How are int main() and void main() different?

Replies

• 

  Deepika Bansal

  Difference betwèen int main and void main: See like any other function, main is also a function but with a special characteristic that the program execution always start from main. So the function main needs arguments and a return type. These int and void are its return type. Void means it will not return any value, which is also ok.
  But if want to know whether the program has terminated successfully or not, we need a return value which can be zero or a non zero value. Hence the functuon becomes int main () and is recommended over vpid main ().
  Hope its helps you.
• 

  Rahul Naraniya

  The same thing we can do by using getch() (for void main). then why int main is suggested?? is there any advantage of int main over void main??
• 

  beingab

  the standard statements are:
  int main(void)
  int main(int argc, char **argv)
  
  You can also use main() simply that means same as int main()..
  int main() returns an exit value to compiler and works on most compilers.
  And getch() as you mentioned has nothing to do with it. It gets character input on screen or else holds screen in other words
• 

  Rahul Naraniya

  ohk... got it thanks... 😀
• 

  ravirajput

  goood yr...
• 

  SK Jindal

  Rahul Naraniya

  can anyone explain what is difference between int main and void main??? why it is suggested to use int main instead of void main?? and why we need [HASHTAG]#include[/HASHTAG] when we use int main???

  void implies no return type and int main means that main() will return an integer
• 

  kothandaraman

  #include
  void main()
  {
  clrscr();
  add(5,4);
  getch();
  }
  int add(int a,int b)
  {
  int c;
  c=a+b;
  printf("Output: %d",c);
  return 0;
  }

  now see the guys when you use the function having some parameters than time return some a and b values so now use int main function
  if use void add(int a,int b) system throw the error. so i use int add(int a,int b)
• 

  kothandaraman

  above the program any doubt message me
• 

  rahul69

  1. int main() is preferred over void main(), as per standards, and most new compilers supports int main() rather than void main().
  2. int main() can help to return the error code if your program fails due to some error.
  (Pre exception handling days, now you may use exception handling to handle issues,
  perhaps that's the reason in java we go as public static void main () )
  😀
• 

  Gowtham369369

  i have replaced void main() with int main() there is same result then what is the difference......?
• 

  Walter Boyd

  The difference is, in C, int main() can be called with any number of arguments, but int main(void)can only be called without any argument. Although it doesn’t make any difference most of the times, using “int main(void)” is a recommended practice in C.
• 

  Gowtham369369

  Okay! then I will use only int main() so that there will be no confusion for me....
• 

  Base Developer

  How can I came to know that program is returning a value after using int main function

  
  

• 

  GEETHA NANI

  can anyone suggest me a video of difference between this void main and int main

• 

  GEETHA NANI

  can anyone suggest me a video of difference between this void main and int main

• 

  Ankit Anand

  The above program has compilation error because we must define the add method before main method 

• 

  AdhikariHarika Reshma

  #-Link-Snipped-#

  #-Link-Snipped-# hope the above link for the difference between INT main and void main help you.