q(
Benchmark: timing 100000 iterations of C-style, push...
   C-style:  2 wallclock secs ( 3.20 usr +  0.00 sys =  3.20 CPU) @ 31279.32/s (n=100000)
      push:  3 wallclock secs ( 2.63 usr +  0.09 sys =  2.72 CPU) @ 36724.20/s (n=100000)