In this tutorial, you will learn to work with arrays. You can pass multi-dimensional arrays to functions just like a 1-D array, but you need to specify the size of the all other dimensions except the first one. C program to reverse an array using pointers. The calculation of the offset depends on the array dimensions. 2D Array is considered to be one of the simplest form under the multidimensional array. For e.g: If you need to pass arr[2][3] to a function called func_1(), then you need to declare the func_1() like this: 1 2 3 4. C program to swap two arrays using pointer. We already know that arrays are a collection of the same type of data that have a fixed size(in C programming language as in other languages we can increase the size of an array at runtime). This post is an extension of How to dynamically allocate a 2D array in C? One important thing for passing multidimensional arrays is, first array dimension does not have to be specified. In this tutorial we will learn to work with two dimensional arrays using pointers in C programming language. The array can hold 12 elements. 1-D arrays or one-dimensional array; 2-D arrays or two-dimensional arrays; and so on… In this tutorial, we will learn more about the 2D array. You will learn to declare, initialize and access elements of an array with the help of examples. The reasons for this are twofold: the main problem is that arrays are not pointers and the second inconvenience is the so called pointer decay. In the previous tutorial Pointers and One Dimensional Array we learned to work with one dimensional character array. In this topic, we are going to learn about 2D Arrays in C++. Feel free to checkout that tutorial. For example, if you want to store 100 integers, you can create an array for it. To store the entire list we use a 2d array of strings in C language. Two-dimensional Arrays : : The simplest form of multidimensional array is the two-dimensional array. Let’s take an example, Suppose int aiData[3][3] is a 2D array that has 3 rows and 3 columns. C Arrays. A one dimensional array can be easily passed as a pointer, but syntax for passing a 2D array to a function can be difficult to remember. You can consider the 2D array to be an array of a 1D array so as to comprehend it easily. The array of characters is called a string. For example, float x[3][4]; Here, x is a two-dimensional (2d) array. The returning variable's address is no longer valid because on pixels() return, the stack allocated variable goes out of scope. However, to work with multi-level data, we have to use the Multi-Dimensional Array. In C programming, you can create an array of arrays. In C language, the compiler calculates offset to access the element of the array. “Hi”, “Hello”, and e.t.c are the examples of String. Arrays can also be classified based on their dimensions, like:. C program to search an element in array using pointers. Similarly, the array of Strings is nothing but a two-dimensional (2D) array of characters. In C/C++, when you pass an array to a function, it decays to be a pointer pointing to first element of the array.So, in pixels() function, you are returning the address of a stack allocated variable. C program to copy one array to another using pointers. To declare an array of Strings in C, we must use the char data type. An array is a variable that can store multiple values. You can think the array as a table with 3 rows and each row has 4 columns. A two-dimensional array is, in essence, a list of one-dimensional arrays. An m × n (read as m by n) order matrix is a set of numbers arranged in m rows and n columns. The Two Dimensional Array in C language is nothing but an Array of Arrays. Access a 2d array using a single pointer. If the data is linear, we can use the One Dimensional Array. These arrays are known as multidimensional arrays. C program to sort array using pointers. 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