Using the new and delete operators, we can create arrays at runtime by dynamic memory allocation. The general form for doing this is:

p_var = new array_type[size];

size specifies the no of elements in the array

To free an array we use:

delete[ ]p_var; // the [ ] tells delete that an array is being freed.

Consider following program:

#include <iostream>

#include <new>

using namespace std;

int main()

{

int *p, i;

try

{

p = new int(10); //allocate array of 10 integers

}

catch (bad_alloc x)

{

cout << “Memory allocation failed”;

return 1;

}

for (i = 0; i < 10; i++)

p[i] = i;

for (i = 0; i < 10; i++)

cout <<p[i]<<”n”;

delete [ ] p; //free the array

return 0;

}