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Aprenda Dereferencing | References & Pointers
C++ Intermediate | Mobile-Friendly

bookDereferencing

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;
copy

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

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Decrease x by 3 using pointers.

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

*px =
;

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Seção 2. Capítulo 3

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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;
copy

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 =
;

Clique ou arraste solte itens e preencha os espaços

Tudo estava claro?

Como podemos melhorá-lo?

Obrigado pelo seu feedback!

Seção 2. Capítulo 3
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