C++: Need to create an array with a size declared by the user.

[Usul]

as topic, I need to find a way to declare an array after I ask the user for a size.
I personally think it's impossible, since the numbere of variables in an array is stucked into the code, but as you see i'm not really into this stuff, and my Comp Sci teacher says it can be done, but "forgot"how, and offered me a huge extra credit, so.....

 

[BFG10K]

It's a piece of cake to do this, but you need to understand how pointers work.

int *array_ptr, size;

cout << &quot;Enter array size\n&quot;;
cin >> size;

array_ptr = new int [size];

 

[Usul]

Thanks 🙂

 

[chameleon]

Don't forget to delete that pointer.

 

[Moohooya]

with

delete[] array_ptr;

Moohoo

 

[Usul]

Thanks again!
Tomorrow I'll have the class 🙂