The solution to this problem lies in the way you have implemented your client/server applications. It is important, when receiving input from a user through fgets, to also have an extra check for the signal that is being handled for SIGINT. As such, you will need to create an additional if statement where you can handle cases that involve pressing CTRL+C and other signal interactions. This will allow your application to both receive user inputs while also giving them their desired output, even if they are only partially done with their input command or action. Additionally, it is important to consider using sigaction rather than SIGNAL in order to ensure higher signal handling reliability within your application.

Thank you for your response, could you please, very breafly, tell me how to do this (no code obviously, just the "theory" behind it) or point me towards some articles/videos you know of?

Hello Any suggestions for C-based book on neural nets, ML, AI, statistics, or other relevant subjects, please?

Notaxmar sent a huge message, it has been re-uploaded as a file Help me, why is this error happening to this code? #include <stdio.h> #include <stdlib.h> #inclu..

@Notaxmar What is supposed this to mean? xtr = malloc(10 * sizeof(*xtr));

https://brevzin.github.io/c++/2021/11/21/conditional-members/

@Notaxmar What is supposed this to mean? xtr = malloc(10 * sizeof(*xtr));

I was allocating 10 bytes to the integer pointer. I don't know if that is correct because I'm a beginner

I was allocating 10 bytes to the integer pointer. I don't know if that is correct because I'm a beginner

Well... it is allocating 40 bytes. But i wonder, what is your compiler toolchain?

(under recent gcc and clang it seems to work)

Well... it is allocating 40 bytes. But i wonder, what is your compiler toolchain?

I'm using cxxdroid for android

I'm very confused

I'm using cxxdroid for android

not sure what that is, does it use some standard compiler or it has some theirs?

@Notaxmar What is supposed this to mean? xtr = malloc(10 * sizeof(*xtr));

It's actually a pretty clever way to do it's job, because if you change xtr type you won't have to change the malloc, BUT this is a HUGE mistake, as malloc returns a pointer to a memory location. Xtr is not a pointer, therefore it's wrong

For instance, you could do this: Char *ptr= malloc(sizeof(*ptr)) Therefore If for some reason you decide to change ptr from pointer to char, to pointer to int, you won't have to change what's inside the malloc, but to do this you need what's on the left side of = to be a pointer

Actually casting the malloc is (as far as I know) a bad thing, my professor gave very bad grades for such things whenever a student did so during an exam

Hi here

I have been programming in C for 5 years and I absolutely have to switch to C++. I am planning to write C++ by mixing it with C (loading the C libraries). Do you think this method should be avoided?

No. Casting the return value of malloc is a very bad practice.

I have been programming in C for 5 years and I absolutely have to switch to C++. I am planning to write C++ by mixing it with C (loading the C libraries). Do you think this method should be avoided?

https://isocpp.org/wiki/faq/mixing-c-and-cpp Read and understand every FAQ in that section.

https://isocpp.org/wiki/faq/mixing-c-and-cpp Read and understand every FAQ in that section.

👌🏾

I have been programming in C for 5 years and I absolutely have to switch to C++. I am planning to write C++ by mixing it with C (loading the C libraries). Do you think this method should be avoided?

https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#S-cpl The guidelines are clear

No. It is bad practice because you are repeating code. That violates DRY principle. Isint it obvious from the sizeof that the returned value will be an int*? Secondly the cast is not required as a void* pointer can be casted implicitly to any pointer. And lastly, having an explicit cast will be undefined behavior if you forget to include stdlib.h

Advanced C & C++ compiling, for example

Lol, my senior suggested this exact book yesterday for me..

Lol, my senior suggested this exact book yesterday for me..

There are few books cover this topic (how the compiler makes its magic under the hood) and explain a bit further what is not the programming language itself, but the tools are involved in the creation of an executable file.

Is it possible to implement the following code without "explicit this" in c++23, I want to implement it in c++17. https://godbolt.org/z/Ghcc3jWq5 derived class call a method in parent class, and than chain call the method of itself.

In my case, the func does not return self in fact, but create a new object after some operations, so this cannot be used: https://stackoverflow.com/a/27222362

solved... https://godbolt.org/z/9PzG8sKhe

Madhu, what’s the current consensus on reusing code?

Not casting, but code reuse.

As a summary for everyone else, here is a discussion on Reddit on casting return values of malloc https://www.reddit.com/r/C_Programming/comments/7rk19b/revisiting_malloc_and_cast_in_c/ Rob Pike (who has worked closely with both K and R of K&R C) also chimes in to say casting is a very bad idea. And here is the Stack overflow QandA on why casting return value of malloc is bad - https://stackoverflow.com/questions/605845/do-i-cast-the-result-of-malloc And here is advice from Jens Gustedt (C Standard Committee Steering member) on Modern C practices. 2.13.1.4: Don't cast the return of malloc and friends. ... So please stay clear of dinosaurs and ignoramuses claiming to have 28 or more years of programming experience and offering bad advice under the pretext of knowledge or experience.

Not casting, but code reuse.

Code reuse is obviously good if the code you are reusing is well designed. If not, it makes better sense to refactor it or at worse write it from scratch even instead of continuing to reuse badly written code.

Code reuse is obviously good if the code you are reusing is well designed. If not, it makes better sense to refactor it or at worse write it from scratch even instead of continuing to reuse badly written code.

Thanks. Now, is there a way that I can declare a matrix in C++? By matrix, I mean a 2-dimensional array of numbers, as in linear algebra.

Thanks. Now, is there a way that I can declare a matrix in C++? By matrix, I mean a 2-dimensional array of numbers, as in linear algebra.

Depends on your needs. Do you want this matrix to be dynamically allocated or do you know it's dimensions at compile time?

Depends on your needs. Do you want this matrix to be dynamically allocated or do you know it's dimensions at compile time?

Its size is fixed. Let’s say that it’s known to be 5 × 5 (25 numbers in all).

Its size is fixed. Let’s say that it’s known to be 5 × 5 (25 numbers in all).

Are you asking how you would declare a 2 dimensional array of integers in C++? The answer would be to use a std::array of a std::array. Or a simple - <typename>[5][5] But if your question is on how you would design a Matrix class with the associated operations, then the answer would be entirely different.

Are you asking how you would declare a 2 dimensional array of integers in C++? The answer would be to use a std::array of a std::array. Or a simple - <typename>[5][5] But if your question is on how you would design a Matrix class with the associated operations, then the answer would be entirely different.

Yes, a 2D array. Next, I’d like to design an algorithm to perform Gaussian elimination on the matrix. Row reduction, as it’s also called.

Yes, a 2D array. Next, I’d like to design an algorithm to perform Gaussian elimination on the matrix. Row reduction, as it’s also called.

Why don't you go ahead with RREF implementation instead of asking random questions here

Are you asking how you would declare a 2 dimensional array of integers in C++? The answer would be to use a std::array of a std::array. Or a simple - <typename>[5][5] But if your question is on how you would design a Matrix class with the associated operations, then the answer would be entirely different.

Like this? int[5][5] X;

Like this? int[5][5] X;

How am I supposed to know what your requirements are? If you are going to be working on Matrices of different dimensions, it makes better sense to refactor Matrix related operations like subtracting a row from another, adding a multiple of a row to another, multiplying a row by a scalar and so on and encapsulate them within a Matrix class rather.

How am I supposed to know what your requirements are? If you are going to be working on Matrices of different dimensions, it makes better sense to refactor Matrix related operations like subtracting a row from another, adding a multiple of a row to another, multiplying a row by a scalar and so on and encapsulate them within a Matrix class rather.

All the matrices are of the same dimensions—5 × 5.

Why don't you go ahead with RREF implementation instead of asking random questions here

I need to figure out the details first. No, my questions are not random.

All the matrices are of the same dimensions—5 × 5.

If the dimensions are not going to change, you can still allow for it to be changed later. And reducing a matrix to row echelon format is a straightforward operation.

If the dimensions are not going to change, you can still allow for it to be changed later. And reducing a matrix to row echelon format is a straightforward operation.

1. No, they must stay the same. 2. No, it is not straightforward, because I need to make sure that I do it right, and it has many steps in C++.

I need to figure out the details first. No, my questions are not random.

Is there a specific C/C++ question that you have in mind? If yes ask it please. If not, read the rules and see if the question you have in mind is a good fit for this community. If yes, ask the question directly. If no, probably you should be asking your questions elsewhere

Is it possible to implement the following code without "explicit this" in c++23, I want to implement it in c++17. https://godbolt.org/z/Ghcc3jWq5 derived class call a method in parent class, and than chain call the method of itself.

As far as I know, no. This is one of the reasons why explicit this was allowed (apart from being overloading friendly et al).

Please is it possible to write a single code that tells if a number is palindrome and Armstrong number in c ?

Please is it possible to write a single code that tells if a number is palindrome and Armstrong number in c ?

yes

yes

Please any tips on how to go about that ?

Googling

Please any tips on how to go about that ?

well they are so easy P-problems that you could even just write the algorithm to calculate it, or you could do some m-reduction but that seems like a little bit of overkill :D

Googling

😏

well they are so easy P-problems that you could even just write the algorithm to calculate it, or you could do some m-reduction but that seems like a little bit of overkill :D

Let’s say a pseudo code of how it works will help Please I need to program it myself so I understand everything perfectly

Let’s say a pseudo code of how it works will help Please I need to program it myself so I understand everything perfectly

yeah, you can write TM or while-program to prove that it is computable ( and therefore program that calculates it exists)

yeah, you can write TM or while-program to prove that it is computable ( and therefore program that calculates it exists)

Any help using a pseudo code?

Any help using a pseudo code?

I am not really sure how would pseudocode be formally described and therefore used for the proof; while-program would be better

well they are so easy P-problems that you could even just write the algorithm to calculate it, or you could do some m-reduction but that seems like a little bit of overkill :D

Learning "Structure and Interpretation of Computer Programs" at college? 😉

Learning "Structure and Interpretation of Computer Programs" at college? 😉

just finished the course "computability and complexity" :D (quite amazing ngl)

just finished the course "computability and complexity" :D (quite amazing ngl)

Same course, different names everywhere 😂

Same course, different names everywhere 😂

well it's translated from czech :)

I am not really sure how would pseudocode be formally described and therefore used for the proof; while-program would be better

Okay Then help me with program it please 🙏🏾

Learning "Structure and Interpretation of Computer Programs" at college? 😉

Yes

Same course, different names everywhere 😂

😂😂😂😂😂

Learning "Structure and Interpretation of Computer Programs" at college? 😉

It’s kinda fun but limited as you need some extra work to fill the gaps Teacher gives you A and assumes you know xzy Crazy 😅😅

It’s kinda fun but limited as you need some extra work to fill the gaps Teacher gives you A and assumes you know xzy Crazy 😅😅

not sure how this comment relates to anything :D

Okay Then help me with program it please 🙏🏾

With what program you need help?

With what program you need help?

Write a program in c To tell if a number is palindrome and Armstrong number

Write a program in c To tell if a number is palindrome and Armstrong number

ask chatGPT it will gave you the code in c, i won't code your assigment for you, i am not stupid

ask chatGPT it will gave you the code in c, i won't code your assigment for you, i am not stupid

😂😂😂😂

It’s probably a group task It’s been done by someone I want to get the complete sense of joining the two codes together and making it work as one

And I can’t use gpt in my country Since I’m in Cameroon 🇨🇲 ( Africa )

Write a program in c To tell if a number is palindrome and Armstrong number

Sid Xid sent a code, it has been re-uploaded as a file

heres ur code for palindrome

i wrote ur code for palindrome just check once

Okay will check now But I need the two codes combined to work as one

That's my problem 🥲

do u need it as a function

fucntion overloading?

And I can’t use gpt in my country Since I’m in Cameroon 🇨🇲 ( Africa )

then just use google

do u need it as a function

Function

I need it as a function

It should be able to print a result like This is not a palindrome or Armstrong number