Function should return a value in c?

Hi

I have a general query. I just started learning C. But have a problem. I wrote a simple program:-

main()

{
int a,b,c;
a=10;
b=20;
c=a+b;

printf("%d",c);

}

But enable to give output. Always a massage come: Function should return a value

Why?

 

replace main with void main() ... yaa a function should return a value.. and when it doesn't, its return type is void

 

#include<stdio.h> // standard input output header file
#include<conio.h>
main()
{
int a,b,c;
clrscr();
a=10;
b=20;
c=a+b;
printf("%d",c);
getch();
}


Try this, include files it will run, but you too not doing mistake dude.
But if you again face this problem then use void because if a function not returning a value then always use void function_name()

 

hi,
You should write void main() instead of main() when you are not returning any value. Your error would be solved by this.