I have a long chunk of memory, say, 256 KiB or longer. I want to count the number of 1 bits in this entire chunk, or in other words: Add up the "population count" values for all bytes. I know that...

I tried to run the following program in my computer (Fedora 17 32bit). How can I enable my system to support the popcnt instruction for fast population count? #include <stdio.h> #include &lt...