/usr/include/ns3/empty.h is in libns3-dev 3.13+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | #ifndef EMPTY_H
#define EMPTY_H
namespace ns3 {
/**
* \brief make Callback use a separate empty type
*/
class empty {};
}
#endif /* EMPTY_H */
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