global array, agg

probe begin
{
    #
    # Array section
    #
    printf("\nArrays:\n");

    # Add elements to the array, but in an unsorted order
    array[9] = 18;
    array[1] = 2
    array[8] = 16
    array[2] = 4
    array[7] = 14
    array[3] = 6
    array[6] = 12;
    array[5] = 10;
    array[4] = 8;
    array[10] = 20;

    # Print the unsorted array
    printf("unsorted:\n");
    foreach (key in array)
	printf("key %d, value %d\n", key, array[key]);

    # Print the first 5 unsorted array items
    printf("\nunsorted limit 5:\n");
    i = 0
    foreach (key in array limit 5)
    {
	printf("key %d, value %d\n", key, array[key]);
	i++;
    }
    printf("loop had %d iterations\n", i);

    # Print the first 5 sorted array items
    printf("\nsorted limit 5:\n");
    i = 0
    foreach (key in array+ limit 5)
    {
	printf("key %d, value %d\n", key, array[key]);
	i++;
    }
    printf("loop had %d iterations\n", i);

    # Use a variable reference to limit the loop iteration
    x = 3
    printf("\nsorted limit x (%d):\n", x);
    i = 0
    foreach (key in array+ limit x)
    {
	printf("key %d, value %d\n", key, array[key])
	i++;
    }
    printf("loop had %d iterations\n", i);

    # Use a expression containing a variable reference to limit the
    # loop iteration
    printf("\nsorted limit x * 2 (%d):\n", (x * 2));
    i = 0
    foreach (key in array+ limit x * 2)
    {
	printf("key %d, value %d\n", key, array[key])
	i++;
    }
    printf("loop had %d iterations\n", i);

    # Ensure the expression is only evaluated once
    printf("\nsorted limit ++x:\n");
    i = 0
    foreach (key in array+ limit ++x)
    {
	printf("key %d, value %d\n", key, array[key])
	i++;
    }
    printf("loop had %d iterations\n", i);
    printf("x ended up as %d\n", x);

    # Ensure the expression is only evaluated once
    printf("\nsorted limit x++:\n");
    i = 0
    foreach (key in array+ limit x++)
    {
	printf("key %d, value %d\n", key, array[key])
	i++;
    }
    printf("loop had %d iterations\n", i);
    printf("x ended up as %d\n", x);

    #
    # Aggregate section
    #
    printf("\nAggregates:\n");

    # Add items to the aggregate
    foreach (key in array)
    {
	agg <<< array[key]
	agg <<< array[key] * 2
	agg <<< array[key] * 3
	agg <<< array[key] * 4
	agg <<< array[key] * 5
	agg <<< array[key] * 6
	agg <<< array[key] * 7
	agg <<< array[key] * 8
	agg <<< array[key] * 9
	agg <<< array[key] * 10
	agg <<< array[key] * 11
	agg <<< array[key] * 12
	agg <<< array[key] * 12
	agg <<< array[key] * 13
	agg <<< array[key] * 14
	agg <<< array[key] * 15
    }

    # Find the total number of aggregate entries
    i = 0
    foreach (bucket in @hist_log(agg))
	i++;
    printf("%d total aggregate entries\n", i);

    # Print the 1st 5 aggregate entries
    printf("\naggregate limit 5:\n");
    i = 0
    foreach (bucket in @hist_log(agg) limit 5)
    {
	printf("bucket %d: %d\n", bucket, @hist_log(agg)[bucket]);
	i++;
    }
    printf("loop had %d iterations\n", i);

    printf("\nDone.\n");
    exit()
}