Practical C Programming

How to do it…

1. Define a matrix of 10 rows and 10 columns as follows (you can have a bigger matrix if you wish):

int a[10][10]

2. Enter the size of the rows and columns as follows:

    printf("Enter rows and columns of matrix: ");    scanf("%d %d", &r, &c);

3. Allocate memory locations equal to r *c quantity for keeping the matrix elements as follows:

    ptr = (int *)malloc(r * c * sizeof(int));

4. Enter elements of the matrix that will be assigned sequentially to each allocated memory as follows:

    for(i=0; i<r; ++i)    {        for(j=0; j<c; ++j)        {            scanf("%d", &m);             *(ptr+ i*c + j)=m;        }    }

5. In order to access this matrix via a pointer, set a ptr pointer to point at the first memory location of the allocated memory block, as shown in Figure 5.30. The moment that ...