For what purpose -> is used in c++

For what purpose -> is used in c++

Please admins clear my doubt

Please admins clear my doubt

overloaded "." operator for object

overloaded "." operator for object

for pointer

overloaded "." operator for object

I am asking about use of -> My teacher said that it is used by pointer to access elements of structure

I am asking about use of -> My teacher said that it is used by pointer to access elements of structure

not only for this

I am asking about use of -> My teacher said that it is used by pointer to access elements of structure

U can use it for pointers to ur objects

I am asking about use of -> My teacher said that it is used by pointer to access elements of structure

object->method() is the same as (*object).method()

U can use it for pointers to ur objects

Can you give an simple example of code

object->method() is the same as (*object).method()

Francisco did this

object->method() is the same as (*object).method()

What happened here I didn't get can you explain it A pointer is working as object 😵😵😵😵

What happened here I didn't get can you explain it A pointer is working as object 😵😵😵😵

The operator-> dereferences the object and access its methods/attributes

What happened here I didn't get can you explain it A pointer is working as object 😵😵😵😵

it's a pointer to object and u can use it to call a method of this object in memory

The example I gave you is simple enough to understand it

The example I gave you is simple enough to understand it

I think he needs to learn about memory allocation 🤔

Yep, I think so

What a fuck😅

what? wanna appeal?

Hi guys - learning boost TCP sockets, wondering how I can pipe all data from one socket to another, in both directions?

Solved it myself.

Solved it myself.

😁😁😁

I want to learn c/c++

Are you new to programming in general?

@LearnJavaCoding best to learn java code

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@LearnJavaCoding best to learn java code

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Hey everyone

Whats the difference between std::move and std::swap?

The implementation look very much the same to me :(

😂😂😂😅

The implementation look very much the same to me :(

Fucking not. Completely different things

Have you read descriptions?

Whats the difference between std::move and std::swap?

std:swap swaps objects, std::move casts the variable to rvalue reference

So completely different tasks, producing different results

i dont really understand r-value reference

std:swap swaps objects, std::move casts the variable to rvalue reference

ahh ic

Have you read descriptions?

i did

i dont really understand r-value reference

Reference to temporary

If I've a vector : vector<int> v; and some elements are present in it

Then does writing v+1 gives the addresss of the 2nd element?

i dont really understand r-value reference

Not many people do. Imagine calling a function with a value created like that: int smt = calcSmt(MyClass(arg)); This way compiler knows that MyClass is a temporary and you don't care what happens with it after the call. So it can call a move constructor with it instead of copy constructor. With std::move you can tell the compiler "I don't need this variable anymore, you can move it`, then the compiler will treat your variable as a temporary. The tricky part is what will happen to this variable after the call. - it can keep the same value as earlier (e.g. if you call move on an int, it will be replaced with copy assignment) - it can be cleared and ready to reuse (it's the case of STL containers) - it can be in some invalid state, working with which will send your program to UB The only thing that is guaranteed that this moved object can be correctly destructed

I want to make a recursive function such that each time i call it then I do fun(v+1) considers the 2nd element in the caller as the 1st element in the called function

To tackle that, do I need to pass the index?

doesn't v+1 work?

To tackle that, do I need to pass the index?

Try using iterators

Hello!?

Welcome!

Thanks

How are you?

Thanku

Okay

Then does writing v+1 gives the addresss of the 2nd element?

v.begin() + 1

v.begin() + 1

Basically I then want the called function to treat it like 0th index as in case of arrays

Basically I then want the called function to treat it like 0th index as in case of arrays

Argument will be vector<int>::iterator

You are free to use it as begin

ok so let me try it. thanx

/adminlist

How to gather two array

How to merge two array in third array

Create an array with a size of the sum of both arrays and then move element by element from the old ones into the new one.

How to solve problem

Sorry but that program in java but i want to help about how to merge two array in third array?

Sorry but that program in java but i want to help about how to merge two array in third array?

/warn Read the rules to solve yourr probs

Ok

How to merge two array in third array

Just a starter point: in your example exist only One Array, not Two or Three

How to solve problem

We don't use java here

And don't watch screen pictures

How to solve problem

why are you asking a Java question in a cpp group

How to solve problem

u never declare for loop variables outside the loop

Sorry but that program in java but i want to help about how to merge two array in third array?

your question isn't clear

.

There is a java group for java

As there is a C/C++ group for C and C++-related questions

we could do it but we dont knw whats the qtn

Yes

Are you new to programming in general?

Yes

try this book you'll love it

piracy?

after every chapter there are programming challenges

Yes

talking to u

piracy?

whatever u call it