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#pragma warning(disable:4996)
#include <windows.h>
...
    );
    return 0;
}

C:\test>for %t in (1,2,4,16,63,255) do @interlock %t 10000000
   1 threads x   10000000 iterations of normal increment non-shared to
+ok   0.269178904 seconds
...
1023 threads x    1000000 iterations of normal increment non-shared to
+ok 7.115383938 seconds
1023 threads x    1000000 iterations of    interlockedIncrement16() to
+ok 127.386793294 seconds
1023 threads x    1000000 iterations of normal increment shared     to
+ok 112.850957873 seconds