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C++ Intermediate | Mobile-Friendly

bookPass by Reference

By reference:


              
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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.

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

Select the correct answer

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Seksjon 4. Kapittel 8

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bookPass by Reference

Sveip for å vise menyen

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

Alt var klart?

Hvordan kan vi forbedre det?

Takk for tilbakemeldingene dine!

Seksjon 4. Kapittel 8
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