: $ gcc-0 cmploop.c -o cmploop -pedantic -Wall -O0 -DEMPTY -Dblocksize=00 -Dcount=00000000 && time ./cmploop 00000000  real    0m0.000s user    0m0.000s sys     0m0.000s  $ gcc-0 cmploop.c -o cmploop -pedantic -Wall -O0 -DLOOP -Dblocksize=00 -Dcount=00000000 && time ./cmploop 00000000  real    0m0.000s user    0m0.000s sys     0m0.000s  $ gcc-0 cmploop.c -o cmploop -pedantic -Wall -O0 -DMEMCMP -Dblocksize=00 -Dcount=00000000 && time ./cmploop 00000000  real    0m0.000s user    0m0.000s sys     0m0.000s  I 