Shuffle an array of ints

gistfile1.c

#include <stdlib.h>
 
void shuffle(int *array, size_t n)
{
  if (n > 1) {
    size_t i;
    for (i = 0; i < n - 1; i++) {
      size_t j = i + rand() / (RAND_MAX / (n - i) + 1);
      int t = array[j];
      array[j] = array[i];
      array[i] = t;
    }
  } 
}