passing a matrix in a function c

1void ins (size_t rows, size_t columns, int matrix[rows][columns]);
2

1void ins (int (*matrix)[100], int row, int column);
2

1#include <stdio.h>
2
3//passing 2D array as a parameter to a function
4void fun(int *arr, int m, int n)
5{
6	int i, j;
7	for (i = 0; i < m; i++){
8	for (j = 0; j < n; j++)
9		printf("%d ", *((arr+i*n) + j));
10		printf("\n");
11	}
12}
13
14int main(void)
15{
16	int arr[][4] = {{1, 2, 3,4}, {4, 5, 6,7}, {7, 8, 9,0}};
17	int m = 3, n = 4; //m - no.of rows, n - no.of col
18
19	fun(&arr, m, n);
20	return 0;
21}

1void ins (int matrix[SIZE][SIZE], int row, int column);
2