Re: Question about arrays in objects

From: Jacques Labuschagne (jacques_at_clawshrimp.com)
Date: 01/17/04 

Date: Sat, 17 Jan 2004 15:48:38 +1300

Joec wrote:
> I want to create a 2d array as an object member.
>
> like:
>
> class x{
> private:
> const int num;
> int array[num];
> ...
>
> do I have to use a pointer like:
> int *px;
>
> then put the array in the constructor and use the pointer?
>

The obvious solutions are

class x{
     int* array;
   public:
     explicit x(int N): array(new int[N]){}
     ~x(){ delete[] array; }
};

or

class x{
     int array[12]; // yuck
};

or

template<int N>
class x{
     int array[N];
};

HTH,
Jacques

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