bytes

func Copy ¶

func Copy(b []byte) []byte

Copy returns a copy of byte slice in a new pointer.

func Equal ¶

func Equal(a, b []byte) bool

Equal reports whether a and b are the same length and contain the same bytes. A nil argument is equivalent to an empty slice.

func Extend ¶

func Extend(b []byte, needLen int) []byte

Extend extends b to needLen bytes.

func Prepend ¶

func Prepend(dst []byte, src ...byte) []byte

Prepend prepends bytes into a given byte slice.

func PrependString ¶

func PrependString(dst []byte, src string) []byte

PrependString prepends a string into a given byte slice.

func Rand ¶

func Rand(dst []byte) []byte

Rand returns dst with a cryptographically secure string random bytes.

NOTE: Make sure that dst has the length you need.