Defining Arrays

[Nuwan Kodagoda <nuwank@xxxxxxxx>]

Hi,

	I am very confused about the way arrays are initialized under g++.  (I am 
using Red Hat Linux 9)

	int size;
	cin >> size;
	int myarray[size];

	According to what I had known earlier this should not be possible since 
the size of the array should be a constant.

	But this seems to work perfectly under g++.  To my knowledge in Standard 
C++ you are not allowed to use a variable during a array declaration.

	If you can create dynamic arrays this way, why bother using dynamic arrays 
using pointers ?

	e.g.

	int size;
	cin >> size;
	int * pmyarray = new int[size];


Nuwan