In case of char arrays in c++, why I can't do this to copy char arrays. a=b; Say a and b are two char arrays

Could someone explain why it gives diffrent results?

In the first one you are passing the variable by reference i.e. the variable alias. Whatever the function makes changes to it, they will get reflected to original variable.PS this one is lvalue reference. But that's not the case with pass by value, you are just passing the copy of original variable, whatever changes are made would only reflect to the copy which will get destructed as soon as the function is done executing i.e. it will go out of scope. Hope this helps.

Hi! Can you explain what's wrong. I defined a struct in .h file. '''private: struct stu{param ; param; }; ''' But i don't know how to access the struct in cpp file. Cpp file sees all the functions from h but not the struct. When I try '''struct stu name''' it gives an error and all other combinations ( possible ways of defining struct in cpp referencing the struct from header don't work)

The space before the format specifier asks scanf to consume any <space characters> like tab, enter and so on before attempting to read a char. The enter that you pressed after reading the radius is still in the input buffer and the space in front of %c asks scanf to read all of that before attempting to read a character

If you define it in a private section, how can you expect to access it? Move the inner class to a public section if you want it to be accessed by outside code.

I defined it in the header file and tried to access from cpp

Guys I need a program that the input should be taken as 200 questions and gives the ouput as 20 questions random choice Please guys Can anyone help me

Guys I need a program that the input should be taken as 200 questions and gives the ouput as 20 questions random choice Please guys Can anyone help me

Anyone knows how to build shell?

Here it goes. https://brennan.io/2015/01/16/write-a-shell-in-c/ https://github.com/kamalmarhubi/shell-workshop https://danishpraka.sh/2018/01/15/write-a-shell.html

I need some help

why not using count for count number of dived by ten (example if counter == 2 so record one hundred in array of string ) and then i hope you to get my idea ???

I get you

A lockdown has been put in place due to the pandemic. You cannot step out to buy food, however you can have food delivered to you. You can purchase any amount of food in one delivery. There is a constant delivery fee for every delivery, regardless of the amount of food purchased in the delivery. Each type of food on the menu has two properties: a price-per-meal, and freshness-time. One "meal" of food will feed you for one day; once a meal has been eaten, it cannot be eaten again. The freshness-time of a type of food is the maximum number of days for which that food can still be eaten, counting from when you received it. A freshness-time of zero means you must eat that type of food on the day of delivery. In a single delivery you can purchase as many different types of food, and as many meals of each of those types, as you have money for. The food will be delivered on the same day that you purchased it, and you will eat one of the food on the same day. Food delivery is the only way for you to receive food. Given an amount of money, which you can spend on meal prices and delivery fees, what is the maximum number of days for which you can eat food every day - counting from the day which you order? Input Each test case will begin with three integers, A, B and C, denoting the amount of money you have, the delivery fee, and the number of types of food provided by the restaurant, respectively. C lines follow, each will consist of two integers, Pi and Fi, denoting respectively the price-per-meal and freshness-time of one type of food Output Number of days you will eat food Sample Input 32 5 2 5 0 10 2 Sample Output 3

Hi everyone I've got a header file contains a templated class And now I want to share this code with others but don't want that they be able to see implementation details. I just want they use it. How can I hide source code when it is in header file?

#include<stdio.h> char* reverse(char*); int main() { printf("%s",reverse("computer")); } char* reverse(char *p) { int l,i; char ch; for(l=0;*(p+l)!='\0';l++); for(i=0;i<l/2;i++) { ch=*(p+i); *(p+i)=*(p+l-1-i); *(p+l-1-i)=ch; } return (p); } //Es program me output print kyu ni hora reverse hone ke baad //Anyone?

Koi help nhe krayga 🥺

Anyone tell me one thing i have one issue in hash Supposed i have aaray size is 6 {3,4,3,5,6,4} so i wana map its in form of 1=0,2=0,3=2,4=2,5=1,6=1

How do you pronounce the -> in your head? Hey guys, I am freaking out with all these symbols in Rust. I thought the book was a bit easy at first but then you get the this type of syntax. I wish the return type was like Java's. When I try to understand something I usually say it with my inner voice. In the case of the arrow I am not sure. I am really confused with other languages. Is it "for each" "return" "to"? https://redd.it/pez698 @r_rust

Not relevant to C/C++

Every talk about Rust is so relavent to C++

Every talk about python is so relevant to rust

Every talk about Rust is so relavent to C++

Not really. Just because one is considered a better version of the other it doesn't mean that every discussion is relevant. Moreover just saying "it is relevant" without saying why a discussion on what goes in your head when you use arrow operator in rust is relevant to C++ just doesn't seem right. And so if discussion on every language is relevant why don't you go ahead and try asking Rust questions in a stackoverflow group for C++?

Also * A little bit of programming related memes, jokes, shitposting are allowed.

Because stackoverflow is for technical stuff only The group here is more open I recall that you can post programming memes here Is that allowed in stackoverflow

Ok so your idea of saying "Discussions on rust is relevant" is because we allow programming memes here (I don't agree with that decision anyway)? So in your words we should let people discuss golang, D, Algol, Smalltalk as well here as they may all be considered relevant to C/C++

But in C++ context We use it mostly with pointers