Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Lære Dereferencing | References & Pointers
C++ Intermediate | Mobile-Friendly

Dereferencing

Sveip for å vise menyen

To operate with the variable, you can also access it by dereferencing the variable's pointer. For example, you can change the value of the variable by using pointers:


              
123456

            
int b = 1;
int *pb = &b;

*pb = *pb + 2;  // b = 1 + 2
b = 3 + *pb;   // b = 3 + 3
cout << b << endl;

In all the statements above, we added numbers to the value of b and assigned the result to the variable b.

question-icon

Decrease x by 3 using pointers.

int x = 1;
int *px = &x;

*px =;

Klikk eller dra`n`slipp elementer og fyll inn de tomme feltene

Alt var klart?

Hvordan kan vi forbedre det?

Takk for tilbakemeldingene dine!

Seksjon 2. Kapittel 3

Spør AI

expand

Spør AI

ChatGPT

Spør om hva du vil, eller prøv ett av de foreslåtte spørsmålene for å starte chatten vår

Dereferencing

To operate with the variable, you can also access it by dereferencing the variable's pointer. For example, you can change the value of the variable by using pointers:


              
123456

            
int b = 1;
int *pb = &b;

*pb = *pb + 2;  // b = 1 + 2
b = 3 + *pb;   // b = 3 + 3
cout << b << endl;

In all the statements above, we added numbers to the value of b and assigned the result to the variable b.

Alt var klart?

Hvordan kan vi forbedre det?

Takk for tilbakemeldingene dine!

Seksjon 2. Kapittel 3
some-alt