/** 
 * Alex Cohn and Jordan Shkolnick
 * 3/9/10
 * CSC323: make
 * array-utils.c: contains string swap method.
**/


#include "array-utils.h"

/**
 * Swap the elements in positions i and j of A.
 * Pre: 
 *   0 <= i,j < length of A
 *   A[i] = I
 *   A[j] = J
 * Post
 *   A[i] = J
 *   A[j] = I
 *   For all x, x != i and x != j, A[x] is unchanged.
 */
void
str_swap (char *A[], int i, int j)
{
  char* temp = A[i];
  A[i] = A[j];
  A[j] = temp;
}