void
selection_sort(void *vector[], int length, int (*less)(void *, void *))
{
for (int k = 1; k < length; k++)
{
void *temp = vector[k];
int i;
for (i = k - 1; i >= 0; i--)
{
if (less(temp, vector[i]))
break;
vector[i + 1] = vector[i];
}
vector[i + 1] = temp;
}
}