Benchmark: timing 10000000 iterations of const, literal, normal, ro, ro_simple, rotie, tglob...
     const:  0 wallclock secs ( 0.34 usr +  0.00 sys =  0.34 CPU) @ 29411764.71/s (n=10000000)
            (warning: too few iterations for a reliable count)
   literal:  0 wallclock secs ( 0.38 usr +  0.00 sys =  0.38 CPU) @ 26315789.47/s (n=10000000)
            (warning: too few iterations for a reliable count)
    normal:  0 wallclock secs ( 0.49 usr +  0.00 sys =  0.49 CPU) @ 20408163.27/s (n=10000000)
        <b>ro:  1 wallclock secs ( 0.42 usr +  0.00 sys =  0.42 CPU) @ 23809523.81/s (n=10000000)</b>
 ro_simple:  2 wallclock secs ( 0.45 usr +  0.00 sys =  0.45 CPU) @ 22222222.22/s (n=10000000)
     rotie:  1 wallclock secs ( 0.76 usr +  0.00 sys =  0.76 CPU) @ 13157894.74/s (n=10000000)
     tglob:  0 wallclock secs ( 0.59 usr +  0.00 sys =  0.59 CPU) @ 16949152.54/s (n=10000000)