Why he use stb_lib_facilities instead iostream?
There's a question in SO about that where people explain it a bit. But basically the author made that header file where he included <iostream> 🤷♂
https://stackoverflow.com/questions/45877104/is-c-std-lib-facilities-h-still-used
Pavel
Pavel
Seems like he did that to make the code snippets use less space in the book but still be compilable.
It is something that one shouldn't do normally. As well as using using namespace std; that people mentioned in the SO thread (that a lot of people who write books use to reduce snippets size, but nobody uses that in real code)
Eric Czeladka 🇫🇷
/get
Eric Czeladka 🇫🇷
/get projects
/get projects
Please check the Resources section for links on Open Source Projects in C/C++ some of which are explained from scratch.
Eric Czeladka 🇫🇷
/get ot
/get ot
Offtopic discussions should be done in the C/C++ Offtopic group. Please take your discussion/questions there.
aaswq1
aaswq1
Maybe i asked it before, but i repeat
Is prata's "C++ primer plus" bad book?
Pavel
Soooo...book learn you to bad code?
In this example, yes, it teaches a bad thing, though it's quite a small thing in the beginning
Purge complete.
mito
Go to offtopic chat if you want to roleplay or do anything else.
Offtopic discussions should be done in the C/C++ Offtopic group. Please take your discussion/questions there.
EmbRio
I wanna learn c++ but i don't have basic in programming what should i learn first.
EmbRio
/get ot
/get ot
Offtopic discussions should be done in the C/C++ Offtopic group. Please take your discussion/questions there.
EmbRio
I wanna learn c++
aaswq1
I wanna learn c++ but i don't have basic in programming what should i learn first.
look at the pin in https://t.me/cpp20programming
Najmul
/start@MissRose_bot
Ибраги́м
https://www.youtube.com/watch?v=yPB_btV8epo
Danya🔥
https://www.youtube.com/watch?v=yPB_btV8epo
This feature has been out for quite a while, hasn't it?
Naikita
/start@MissRose_bot
Ибраги́м
This feature has been out for quite a while, hasn't it?
Yea, CTAD is 2017 and (class and string)NTTP is 2020 IIRC
Ибраги́м
https://www.youtube.com/watch?v=CIB_khrNPSU
Boss
Hello
Brooklyn
How do you use -O3 flag on terminal for c++
Mahdiy
super
Can I convert python code to C++?
Sheokand
I've No Knowledge About C++ Language Please Help me 😭
super
I have forex trading signal generator written with python, Can I convert it to C++? So how long will it ake?
klimi
I have forex trading signal generator written with python, Can I convert it to C++? So how long will it ake?
it depends how much code it is, how good you are at programming in both languages and how much you care about the quality
I've No Knowledge About C++ Language Please Help me 😭
Don't ask meta questions. In other words, don't ask to ask. Questions like "Does anyone know XYZ?", "Has anyone used XYZ?" or "Can someone help me?" are all considered meta questions because they don't specify what your actual problem is.
These questions give the impression that you want people to approach you and offer their help as if they don't have any other work to do. Now doesn't that expectation make you look like an idiot?
If you have a question ask it directly. You are more likely to get a response that way.
I've No Knowledge About C++ Language Please Help me 😭
Please check out this channel - @Resources for information on learning sources for C and C++ (books and videos) and Frequently Asked Questions.
Boss
Hello
hlebyshek
is anyone know idiom 'please'?
I heard about it only once
/report
User 来当股东 has 1/2 warnings; be careful!
Reason:
non english
Xerohero
/start@MissRose_bot
Purge complete.
Ya deway
Hello guys im working in a c++ code that use ndi for video capturing and Nvidia Tensor for image Object Recognition. I have some trouble comverting NDI data to SDL format (display video) the quality Is very bad
Reported to admins.
Ludovic 'Archivist'
Hello guys im working in a c++ code that use ndi for video capturing and Nvidia Tensor for image Object Recognition. I have some trouble comverting NDI data to SDL format (display video) the quality Is very bad
What format does the camera output? Ndi is just a wrapper over some other format. Also SDL does not, as far as I know, have any reliable decoding capability so you can either rely on the GPU to do the decoding, you may want to use ffmpeg for this.
User Prashanth Kumar has 1/2 warnings; be careful!
Reason:
ai generated trash
Danial.
I want learn these areas of programming languages please 🙏order this list by less difficulty : 1-cloud computing 2-AI 3-backend or serverside programming 4-data science 5-IOT
Luca
Hi,
I am developing an architecture for sending and receiving data packets. Specifically, I am creating a library that allows me to manage communication through multiple channels. Let's call Dispatcher the interface class for the in/out channel. I have created a DispatcherFactory which, based on certain rules, creates specific derivatives of Dispatcher. Each derivative is a separate module, for example: PDispatcher, FDispatcher, etc.
By doing so, this library will have dependencies on all modules at compile and linking time. Is there a way in C++ to load these dependencies at runtime, so the library remains agnostic about how many and which derivatives exist at compile time?
Thank you very much!
Ziky
I want learn these areas of programming languages please 🙏order this list by less difficulty : 1-cloud computing 2-AI 3-backend or serverside programming 4-data science 5-IOT
It depends on what exactly are you going to do. I have some insights into iot - you may simply get some soc from Nordic load their matter example and configure it to read thermometter and expose it to premade thread or zigbee stack - that is not hard. Developing and tuning IEEE 802.15.4 driver is on another level
Ya deway
What format does the camera output? Ndi is just a wrapper over some other format. Also SDL does not, as far as I know, have any reliable decoding capability so you can either rely on the GPU to do the decoding, you may want to use ffmpeg for this.
In trying now with OpenCV and TensorRT by Nvidia for model Recognition
harmony5 🇺🇳 ⌤
I want learn these areas of programming languages please 🙏order this list by less difficulty : 1-cloud computing 2-AI 3-backend or serverside programming 4-data science 5-IOT
No one knows them all at the same time, they're too broad, pick one. Also those are not "programming language" areas, but entire subareas of software engineering.
Purge complete.
Scary
hi
Ayush
Guys I have to ask one thing
I usually code in visual studio for c++
But whenever I run my program many times
My compiler says permission denied and error compiling and when I restart visual studio the code start working
I don't what to do
\Device\NUL
Ayush
i have checked it but nothing works
Ayush
i always have to restart visual studio
Vaibhav
Hi
Sourav
Hello
Hi everyone.I have a question about strcat.
Ludovic 'Archivist'
In trying now with OpenCV and TensorRT by Nvidia for model Recognition
OpenCV should handle it all gracefully
Hi everyone.I have a question about strcat.
Don't ask meta questions. In other words, don't ask to ask. Questions like "Does anyone know XYZ?", "Has anyone used XYZ?" or "Can someone help me?" are all considered meta questions because they don't specify what your actual problem is.
These questions give the impression that you want people to approach you and offer their help as if they don't have any other work to do. Now doesn't that expectation make you look like an idiot?
If you have a question ask it directly. You are more likely to get a response that way.
https://dpaste.org/v59Da
In this code I thought it will throw stack error, but it runs without error.But when I change array size of got to 15, it throws stack error.
My question is this: How 21 letter size string could settle into 16 size RAM.And if can, why 15 size RAM couldn't?
Danya🔥
https://dpaste.org/v59Da
In this code I thought it will throw stack error, but it runs without error.But when I change array size of got to 15, it throws stack error.
My question is this: How 21 letter size string could settle into 16 size RAM.And if can, why 15 size RAM couldn't?
I'm too lazy to answer, so I asked ChatGPT
Danya🔥
https://dpaste.org/v59Da
In this code I thought it will throw stack error, but it runs without error.But when I change array size of got to 15, it throws stack error.
My question is this: How 21 letter size string could settle into 16 size RAM.And if can, why 15 size RAM couldn't?
In the given code, you have two character arrays and you are concatenating one string to another using strcat. Let's break down what is happening:
char got[16] = "Kral \"iyidir\""; // declares an array of 16 characters and initializes it with the string "Kral "iyidir""
char kralis[] = "Heheheha"; // declares an array to hold the string "Heheheha"
strcat(got, kralis); // concatenates the string in kralis to the end of got
printf("%ld, %s", sizeof(got), got); // prints the size of the array got and its contents
1. Initialization and Concatenation:
The array got is initialized with the string "Kral \"iyidir\"". This string is 13 characters long (Kral (5) + \"iyidir\" (8)) plus the null terminator (\0), making it 14 characters in total.
When you use strcat(got, kralis), the string "Heheheha" (8 characters + 1 null terminator) is concatenated to the end of got.
2. Array Sizes:
- got is declared as char got[16]. It has space for 16 characters, including the null terminator.
- kralis is declared and initialized as char kralis[] = "Heheheha". It has space for 9 characters, including the null terminator.
3. Concatenation Result:
After concatenation, got will contain "Kral "iyidir"Heheheha". This string is 14 (initial string) + 8 (kralis) = 22 characters long. However, because got was initially declared with a size of 16, it can only store up to 15 characters plus the null terminator.
This results in buffer overflow and undefined behavior because you are writing beyond the allocated memory of got. The fact that it runs without an error when got is of size 16 is due to the specifics of how the memory is managed and used in your environment. It is not safe and will likely lead to a crash or other unpredictable behavior.
4. Why it crashes with size 15:
When got is changed to char got[15], the buffer size is even smaller. It can only hold 14 characters plus the null terminator. Given that the initial string "Kral \"iyidir\"" is already 14 characters, any attempt to concatenate more characters will immediately overflow the buffer and result in a more likely and immediate crash.
Key Points:
- Buffer Size: Always ensure that the buffer you are writing to has enough space to accommodate the entire resulting string including the null terminator.
- Undefined Behavior: Writing beyond the allocated memory leads to undefined behavior which can manifest differently depending on the environment and specifics of memory layout at runtime.
- Safe Practices: Use functions like strncat to avoid buffer overflows and always check the buffer sizes.
Corrected Code Example:
To avoid such issues, you should allocate enough space or use safe string functions:
char got[24] = "Kral \"iyidir\""; // 24 to safely include additional strings
char kralis[] = "Heheheha";
strncat(got, kralis, sizeof(got) - strlen(got) - 1); // ensure not to exceed the buffer size
printf("%ld, %s", sizeof(got), got);
This ensures that got has enough space to hold the entire resulting string, and strncat ensures that the buffer is not overflowed.