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root@HK:~/document/svn/BLELock/ARM/source# gcc test.c
root@HK:~/document/svn/BLELock/ARM/source# ./a.out
8 9223372036854775807
root@HK:~/document/svn/BLELock/ARM/source# cat test.c
#include <stdio.h>
#include <limits.h>
void main()
{
printf("%ld %ld\n", sizeof(long), LONG_MAX);
}