Pointer Arithmetic Practice
Compito
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- Create a pointer that points to the first variable.
- Find the distance between memory locations of this two variables.
- Using the pointer arithmetic move the pointer to the location of the second variable.
- Modify the value of dereferenced pointer to
50and output the second variable.
Soluzione
solution
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#include <iostream>
int main()
{
int firstVariable = 10;
int secondVariable = 20;
int *pointer = &firstVariable;
pointer += &secondVariable - pointer;
*pointer = 50;
std::cout << secondVariable << std::endl;
}
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Sezione 2. Capitolo 2
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#include <iostream>
int main()
{
int firstVariable = 10;
int secondVariable = 20;
int _ pointer = _ ___;
pointer += (&___ - ___);
_(pointer) = 50;
std::cout << secondVariable << std::endl;
}
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