insert new key and delete the old one

Sorry i am new to this group

No sorry You must read rules after join

Can I use goto to move to any point in my program I would like to ? or are there some restrictions to using that ?

You can insert new key and delete the old one

Okay. Thanks

Can I use goto to move to any point in my program I would like to ? or are there some restrictions to using that ?

Do not use goto at all

Why ?

Do u all geeks always talk about programming?

Why ?

https://stackoverflow.com/questions/3517726/what-is-wrong-with-using-goto

Isn't there any library for webp? I wanted to convert .jpg/.png images into webp. I googled about it and no library found

else if (user_choice == 2) { printf(update_product_category); get_string(product_category, MAX_CATEGORY_LENGTH); strcpy(super->product_list[product_index]->product_category,product_category); }

Does anybody have any idea why it skips the get_string function ? ( This function receives an input from the user)

I tried Scanf instead and it has also done the same problem.

Does anybody have any idea why it skips the get_string function ? ( This function receives an input from the user)

Yes

This is a very common issue in C, input from previous stdin comes back

How can I handle it ?

How can I handle it ?

OS specific solution only from what I know

I replaced the function with scanf that gets integers ( it's not what I need) and it worked out..

But as I replace it with scanf that receives a string , it's still skipped over..

https://man7.org/linux/man-pages/man3/readline.3.html

Hey guys

If u have worked with graphics.h in c++, could plz help me?

shows like this

but I think it should print me a circle

Just use other graphic library like SFML, SDL2, WxWidgets, GTK, etc

shows like this

Please mention the path of the graphics files in the " " in initgraph method

Please mention the path of the graphics files in the " " in initgraph method

Hmm, how can I do that?😂

Hey i got a quick question: i need to call a c++ function from an __asm block. That does work but whenever i return the c++ code left artifacts and the following asm code doesnt work properly anymore. I tried pushing all registers to stack and restoring them when i return. But that seams to crash as well. Dint have the time yet to properly debug it to see what happens exactly but maybe this is a more or less known problem and sb can guide me in the right direction.

the c++ function is a void without arguments

also tried just jumping to it returning manually

also tried to declare it as __declspec(naked)

Hey i got a quick question: i need to call a c++ function from an __asm block. That does work but whenever i return the c++ code left artifacts and the following asm code doesnt work properly anymore. I tried pushing all registers to stack and restoring them when i return. But that seams to crash as well. Dint have the time yet to properly debug it to see what happens exactly but maybe this is a more or less known problem and sb can guide me in the right direction.

do you have a proper prologue and epilogue code?

And why cant you call the function just by normal C++? And wrap the inline ass3mbly around?

also tried just jumping to it returning manually

Never use jumps for procedures and never modify the instruction pointer by hand

You can use enter and leave as high level procedure prologue codes

You can use enter and leave as high level procedure prologue codes

to create a new stackframe

You can use enter and leave as high level procedure prologue codes

if you do not want use use them just do: push ebp mov ebp, esp //code mov esp, ebp pop ebp ret

if you do not want use use them just do: push ebp mov ebp, esp //code mov esp, ebp pop ebp ret

remember this is x86-64 asm with intel syntax

And why cant you call the function just by normal C++? And wrap the inline ass3mbly around?

Well that might be smart 😅 probably because im dumb

You can use enter and leave as high level procedure prologue codes

Thanks

Hello. I'm new here. I'm a diploma student and I hope you can help me with C programing. 😁

Diplomatic 😂 lom

do you have a proper prologue and epilogue code?

probably that was the problem. Thought the compiler would handle that for me. At least when i dont declare it as naked

probably that was the problem. Thought the compiler would handle that for me. At least when i dont declare it as naked

It should but who knows :P

tried what you suggested. However it dorsnt work as it should so i guess i have to start propper debugging 😅 thanks for the suggestions tho.

Hey guys, quick question. Today i got to learn about pointer to functions in C and generic pointers. I found that using generic pointers can be extremely useful in some case. However, I was unable to get the point behind using pointers to functions. I understand that function pointers can be useful to pass functions as parameters to other functions. But, this can be done w/o function pointers concept, right? Is there better memory management if we use function Pointers? Am I missing something here?

That's a plausible reply! Thank you.

Because i got the point you were trying to make :-/

How can I avoid the undefined behavior situation? Should I use the address of the first element? scanf("%s", &name[0]);

should have the cdecl calling convention. However i just made a new thread that has a busy waiting for a change... its unelegant but it works 😅🤷‍♂️

yes. However the registers should be the same since i store them in variables of type size_t and after the func returns i restore them.