Hello can you please explain How to check that if a number is 3 digit in c++

Make a loop from 100 to 999 and compare it with every number in the loop if the number is equal to anything, it is 3 digit, otherwise it is not... 🤦‍♀️

Better solution: generate random number in range [100, 999] and check until there is a match.

Credits to BogoSort authors

Better solution: generate random number in range [100, 999] and check until there is a match.

Brilliant... only problem is you'll not know when to stop checking.

Or make 2 loops... first one from -1000000 to 99 check if equal ... if it is then it's not 3 digit number... Then make another loop from 1000 to 10000000, do the same...

Brilliant... only problem is you'll not know when to stop checking.

Improvement: push each unique generated number to hash-table and break if every number in [100, 999] is visited.

Better...send the number to Google with search string "is "+x+" 3 digit number"... Use AI to get information from the result...

It is funny that there are billion wrong ways and only 1-2 correct way to solve any problem

Hi Can anyone please explain me the return values of system() function call?

Write a program in prolog to find the summation of two numbers? 😊

Hello Can we make socket and connection with specific dns ?

Hello Can we make socket and connection with specific dns ?

Actually dns proxy I mean

Write a program in prolog to find the summation of two numbers? 😊

Do you know the name of this group? 🤔

Hi Can anyone please explain me the return values of system() function call?

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

Makes sense, now that I think about it I often use normal malloc and placement allocation because of exactly that

Why do you use them exactly?

I mean if not for allocators and for operator new overloading (e.g. for detecting memory leaks), then I don't remember much uses of malloc in C++

Why main function calls itself?

Do you know the name of this group? 🤔

No !

Need someone with webserver coding knowledge -high performance ,with no locks ,no SSL or TLS only cleartext,min. 2million RPS on 8 core pm me. Preferred library LWIP, libaco, newlib, io_uring,mimalloc or instead of libaco this one : https://moodycamel.com/blog/2014/a-fast-general-purpose-lock-free-queue-for-c++.htm#benchmarks

No !

Clue: it's named "C/C++" It's for question and discussing these two programming languages. Questions about Prolog are offtopic here.

Clue: it's named "C/C++" It's for question and discussing these two programming languages. Questions about Prolog are offtopic here.

I'm so sorry 🙂

Write a program in prolog to find the summation of two numbers? 😊

/warn hello, ban list

Let's get this straight: 1. have you read rules? 2. Are you promoting your Website development services?

Let's get this straight: 1. have you read rules? 2. Are you promoting your Website development services?

1) sorry, no 2) no, i only need work

1) sorry, no 2) no, i only need work

well what... should i do with you? you broke 2 rules... that is usually a ban in this group... also you have cross posted this to python group...

Why do you use them exactly?

For things when I want to create, say, an indexed collection of objects and I don't want to instantiate them all

I don't want to create a pointer array, but an array containing the objects themselves

So I usr malloc and memset, and keep an index and T's size internally

I used this once to make a message buffer

For things when I want to create, say, an indexed collection of objects and I don't want to instantiate them all

Ah, ok, in this case it's a decent use of it I think. You've just mentioned it in context of RAII that surprised me

Ah, ok, in this case it's a decent use of it I think. You've just mentioned it in context of RAII that surprised me

I meant for avoiding it 😅 myb

So I usr malloc and memset, and keep an index and T's size internally

better cover malloc in xmalloc : void * xmalloc(size_t size) { void *p = malloc (size); if (!p) exit (-1)! else return p; }

This is in case I don't have memory left, right? This is useful, thank you

I don't want to create a pointer array, but an array containing the objects themselves

Isn't it the same as creating vector and calling reserve?

Isn't it the same as creating vector and calling reserve?

I don't really have access to std in Arduino and similar devices

Hi Can anyone please explain me the return values of system() function call?

Which one ?

Hello everyone in this respected house here is a brother that want to learn basis of c++

I'm new here

I'm new here

try to avoid raw pointers. use RAII

I don't really have access to std in Arduino and similar devices

Not familiar with Arduino too much but from docs it looks like they have support for c++. Is it without stl?

Not familiar with Arduino too much but from docs it looks like they have support for c++. Is it without stl?

Yup

There are projects that implement it in arduino but unless it's an ESP32 for example, it uses way too much flash for my liking

try to avoid raw pointers. use RAII

Noted

Hello ,can anybody please answer me why we use nested structure in c language?

What is major diff bw struct and class

What is major diff bw struct and class

Try to Google

What is major diff bw struct and class

public and private by default

With the starting and ending time of work given find the minimum no of workers needed Start time end time 1230 0130 1200 0100 1600 1700

Can anyone send code for this question

With the starting and ending time of work given find the minimum no of workers needed Start time end time 1230 0130 1200 0100 1600 1700 Output: 2

Can anyone send code for this question

In C

We are not here to do your homework

We are not here to do your homework

Then why are you here?

Then why are you here?

To discuss different topics. Nobody is here to do the homework of a lazy child like you so fuck off

Then shut your mouth

Then shut your mouth

Oh boy, can someone SIGKILL him?

Then shut your mouth

Lol read the rules. And if you don't accept them gtfo

Poda punda

Lol read the rules. And if you don't accept them gtfo

Could you please send it again

Then shut your mouth

Lol?

Then shut your mouth

/report angry homework requests

Just go learn C. Oh guess we'll never see u again because you will never get it

Can we be civil here? No need to be rude even if someone thinks that others need to do their homework.

Just go learn C. Oh guess we'll never see u again because you will never get it

Just I asked a doubt

Just go learn C. Oh guess we'll never see u again because you will never get it

С ? It's not so difficult

С ? It's not so difficult

Too difficult for him

Can we be civil here? No need to be rude even if someone thinks that others need to do their homework.

You are right and normally I'm not the rude guy but these people are getting on my nerves. It's always the same people asking the same questions instead of googling. And instead of asking nice like Could someone PLEASE help me or PLEASE send a solution, they are just rude. It's the ignorance and the mindset that makes me angry.

You are right and normally I'm not the rude guy but these people are getting on my nerves. It's always the same people asking the same questions instead of googling. And instead of asking nice like Could someone PLEASE help me or PLEASE send a solution, they are just rude. It's the ignorance and the mindset that makes me angry.

I completely get it my dude but it takes literally no effort to ignore them and let them fail on their own, if they really don't want to study

I completely get it my dude but it takes literally no effort to ignore them and let them fail on their own, if they really don't want to study

Yeah I normally do that. I only responded because he responded so rude 😂

Hey guys I have a question

I tried searching on Google the difference in machine code of compilers and interpreters but it gave me a completely unrelated answer

Could someone help me understand the difference?

Could someone help me understand the difference?

Do you mean the difference between assembly generated by a compiler and an interpreter?

Do you mean the difference between assembly generated by a compiler and an interpreter?

Exactly

But I mean in the structure of their programs

Exactly

Well in general the assembly is the same. The assembly is generated from some kind of IR (intermediate represenation) or SSA. An interpreter itself does not compile to machine code, it interpret's the code instruction by instruction. But an interpreter can have a JIT (just in time compiler) which translates the bytecode/IR instructions into the local machine language. For that you also need an assembler for the specific architecture. A real compiler does much more optimizing than an interpreter and has a more complex data structure of the code. Some JIT compilers simple translate the virtual instruction set into machine code...

The most interpreters contain a virtual machine like for example CPython. Then the JIT compiler can compile the virtual instructions to machine code to speed up the execution...

So basically an interpreter is just the same as a language translator and compilers truly understand the language like a native speaker

So basically an interpreter is just the same as a language translator and compilers truly understand the language like a native speaker

Unfortunately it's not that easy