Help make this function recursive in language C.

//power function

double power(double x, int n){

//if power zero return 1

if(n==0)

return 1;

//if power is not zero

double p = 1; //initialize power value to 0

int i; //variable to iterate

//iterate n times and multiply x, n times

for(i=0;i

p = p * x;

}

//return power value

return p;

}