/// -DUSE_POPCNT | Add runtime support for use of popcnt asm-instruction. Works
/// | only in 64-bit mode. For compiling requires hardware with
/// | popcnt support.
-///
-/// -DOLD_LOCKS | Under Windows are used the fast Slim Reader/Writer (SRW)
-/// | Locks and Condition Variables: these are not supported by
-/// | Windows XP and older, to compile for those platforms you
-/// | should enable OLD_LOCKS.
#include <climits>
#include <cstdlib>