Assigning Addresses to Pointers
When working with pointers, proper initialization is important to ensure they point to valid memory locations and prevent unexpected behavior.
Address-of and Dereference operators
To assign a value to the pointer we have to use address-of operator and to access the value of the memory address we have to use dereference operator.
-
&: the address-of operator, returns the memory address of its operand; -
*: the derefence operator, returns the value that stored in the memory address.
main.cpp
12345678#include <iostream> int main() { int variable = 10; std::cout << &variable << std::endl; std::cout << *(&variable) << std::endl; }
Using the address-of operator, we can assign these addresses to pointers, creating a direct link between the pointer and the memory location it points to.
Swipe to start coding
- Declare a pointer with an appropriate data type.
- Initialize it with a
variablememory address. - Output both the memory address the pointer points to and the value it holds.
Solução
solution.cpp
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When working with pointers, proper initialization is important to ensure they point to valid memory locations and prevent unexpected behavior.
Address-of and Dereference operators
To assign a value to the pointer we have to use address-of operator and to access the value of the memory address we have to use dereference operator.
-
&: the address-of operator, returns the memory address of its operand; -
*: the derefence operator, returns the value that stored in the memory address.
main.cpp
12345678#include <iostream> int main() { int variable = 10; std::cout << &variable << std::endl; std::cout << *(&variable) << std::endl; }
Using the address-of operator, we can assign these addresses to pointers, creating a direct link between the pointer and the memory location it points to.
Swipe to start coding
- Declare a pointer with an appropriate data type.
- Initialize it with a
variablememory address. - Output both the memory address the pointer points to and the value it holds.
Solução
solution.cpp
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Completion rate improved to 5.88single
