Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Lära Pass by Reference | Functions
C++ Intermediate | Mobile-Friendly

bookPass by Reference

By reference:


              
12345678910

            
void incValue(int &x) {
    x++;
}

int main() {
    int x = 1;
    incValue(x);
&nbsp;&nbsp;&nbsp;&nbsp;cout << x; 
&nbsp;&nbsp;&nbsp;&nbsp;return 0;
}
copy

Here we change x as the function works with the address (reference) of this variable. It can be useful in case you need to change the value of the parameters.

question mark

What the main difference between passing by value and by reference?

Select the correct answer

Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

Avsnitt 4. Kapitel 8

Fråga AI

expand

Fråga AI

ChatGPT

Fråga vad du vill eller prova någon av de föreslagna frågorna för att starta vårt samtal

Awesome!

Completion rate improved to 2.94

bookPass by Reference

Svep för att visa menyn

By reference:


              
12345678910

            
void incValue(int &x) {
&nbsp;&nbsp;&nbsp;&nbsp;x++;
}

int main() {
&nbsp;&nbsp;&nbsp;&nbsp;int x = 1;
&nbsp;&nbsp;&nbsp;&nbsp;incValue(x);
&nbsp;&nbsp;&nbsp;&nbsp;cout << x; 
&nbsp;&nbsp;&nbsp;&nbsp;return 0;
}
copy

Here we change x as the function works with the address (reference) of this variable. It can be useful in case you need to change the value of the parameters.

question mark

What the main difference between passing by value and by reference?

Select the correct answer

Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

Avsnitt 4. Kapitel 8
some-alt