exbytes

Documentation

Index

• Variables
• type Writer
  • func (w *Writer) String() string
  • func (w *Writer) Write(b []byte) (n int, err error)
  • func (w *Writer) WriteByte(r byte) error
  • func (w *Writer) WriteString(s string) (n int, err error)

Examples

• Writer

Variables

var ErrWriterBufferFull = errors.New("exbytes.Writer: buffer full")

Types

type Writer

type Writer []byte

Writer is a simple byte writer that does not allow extending the buffer.

Writes always go after the current len() and will fail if the slice capacity is too low.

The correct way to use this is to create a slice with sufficient capacity and zero length:

x := make([]byte, 0, 11)
w := (*Writer)(&x)
w.Write([]byte("hello"))
w.WriteByte(' ')
w.WriteString("world")
fmt.Println(string(x)) // "hello world"

Example

package main

import (
	"fmt"

	"go.mau.fi/util/exbytes"
)

func main() {
	x := make([]byte, 0, 11)
	w := (*exbytes.Writer)(&x)
	w.Write([]byte("hello"))
	w.WriteByte(' ')
	w.WriteString("world")
	fmt.Println(string(x))
}

Output:

hello world

func (*Writer) String

func (w *Writer) String() string

func (*Writer) Write

func (w *Writer) Write(b []byte) (n int, err error)

func (*Writer) WriteByte

func (w *Writer) WriteByte(r byte) error

func (*Writer) WriteString

func (w *Writer) WriteString(s string) (n int, err error)