What you’re calling “a stack” is just a C struct with an array of 12 elements and a couple of ints in … Structures are the containers like arrays. There is no way to tell from the above that the function get_data isn't allowed to look at what len points to. for example, pointerToFunc f( char c ){} When n is equal to 0, the if condition fails and the else part is executed returning the sum of integers ultimately to the main() function. C Like we have array of integers, array of pointers etc, we can also have array of structure variables. What are pointers to structures in C language? - Tutorials Point Example: Passing Pointer to a Function in C Programming. A lot of call back functions are used in the case of … … Pointer to a Structure in C In this article, entire structure is passed to the function. 09, Jul 11. Return Array From Function C++ Returning pointers from a function. This type of passing is also called as pass by value. The use of passing by pointer is to change the data hold by the variable. Simple example is a swapping example: In the below example, we have a swap function that accepts 2 int pointer. C Programming Multiple Choice Question - Functions And Pointers. In the following example we are creating two function declarations that takes address of student structure. Pointer to Function as an Argument. These Multiple Choice Questions (mcq) should be practiced to improve the C programming skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other … In this tutorial, we are going to learn about how to pass an array (1-D or 2D) to a function. returnType functionName(dataType paramName, ...); Example: struct student getDetail(void); In the above example we have a function by the name getDetail. We can get the address of memory by using the function pointer. C Function Returning The declaration of a structure pointer is similar to the declaration of the structure variable. Return a Struct From Function in C | Delft Stack Structure definition will be available within the function only.