C_99 Returning Pointer from Function in C | C Language Tutorials

But will returning a pointer be of any use since memory allocation to local variables of function will get deallocated after function exits , thus pointing to that location will be useless

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If a is stored in stack memory of the returnPointer function then how it's not getting deleted when control is reaching out of this function

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How to return anything from a C/C++ function like a string, or, array, int, or pointer. Please read on.
Usually, a function can only return a single value, using the return mechanism. If you try to return more than one value from a function, only one value will be returned that appears at the rightmost place of the return statement. However, you can return multiple values from the function using the pointer, array, or structure.
Using Pointers
You can use pointers to return more than one value from a function by passing pointers as function parameters and use them to set multiple values which will then have visibility in the caller function.
Using Array
If you want to return multiple values of the same data type from a single function, then using an array is best suited because when an array name is passed as an argument then its base address is passed to the function so whatever changes made to the array is changed in the original array.
Using Structure
Another way to return multiple values from a function is by using structures. Structure is a user-defined datatype in C that can hold several datatypes of the same or different types. The idea is to create a structure variable containing all required data types as its members and return that from the function. We can then retrieve the values from the structure variable inside our caller function.

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Why a is treated as a pointer here not as an array?

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Maam then why you are not writing it as pointer in the function defination part ( int * p) you are writing it as (int a [ ]) why so.. please explain..?I have the screenshot to help you understand better my doubt but I cant upload it here due to non-availability of options

Hi mam,I have not clrafied y we cannot do a=a+2 , as per my understanding if we want to access the third element in array a we can do a[2],and other way may be a=a+2;
if possible could you please give an example to get this

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