Just to help visualize it, here is what a 2-D, 5×5 array looks like:<\/p>\n
This is a small slice of code adapted form a school project I was working on that I feel really helps explain the concept of pointers with arrays. It’s a 2-D\u00a0array: an array of pointers, each of which\u00a0points to an array of ints. It essentially forms a 2×2 grid (but you can make it other sizes too).<\/p>\n
\/\/function prototype\r\nvoid fillMatrix(int** myArray, int size);\r\n\r\n\/\/main() function\r\nint main()\r\n{\r\n const int SIZE = 4;\r\n int** p_myArray = new int*[2]; \/\/make the initial x-axis which has two slots\r\n p_myArray[0] = new int[2]; \/\/make the 1st y-axis which has two slots\r\n p_myArray[1] = new int[2]; \/\/make the 2nd y-axis which has two slots\r\n\r\n \/\/alternatively, you could do it this way (if making a 3x3 grid with SIZE=3):\r\n \/*\r\n int** p_myArray = new int*[3]; \r\n for (int i = 0; i < 4; i++) \/\/for every x-axis...\r\n {\r\n p_myArray[i] = new int[3]; \/\/make a y-axis three slots big \r\n }\r\n *\/\r\n\r\n \/\/function call\r\n fillMatrix(p_myArray, SIZE);\r\n}\r\n\r\n\/\/function definition\r\nvoid fillMatrix(int** myArray, int size)\r\n{\r\n cout << \"Please enter \" << size << \" integers to fill the array.\" << endl;\r\n for (int i = 0; i < (2); i++)\r\n {\r\n cin >> myArray[0][i];\r\n }\r\n}<\/pre>\nJust to help visualize it, here is what a 2-D, 5×5 array looks like:<\/p>\n
![\"M75kn\"](\"https:\/\/www.tayloraliss.com\/blog\/wp-content\/uploads\/2016\/01\/M75kn.png\")
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