Good eve family How can I input and make an audio to play through codeblocks using C? Thank you for your feedback

try OpenAL

int a=1,b=2,c=3,d; d = ++a || ++b && ++c; cout<<a<<" "<<b<<" "<<c<<" "<<d;

think about the code: a=0; x = a++ + a++ + a++; x may be the 3 or 6. A complier executes like that 1 + 1 + 1. B complier executes like that 1 + 2 + 3;

“undefined behavior”

I'm not sure that here is undefined behavior, as far as I remember && and || introduce a sequence point 🤔

I don't usually write code like this, but it looks "correct" to me

Don't write code like this. it will increase the complexity of reading.

why can you explain

Undefined behavior is a big topic: https://en.wikipedia.org/wiki/Undefined_behavior The thing is, if this code is UB (undefined behavior), then it doesn't matter what the result is, the code is ill-formed. I doubt that it's UB though. People don't want to give you just the answer because you need to understand what you're doing, giving an answer is called spoonfeeding and it doesn't help learning. To get better feedback you also shouldn't ask for an answer, it's better to ask in a way: "There's this code, I think it produces answer [what you think] because [why you think it is the answer], am I correct?". This directly shows that you already tried to solve it yourself and want to learn (and not just want to be spoonfed).

Hey there, your can recommend ideas for pet projects ?

Hey there, your can recommend ideas for pet projects ?

what level do you have? what do you want to learn? how many days/months/years you want to spend on it? :)

what level do you have? what do you want to learn? how many days/months/years you want to spend on it? :)

Junior :3

Undefined behavior is a big topic: https://en.wikipedia.org/wiki/Undefined_behavior The thing is, if this code is UB (undefined behavior), then it doesn't matter what the result is, the code is ill-formed. I doubt that it's UB though. People don't want to give you just the answer because you need to understand what you're doing, giving an answer is called spoonfeeding and it doesn't help learning. To get better feedback you also shouldn't ask for an answer, it's better to ask in a way: "There's this code, I think it produces answer [what you think] because [why you think it is the answer], am I correct?". This directly shows that you already tried to solve it yourself and want to learn (and not just want to be spoonfed).

i dont want spoonfeeding i try to solve it so i ask in the group

i get it now

so thank you everyone 👍

Junior :3

C or C++? Level I mean how long you're learning C++ :) How about a console chess game? You input moves for each player and it outputs the new state of the board, whether you could make this move, and a result of the game when someone is won. If it's too easy you can make history of moves with undo-redo, an AI for it, graphical interface, or a multiplayer version over TCP (depends on what you want to learn)

C or C++? Level I mean how long you're learning C++ :) How about a console chess game? You input moves for each player and it outputs the new state of the board, whether you could make this move, and a result of the game when someone is won. If it's too easy you can make history of moves with undo-redo, an AI for it, graphical interface, or a multiplayer version over TCP (depends on what you want to learn)

Over a year. I think the idea is good. I also want to try client-server chat, but I need a server. Is it possible to get it without a card?

I heard aws and Oracle gives

oh I have a similar project,but it still on plan

I think this version of #meta was better

i need a lil help with sorting

can anyone please help me out

the challenge is that i can only use 2 arrays, one the initial and the 2nd one where im printing, and in each iteraation im changing them

C or C++? Level I mean how long you're learning C++ :) How about a console chess game? You input moves for each player and it outputs the new state of the board, whether you could make this move, and a result of the game when someone is won. If it's too easy you can make history of moves with undo-redo, an AI for it, graphical interface, or a multiplayer version over TCP (depends on what you want to learn)

What apis or libraries koz pure c/c++

Over a year. I think the idea is good. I also want to try client-server chat, but I need a server. Is it possible to get it without a card?

Card?? Yeah I hear Amazon gives a 1 yr free

int a=1,b=2,c=3,d; d = ++a || ++b && ++c; cout<<a<<" "<<b<<" "<<c<<" "<<d;

It is not Undefined Behavior like others said. This is perfectly defined. As for the output, just run the code and ask doubts if you have any after seeing the output.

Complex{ int r; int i; public: Complex operator+(Complex& c) { Complex t; t.r = this->r + c.r; t.i = this->i + c.i; return t; }}; int main() { Complex c1, c2, c3; c3 = c1 + c2; } If this '+' would have been a function then c3 = c1.+(c2) should be the syntax. I am not able to understand in c3 = c1 + c2 syntax that which object is calling '+' operator & which object is being passed as parameter

Explain please

Complex{ int r; int i; public: Complex operator+(Complex& c) { Complex t; t.r = this->r + c.r; t.i = this->i + c.i; return t; }}; int main() { Complex c1, c2, c3; c3 = c1 + c2; } If this '+' would have been a function then c3 = c1.+(c2) should be the syntax. I am not able to understand in c3 = c1 + c2 syntax that which object is calling '+' operator & which object is being passed as parameter

c1 + c2 c2 is the argument passed is the same as c1.operator+(c2) Just .operator+ can be substituted with just + to make it look normal

It is not Undefined Behavior like others said. This is perfectly defined. As for the output, just run the code and ask doubts if you have any after seeing the output.

well I guess it is UB the compiler may choose to compile it anyways it likes increment after comparing or comparing before increment

well I guess it is UB the compiler may choose to compile it anyways it likes increment after comparing or comparing before increment

I think in C++17 the order in this case is specified (not sure if was specified before since it should be short-circuit evaluated, so the right-hand side may be not executed in some cases) Note Sequence Point Rules https://en.cppreference.com/w/cpp/language/eval_order

I think in C++17 the order in this case is specified (not sure if was specified before since it should be short-circuit evaluated, so the right-hand side may be not executed in some cases) Note Sequence Point Rules https://en.cppreference.com/w/cpp/language/eval_order

yh , i had that feeling , had it for a long time probably to check again thanks

Mobile complier would recognise ASCII value

?

Card?? Yeah I hear Amazon gives a 1 yr free

Bank Card

Over a year. I think the idea is good. I also want to try client-server chat, but I need a server. Is it possible to get it without a card?

u need server mean rdp,vm?

How can I check mingw compiler C++ version? It says on google that you have to type 'g++ --version' but it doesn't print anything about the version of C++

Mib of MB ?

what do you mean?

u need server mean rdp,vm?

Oh, but i don't know What uses for chats

How can I check mingw compiler C++ version? It says on google that you have to type 'g++ --version' but it doesn't print anything about the version of C++

1. C++ doesn't have versions, what it does have is "standards" 2. g++ --version gives the version of the compiler 3. A compiler can support multiple C++ standards. The standard can be set up by -std flag when you compile a program 4. Using mingw in Windows is a terrible idea, you should use clang or msvc

1. C++ doesn't have versions, what it does have is "standards" 2. g++ --version gives the version of the compiler 3. A compiler can support multiple C++ standards. The standard can be set up by -std flag when you compile a program 4. Using mingw in Windows is a terrible idea, you should use clang or msvc

I have msvc , but in what way is it better than mingw?

I have msvc , but in what way is it better than mingw?

MinGW is a buggy sh*t that doesn't support C++ fully

yes, i understand the meaning of MiB, but in my context the MB a binary multiples, so what I mean is 1MB = 1024*1024 bytes

I think in C++17 the order in this case is specified (not sure if was specified before since it should be short-circuit evaluated, so the right-hand side may be not executed in some cases) Note Sequence Point Rules https://en.cppreference.com/w/cpp/language/eval_order

It was well defined in C++98, C++03, C++11 and C++14 as well. The said code would produce the same output on all those versions as well.

well I guess it is UB the compiler may choose to compile it anyways it likes increment after comparing or comparing before increment

No. || and && introduce sequence points prior to C++11. And after C++11, evaluation order specifies the same behavior as it was with sequence points before C++11

what do you mean?

MiB is 1024 base while MB is 1000 base

MiB is 1024 base while MB is 1000 base

o.o since when?

MiB is 1024 base while MB is 1000 base

No, depends on the context

MiB is 1024 base while MB is 1000 base

It's 1024*1024 tho, not 1024

MiB is 1024 base while MB is 1000 base

No, MB is 2^{20} bytes.

It's 1024*1024 tho, not 1024

Sorry, that's KiB and KB

I should go for dsa after completed basics in c

???

it is reported undefined reference to `opj_read_header' when i compile opencv4.55 on ubuntu

how to solve it?

need i install the OpenJepg?

anyone with a link of octave group?

I've read the rules and I agree with them.

it is reported undefined reference to `opj_read_header' when i compile opencv4.55 on ubuntu

Missing library ?

Hey guys. To learn Cpp, should I know C language first?

Hey guys. To learn Cpp, should I know C language first?

No

Nice. Do you have any indication of sites, etc, to learn?

cpprefference

cpprefference

I wouldn't recommend this site to a newbie to learn cpp. I'd rather recommend a book or learncpp or an online course.

Can anyone help me with the ff Qs Write c++ expression for a=12x Z=5x+14y+6k Y=x^4 C=a^3/b^2k^4 G=h+12/4k

I wouldn't recommend this site to a newbie to learn cpp. I'd rather recommend a book or learncpp or an online course.

i will recommend this site to begginers, it is the best tool that i can recommend for learning cpp. You want to know what standard functions do? they have you covered even with Examples. Surely you need more than just one source to learn i don't deny that

i will recommend this site to begginers, it is the best tool that i can recommend for learning cpp. You want to know what standard functions do? they have you covered even with Examples. Surely you need more than just one source to learn i don't deny that

I somewhat agree with you to some extent, but in that message specifically, cppreference is the only source you mentioned. Which to me is a very bad idea, especially for new learners.

I somewhat agree with you to some extent, but in that message specifically, cppreference is the only source you mentioned. Which to me is a very bad idea, especially for new learners.

yes, my answer wasn't complete. i have just mentioned one source

as for me i cannot recommend any other source

The best teacher is you. Only you know how to teach yourself. Google will help you with the information

It's Chinese said:)) i think it's very useful phrase

But I guess the best one is learncpp, those guys often update information

some guide can be very nice

Please guide me... How to print last entered number at the top from the linked list?

Please guide me... How to print last entered number at the top from the linked list?

a linked list, we have types of linked list singly or double or circular?

Nice. Do you have any indication of sites, etc, to learn?

https://www.learncpp.com/

Hello

Pls how can I shar my cpp .exe file with friends?

Pls how can I shar my cpp .exe file with friends?

Just show the code

Just show the code

Ok

Sharing executable isn't allowed because it may contains sussy code

Just show the code

#include <iostream> #include <vector> #include <ctime> #include <cstdlib> #include <algorithm> using namespace std; void intro(); int main() { intro(); vector<string>names; unsigned seed = time(0); srand(seed); int min = 1, max = 10, num, size = (rand() % (max - min+1))+min; string person_name, search_name; for(int count = 0; count < size; count++) { num = (rand() % (max - min+1))+min; if(num == 1) person_name = "Kofi"; else if(num == 2) person_name = "Ama"; else if(num == 3) person_name = "Abraham"; else if(num == 4) person_name = "Papa"; else if(num == 5) person_name = "Ernest"; else if(num == 6) person_name = "Ibra"; else if(num == 7) person_name = "Opoku"; else if(num == 8) person_name = "Augstine"; else if(num == 9) person_name = "Nana"; else person_name = "Ann"; names.push_back(person_name); } sort(names.begin(), names.end()); cout<<"Enter the name you're searching for: "; cin>>search_name; cout<<endl; if(binary_search(names.begin(), names.end(), search_name)) cout<<"Name is found in the lists\n"; else cout<<"Name is not found in the list\n"; cout<<endl; cout<<"Here are the names\n"; cout<<"------------------------\n"; cout<<endl; cout<<"INDEX\t\tNAMES\n"; cout<<"------------------------------\n"; for(int count = 0; count < names.size(); count++) { cout<<count + 1<<"\t\t"<<names[count]<<endl; } return 0; } void intro() { cout<<endl; cout<<"\t\tThis is a searchable vector program in C++\n"; cout<<"\t\t----------------------------------------------\n"; cout<<endl; }