Function with argument but no return value
Here the function have argument so the calling function send data to the called
function but called function dose n’t return value.
There could be occasions where we may need to design functions that may not take any arguments but returns a value to the calling function. A example for this is getchar function it has no parameters but it returns an integer an integer type data that represents a character.
Syntax:
void fun (int,int);
main()
{
int (a,b);
}
void fun(int x, int y);
{
Statement;
}
Example:
#include <math.h>
#include <stdio.h>
int sum();
int main()
{
int num;
num = sum();
printf(" Sum of two given values = %d", num);
return 0;
}
int sum()
{
int a = 50, b = 80, sum;
sum = sqrt(a) + sqrt(b);
return sum;
}
Output:
Sum of two given values = 16
