The built-in function <code>complex</code> constructs a complex
value from a floating-point real and imaginary part, while
<code>real</code> and <code>imag</code>
extract the real and imaginary parts of a complex value.
</p>

<pre class="grammar">
complex(realPart, imaginaryPart floatT) complexT
real(complexT) floatT
imag(complexT) floatT
</pre>

<p>

pkg io, func NopCloser(Reader) ReadCloser
pkg io, func ReadAll(Reader) ([]uint8, error)
pkg io, type ReadSeekCloser interface { Close, Read, Seek }
pkg io, type ReadSeekCloser interface, Close() error
pkg io, type ReadSeekCloser interface, Read([]uint8) (int, error)
pkg io, type ReadSeekCloser interface, Seek(int64, int) (int64, error)
pkg io, var Discard Writer
pkg io/fs, const ModeAppend = 1073741824

pkg syscall (netbsd-arm64-cgo), func RawSyscall(uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)
pkg syscall (netbsd-arm64-cgo), func ReadDirent(int, []uint8) (int, error)
pkg syscall (netbsd-arm64-cgo), func Read(int, []uint8) (int, error)
pkg syscall (netbsd-arm64-cgo), func Recvfrom(int, []uint8, int) (int, Sockaddr, error)
pkg syscall (netbsd-arm64-cgo), func Recvmsg(int, []uint8, []uint8, int) (int, int, int, Sockaddr, error)