pointer to multidimensional array

[Satya]

Hi all,

what is the correct method of declaring pointer to multidimensional array

int array[3][4];
int *p = array;

The above code works but it shows warning. Is it an invalid way of using the pointer? the array is an address then why am i getting warning?

Thanks and regards,
Satya

[laserlight]

An array is more than just an address. Rather, an array is a contiguous sequence of objects of the same type. Hence, the array itself has a type, i.e., a combination of the type of an element of the array and the number of elements in the array.

In many contexts, an array is converted to a pointer to its first element. So, an array of 3 arrays of 4 ints is converted to a pointer to an array of 4 ints. Therefore, you should declare and initialise such a pointer:

int array[3][4];
int (*p)[4] = array;