Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Lære Challenge: Pointer Arithmetic | Pointer Arithmetic
C++ Pointers and References

bookChallenge: Pointer Arithmetic

Opgave

Swipe to start coding

Sometimes in programming, you may want to access the value of a variable indirectly using a pointer.

In this task, you will write a function that starts with one variable, moves a pointer to another variable, and returns the value stored there.

  1. Calculate the distance between the two pointers by subtracting the address of p_start from the address of p_target.
  2. Add this difference to the p_start pointer. This gives you a pointer to the value stored in p_target.
  3. Return the value pointed to by p_start.

Løsning

Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 2. Kapitel 2
single

single

Spørg AI

expand

Spørg AI

ChatGPT

Spørg om hvad som helst eller prøv et af de foreslåede spørgsmål for at starte vores chat

close

Awesome!

Completion rate improved to 5.88

bookChallenge: Pointer Arithmetic

Stryg for at vise menuen

Opgave

Swipe to start coding

Sometimes in programming, you may want to access the value of a variable indirectly using a pointer.

In this task, you will write a function that starts with one variable, moves a pointer to another variable, and returns the value stored there.

  1. Calculate the distance between the two pointers by subtracting the address of p_start from the address of p_target.
  2. Add this difference to the p_start pointer. This gives you a pointer to the value stored in p_target.
  3. Return the value pointed to by p_start.

Løsning

Switch to desktopSkift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder
Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 2. Kapitel 2
single

single

some-alt