Returning from a void function [closed]

Question

Which is more correct way to return from function:

void function() {   // blah some code } 

OR

void function() {   // blah some code   return; } 

---

Rationale for second way:

1. It expresses developer intentions more clearly.
2. It helps detecting function end at pre-compile time:

Suppose you have such scenario- you have bunch of functions and you must inject some code at the end of those functions. But for some reasons you don't want / or can't modify such huge amount of functions. What can you do about that ? Return & macro comes into play, for example:

#include<stdio.h>  #define MAX_LINES 1000 #define XCAT(a,b) a##b #define CAT(a,b) XCAT(a,b) #define return returns[__LINE__] = 1;\         if (returns[__LINE__])\            {printf("End of function on %d line.\n",__LINE__);}\         int CAT(tmp,__LINE__); \         if ((CAT(tmp,__LINE__)=returns[__LINE__], returns[__LINE__] = 0, CAT(tmp,__LINE__)))\               return  static int returns[MAX_LINES];   void function1(void) {     return; }  void function2(void) {     return; }  int main() {     function1();     function2();      return 0; } 

Answer 1

Neither is more correct, so take your pick. The empty return; statement is provided to allow a return in a void function from somewhere other than the end. No other reason I believe.

Answer 2

The only reason to have a return in a void function would be to exit early due to some conditional statement:

void foo(int y) {     if(y == 0) return;      // do stuff with y } 

As unwind said: when the code ends, it ends. No need for an explicit return at the end.