C - Pointers Vs Multidimensional Arrays

Pointers Vs Multidimensional Arrays

int ar[10][20]; // two-dim array
int* ap[10];	// array of pointers to ints

• ar is a true two-dimensional array.
• For ap, however, the definition only allocates 10 pointers and doesn’t initialize them.
• The advantage of the pointer array is that the rows of the array may be of different lengths.