diff options
Diffstat (limited to 'libgo/go/bufio/bufio.go')
| -rw-r--r-- | libgo/go/bufio/bufio.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libgo/go/bufio/bufio.go b/libgo/go/bufio/bufio.go index ad9c9f5..72545a7 100644 --- a/libgo/go/bufio/bufio.go +++ b/libgo/go/bufio/bufio.go @@ -462,6 +462,8 @@ func (b *Reader) ReadString(delim byte) (string, error) { // WriteTo implements io.WriterTo. // This may make multiple calls to the Read method of the underlying Reader. +// If the underlying reader supports the WriteTo method, +// this calls the underlying WriteTo without buffering. func (b *Reader) WriteTo(w io.Writer) (n int64, err error) { n, err = b.writeBuf(w) if err != nil { @@ -684,7 +686,9 @@ func (b *Writer) WriteString(s string) (int, error) { return nn, nil } -// ReadFrom implements io.ReaderFrom. +// ReadFrom implements io.ReaderFrom. If the underlying writer +// supports the ReadFrom method, and b has no buffered data yet, +// this calls the underlying ReadFrom without buffering. func (b *Writer) ReadFrom(r io.Reader) (n int64, err error) { if b.Buffered() == 0 { if w, ok := b.wr.(io.ReaderFrom); ok { |