data structure of the map or channel.
</li>
</ul>

<p>
An interface value may be self-contained or contain references to underlying data
depending on the interface's <a href="#Variables">dynamic type</a>.
The predeclared identifier <code>nil</code> is the zero value for types whose values
can contain references.
</p>

<p>
When multiple values share underlying data, changing one value may change another.

pkg syscall (darwin-arm64), type Log2phys_t struct, Devoffset int64
pkg syscall (darwin-arm64), type Log2phys_t struct, Flags uint32
pkg syscall (darwin-arm64), type Msghdr struct
pkg syscall (darwin-arm64), type Msghdr struct, Control *uint8
pkg syscall (darwin-arm64), type Msghdr struct, Controllen uint32
pkg syscall (darwin-arm64), type Msghdr struct, Flags int32
pkg syscall (darwin-arm64), type Msghdr struct, Iov *Iovec

pkg syscall (netbsd-arm64-cgo), type Mclpool [0]uint8
pkg syscall (netbsd-arm64-cgo), type Msghdr struct
pkg syscall (netbsd-arm64-cgo), type Msghdr struct, Controllen uint32
pkg syscall (netbsd-arm64-cgo), type Msghdr struct, Control *uint8
pkg syscall (netbsd-arm64-cgo), type Msghdr struct, Flags int32
pkg syscall (netbsd-arm64-cgo), type Msghdr struct, Iov *Iovec
pkg syscall (netbsd-arm64-cgo), type Msghdr struct, Iovlen int32