program

Question

#include<stdio.h>

int add (void);
void main()
{
int s;

s=add();
printf("sum is %d",s);
getch();

}
int add()
{
int a,b,c;
printf("enter two numbers");
scanf("%d %d",&a,&b);
c=a+b;
return(c);
}
what is the error in this?

Answer 1

clrscr() function definition is available in conio.h header file so you need to include it .
Except that nothing wrong in logic

Answer 2

when i removed conio.h &clrscr then still error is coming . what should i do?

Answer 3

Change return type of main to int.
this error is only because of compilers you are working.
In many compilers default return type must be int .
If you execute same code in "Turbo C " you need not get any errors.
Also getch() function also available in conio.h
header file.

Hope you understand.

Answer 4

thanks