What is Ellipsis or … in c ?

Ellipsis is there consecutive period (.) with no
white space. With the help of ellipsis we can write a function of variable
number of parameter. For example:



#include
int number(int a,...){
   return a;
}


int main() {
   int i;
   i=number(5,4,3,2,1);
   printf("%d",i);

  
return 0;
}

Output: 5





Ellipsis can be
used as a variable number of parameters or a variable which