Continuous recompilation clock
    ----
    
    Here is a somewhat unusual digital clock program.

    ----
    Instructions
    ----

    Compile the program, then test that it works:

    ./sykes2
    
    It should render the time on the screen.  But it renders the same time
    each time it is run - the time is compiled in!
    
    What use is it?  To see the clock running, you just need a little
    script to continually recompile and run the program:
    
    while true; do cc -o sykes2 sykes2.c; clear; ./sykes2; done
    
    I have provided this script in an info file for convenience.
    
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    Notes
    ----
    
    At 130 characters of C code (without the newline at the end), this
    should fit into the "1-liner" category.

    The clock numerals are rendered as an old fashioned 7 segment display.
    The encodings for which segments light for which number, and for where
    each segment appears on screen are hidden in the two strings.

    When reading the program, you may want to refer to a table of
    operator precedence - careful choices were made to keep the usage of
    brackets to a minimum, and to keep the character count as low as
    possible.
    
    One interesting bit of obfuscation - the null at the end of the second
    string actually forms part of the lookup table.

    Intel CC warns about the lack of a declaration for the argument to main.
    (Gcc does not notice this though, even with -Wall.)  But anyway it can
    easily be declared as int at the expense of 4 more characters.
    
    I'm not sure of the effects on a hard disk of rewriting the same file
    multiple times per second for a long time.  Run at your own risk!