C++ How to Program, 10/e

... initializes the elements of row 0 followed by the elements of row 1. So, the first three values initialize row 0’s elements to 1, 2 and 3, and the last three initialize row 1’s elements to 4, 5 and 6. The declaration of array2 (line 13) provides only five initializers. The initializers are assigned to row 0, then row 1. Any elements that do not have an explicit initializer are initialized to zero, so array2[1][2] is 0.

The program calls function printArray to output each array’s elements. Notice that the function prototype (line 9) and definition (lines 23–33) specify that the function receives a two-row and three-column array. The parameter receives the array by reference and is declared const because the function does not modify the array’s elements. ...