[extern] memcmp = fn [cc(c)] (a: &u8, b: &u8, byte_count: u64) s32;

join = fn (slice: []u8, parts: [][]u8) void
{
    >destination_i: u64 = 0;

    for (part: parts)
    {
        >source_i: u64 = 0;

        while (source_i < part.length)
        {
            slice[destination_i] = part[source_i];
            destination_i += 1;
            source_i += 1;
        }
    }
}

[export] main = fn [cc(c)] () s32
{
    >a = "a";
    >b = "b";
    >ab = "ab";
    >buffer: [2]u8 = undefined;
    >buffer_slice = buffer[..];
    join(buffer_slice, [ a, b ][..]);

    >result = memcmp(buffer_slice.pointer, ab.pointer, ab.length);
    return result;
}