Return pointer from function
- how to return pointer in c
- how to return null pointer in c
- how to return pointer array in c
- how to return a pointer in cpp
What is the value of null in c
How to return pointer array in c.
Return a Pointer from a Function in C
In C programming, a function can be defined to have more than one argument, but it can return only one expression to the calling function.
A function can return a single value that may be any type of variable, either of a primary type (such as int, float, char, etc.), a pointer to a variable of primary or user−defined type, or a pointer to any variables.
Read this chapter to learn the different ways in which a function in a C program returns a pointer.
Return a Static Array from a Function in C
If a function has a local variable or a local array, then returning a pointer of the local variable is not acceptable because it points to a variable that no longer exists.
Note that a local variable ceases to exist as soon as the scope of the function is over.
Example 1
The following example shows how you can use a static array inside the called function (arrfunction) and return its pointer back to the main() function.
#include <stdio.h> #include <math.h> float * arrfunction(int); int main(){ int x = 100, i; float *arr =- how to return void pointer in c
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