How to pass two dimensional array of an unknown size to a function

Question

I want to make class library, a function which its parameter is a matrix of unknown size, and the user will create his own matrix with his own size and pass it to this funct

Answer 1

use this method declare an array of pointers ex: int *a[n]; Then allocate memory for them using a for loop ex:

for( int i=0 ; i

Now pass the argument like normal array. ex: print_array(a,n); And print_array function looks like

print_array(int **a,int n)//the prototype for the print_array
{
 //access the array using index such as
std:: cout<

The above case is for the array of nxn incase mxn is required then allocate the memory like

for( int i=0 ; i

then pass the both m,n and to the function and access the array in the for loop.