import Base.print


function print_newline(io :: IO, indent = 0, n_lines = 1)

    for i in (1 : n_lines)
        print(io, "\n")
    end

    for i in (1 : indent)
        print(io, " ")
    end
end

starpu_indent_size = 4




function rand_char()

    r = rand(UInt) % 62

    if (0 <= r < 10)
        return '0' + r
    elseif (10 <= r < 36)
        return 'a' + (r - 10)
    else
        return 'A' + (r - 36)
    end
end

function rand_string(size = 8)

    output = ""

    for i in (1 : size)
        output *= string(rand_char())
    end

    return output
end




function system(cmd :: String)
    ccall((:system, "libc"), Cint, (Cstring,), cmd)
end