But with the friend function we can easily access private data of the friend classs

Read the article ...Friend is as good as member function if used properly. ...Think of it as your bike key ..Only you or your friends (with whom you share your bike key) can unlock bike

Okay i have bit confusion what the use of friend function if we have inheritance .. feature..

hello, how to make a stack based on the weight of the items in it?

what does that mean?

I want to create a stack where the input data limit is based on the value of the variables in it, for example max stack = 40, the variables in it for example a = 10, b = 30. then if you want to input variables again you can't because a + b = 40, max = 40

Hello guys! Can someone help me write a C Program about these: 1. If a is greater than 10, replace a with the difference of a and b. 2. If b is odd then display the value of b/2. Otherwise, display the message 'b is even number'. I would really appreciate if someone will help me with this. Thanks!

Hello Lein, We can for sure help you but you haven't asked your question. You have just posted some homework/assignment description

you can create a variable to store the sum (weight) and update it after every push/pop

Write syntax of strlen(), strupr(), strlwr(), gets(), puts()

Can anybody please help me?

Can anybody please help me?

Can anybody please help me?

are you using linux? if yes just write this in the terminal: man strlen man strupr man strlwt man puts man gets <— never ever use this

are you using linux? if yes just write this in the terminal: man strlen man strupr man strlwt man puts man gets <— never ever use this

Hi can i get someone's help in a simple quiz pls ? 🙂

C program actually It's my question for exam 🥲

are you using linux? if yes just write this in the terminal: man strlen man strupr man strlwt man puts man gets <— never ever use this

Why gets should not be used?

Gets is still there I thought it was removed from C11standard ..can cause buffer overflow as there is no bound test on input

Why gets should not be used?

Hi can i get someone's help in a simple quiz pls ? 🙂

C program actually It's my question for exam 🥲

Hello guys? I input .2f so that it will include only 2 decimals. Why is that the output keeps on only printing the whole number? Please give an advise. Thanks

What is -1.#IND00 ? I get this in c

Is friend function distroy the concept of oops ?

With friends class we can access 1 class data with 2 class

I have already add inline to every function and variable in header file to let it can be compiled with gcc and clang.

C++ version?

Inline should solve the problem ..May be you can force in project setting to generate code even of violating odr

it seems not a good practice?

random.cpp.obj : error LNK2005: "struct TAT::FastName const $S37" (?$S37@@3UFastName@TAT@@B) 已经在 .dealing_tensor_FermiU1_C.cpp.obj 中定义 random.cpp.obj : error LNK2005: "class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const $S38" (?$S38@@3V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@B) 已经在 .dealing_tensor_FermiU1_C.cpp.obj 中定义 sorry my system is chinese, the chinese inside means "xxx have alreadly be defined in yyy", of cause, you can know what it means by the code LNK2005

Hi, How to safe programming in c ?!

random.cpp.obj : error LNK2005: "struct TAT::FastName const $S37" (?$S37@@3UFastName@TAT@@B) 已经在 .dealing_tensor_FermiU1_C.cpp.obj 中定义 random.cpp.obj : error LNK2005: "class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const $S38" (?$S38@@3V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@B) 已经在 .dealing_tensor_FermiU1_C.cpp.obj 中定义 sorry my system is chinese, the chinese inside means "xxx have alreadly be defined in yyy", of cause, you can know what it means by the code LNK2005

Why do I call destructor R[i].~ClassRoom(); but the program still outputs the rooms? R: Room: 1 7 1 Room: 2 4 4 Room: 3 9 1 Room: 4 2 4 Output sequence is being processed after calling the destructor

You shouldn't ever call destructor directly

Okay, but I need to delete R[i]

Is it a pointer?

Destructor shall be called by the end of scope

I need to manually delete it, because I am "shifting" an element from structure array "R" to a different structure array "Comp". This means, I have to copy the element to "Comp" and delete it from "R"

Copy elements over and delete[] R

#include<iostream> using namespace std; int main(){ int x,y,z; cin>>x; z=0; for(y=1;x>=y;++y){ if(x%y==0){ z=z+1; } else{ continue; } } if(z==2){ cout<<"prime"; } else{ cout<<"not prime"; } return 0; }

I can run this code correctly, it not your code's fault.

Does constructor allocate memory to member variables? I read something like this "if I have a const data member inside a class, then I have to use initialiser list because assignment is not possible and as memory for data members is not allocated until constructor is called so using initialisation list , will be initialising our member variables and not assigning." This is true so either constructor allocates memory to member variables or something else is happening here..

A constructor is more than just the body you provide it as is the case for the destructor. A constructor will allocate memory for the data members of the class (this is done automatically for you by the compiler when it compiles the constructor) but this is done before the body of the constructor is entered. The initialization list of the constructor is executed before the body of the constructor executes. For a const data member, giving it a value in the body of the constructor is actually assignment rather than initialization. You can't assign to a const data member. Hence it must be initialized using the initialization list of the constructor.

Hi all .. I left C++ development like 5 years ago ..but my new project n code base provided requires some real hardcore C++20 .. ...I need to catch up very very fast ..there strict time limit max 2 days ..I know I can always refer the official documention but there is no time to look n code ...anyone knows any good course that I can refer ..youtube udemy pluralsight I have checked and found some but need some genuine feedback so that time is not wasted ..!let me know if you have any suggestion