12 M_RDWR = M_READ|M_WRITE,
17 inline Mode operator|(Mode m, Mode n)
18 { return Mode(static_cast<int>(m)|static_cast<int>(n)); }
20 inline Mode operator&(Mode m, Mode n)
21 { return Mode(static_cast<int>(m)&static_cast<int>(n)); }
23 inline Mode operator~(Mode m)
24 { return Mode(~static_cast<int>(m)); }