unsafex

func UnsafeBytes ¶

func UnsafeBytes(s string) []byte

UnsafeBytes converts a string to a byte slice without copying the underlying data. It creates a new byte slice header pointing to the string's data memory address. WARNING: If the string data is allocated in read-only memory, modifying the returned byte slice will cause a panic.

func UnsafeString ¶

func UnsafeString(bs []byte) string

UnsafeString converts a byte slice to a string without copying the underlying data. It converts the byte slice header directly to a string header.

type SliceHeader struct {
	Data uintptr
	Len  int
	Cap  int
}

type StringHeader struct {
	Data uintptr
	Len  int
}

This works because the memory layouts are similar - the byte slice header can be directly cast to a string header (ignoring the Cap field).