Re: array pointer

[Glynn Clements <glynn@xxxxxxxxxxxxxxxxxx>]

ratheesh k wrote:

> int  *s_ptr;
> int  **d_ptr;
> int arr[2][2]={1,2,3,4};
> 
> s_ptr=*arr;  /* This is perfectly fine */
> d_ptr=arr /* this line throws a  warning: assignment from incompatible
> pointer type */  ????????

Arrays are not pointers. If you use the name of an array as an
expression, it is treated as a pointer to the first element.

For one-dimensional arrays, this means that you can use an array in
most places where a pointer is required. But this doesn't hold for
higher dimensions; an array of pointers isn't the same as an array of
arrays. It also doesn't hold for many other cases, i.e. sizeof,
variable declarations, etc.

-- 
Glynn Clements <glynn@xxxxxxxxxxxxxxxxxx>
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