declararion

[slender flint]

#include <iostream>

int doubleNumber() {
std::cin >> x;
int x{};

return 2 * x;
}

int main() {
int x{doubleNumber()};
std::cout << x << '\n';
}

[robust tide]

When your question is answered use !solved to mark the question as resolved.

Remember to ask specific questions, provide necessary details, and reduce your question to its simplest form. For tips on how to ask a good question run !howto ask.

[slender flint]

!format

[robust tide]

#include <iostream>

int doubleNumber() {
  std::cin >> x;
  int x{};

  return 2 * x;
}

int main() {
  int x{doubleNumber()};
  std::cout << x << '\n';
}

Oppenheimer

[slender flint]

;solved

[violet quest]

are you sure this works @slender flint ?

[slender flint]

No it doesn't thats why I was about to ask lol

[violet quest]

so think about how variables work

what needs to happen for you to use them?

[slender flint]

This std::cin>>x; is input then after the input,the input is stored in the variable int x{};
Its logical this way for input to afterwards go in the variable

You can't start with the variable then input doesn't make sense

[violet quest]

hm i will have to correct you 😄

the problem is, if x is not defined when you take input from std::cin, where does the input go?

think of it this way

if there's no basket to collect fruits in, where do i store the fruits?

[slender flint]

The fruits are input and the basket is variable

Before variable there's fruit

[violet quest]

yes but in our case the fruit really needs a basket

it needs to know that there's a basket otherwise it will say "I cannot jump into the dark, I'll die!"

[slender flint]

"I cannot jump into the dark"

Jump is starting point once you reach the basket its ending point

[violet quest]

yes but at that point in time, the basket doesn't really exist now, does it?

the basket comes into existence once the fruit has already dropped into the abyss, because that's what you decided to do

[slender flint]

Unless to your understanding and expertise according to c++ language

They has to be evidence of a container before I put something in, ..........then I'll just have to agree.

[violet quest]

i don't quite understand. I'm not a native speaker 😄

[slender flint]

Oh yeah

!solved