Beginer problem: variable array size

["Nacho" <NACHANGA@terra.es>]

Hi everyone!

I am learning ada and i have to implement an array of unknown size until
rutime.
The array must be resizable at runtime. This is easy to achieve for me in
other lenguajes like c++, but i am new to ada and i don't know hot to
resolve the problem. The solution in c++ code could be:



int variable=50;    //let's make an array of 50 elements.
int* p;    //pointer to int, if the array is of integers.
p=new int[variable];    //we reserve memory for 50 integers.


....  //some code with the array here.

delete [] p;    //we free the allocated memory for the array.
variable=80;    //we change the size of the array.
p=new int[variable];    //we have a new array with the new size.




How can I do the same in ada?
How can I use dinamics arrays of variable size in ada?

I am sorry for my poor English.

Thanks.