import Std::Io;
import Std::Array;
import Std::Slice;

func Main() -> int {
    // Test Array operator_index_get/set
    let arr: Array<int> = Array_New<int>(10);
    Array_Push<int>(&arr, 10);
    Array_Push<int>(&arr, 20);
    Array_Push<int>(&arr, 30);

    // Use [] syntax (operator_index_get)
    if arr[0] != 10 { return 1; }
    if arr[1] != 20 { return 2; }
    if arr[2] != 30 { return 3; }

    // Use [] syntax (operator_index_set)
    arr[1] = 99;
    if arr[1] != 99 { return 4; }

    // Test Slice operator_index_get/set
    let s: Slice<int> = Slice_FromArray<int>(&arr);

    if s[0] != 10 { return 5; }
    if s[1] != 99 { return 6; }
    if s[2] != 30 { return 7; }

    s[2] = 42;
    if s[2] != 42 { return 8; }

    PrintInt(s[0]);
    PrintLine("");
    PrintInt(Slice_Len<int>(&s));
    PrintLine("");
    return 0;
}