n, err := f.Write(d[:length]) ?
Where length is the amount of data you want to write.
On Thu, Jan 18, 2018 at 3:04 PM Peng Yu <pengyu...@gmail.com> wrote:
> Hi,
>
> The following example shows how to write a byte slice to a buffer. But
> what if I want only write a length shorter (say 2 instead of 5) than
> the size of the slice. Is there a function that allows users to
> specify the length to write? Thanks.
>
> $ cat main.go
> #!/usr/bin/env gorun
> // vim: set noexpandtab tabstop=2:
> package main
>
> import (
> "os"
> "bufio"
> "fmt"
> )
>
> func main() {
> f := bufio.NewWriter(os.Stdout)
> d := []byte{'s', 'o', 'm', 'e', '\n'}
> n, err := f.Write(d)
> f.Flush()
> fmt.Printf("wrote %d bytes, error %q\n", n, err)
> }
>
> --
> Regards,
> Peng
>
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