containerd/vendor/github.com/stevvooe/continuity/devices_darwin.go

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package continuity
// from /usr/include/sys/types.h
func getmajor(dev int32) uint64 {
return (uint64(dev) >> 24) & 0xff
}
func getminor(dev int32) uint64 {
return uint64(dev) & 0xffffff
}
func makedev(major int, minor int) int {
return ((major << 24) | minor)
}