# include <stdio.h>

//
//  Program 11.11, Stephen Kochan, Programming in C.
//
int main ( void );
int arraySum ( int array[], const int n );

int main ( void )
{
  int values[10] = { 3, 7, -9, 3, 6, -1, 7, 9, 1, -5 };

  printf ( "The sum is %i.\n", arraySum ( values, 10 ) );

  return 0;
}

int arraySum ( int array[], const int n )
{
  int sum = 0, *ptr;
  int * const arrayEnd = array + n;

  for ( ptr = array; ptr < arrayEnd; ptr++ )
  {
    sum = sum + *ptr;
  }
  return sum;
}