From bd2e46c8255fad4e75e589b3286ead560e910b39 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Wed, 3 Oct 2012 05:27:36 +0000
Subject: libgo: Update to Go 1.0.3.

From-SVN: r192025
---
 libgo/go/io/io.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'libgo/go/io')

diff --git a/libgo/go/io/io.go b/libgo/go/io/io.go
index 54bf159..5187eff 100644
--- a/libgo/go/io/io.go
+++ b/libgo/go/io/io.go
@@ -130,11 +130,23 @@ type ReadWriteSeeker interface {
 }
 
 // ReaderFrom is the interface that wraps the ReadFrom method.
+//
+// ReadFrom reads data from r until EOF or error.
+// The return value n is the number of bytes read.
+// Any error except io.EOF encountered during the read is also returned.
+//
+// The Copy function uses ReaderFrom if available.
 type ReaderFrom interface {
 	ReadFrom(r Reader) (n int64, err error)
 }
 
 // WriterTo is the interface that wraps the WriteTo method.
+//
+// WriteTo writes data to w until there's no more data to write or
+// when an error occurs. The return value n is the number of bytes
+// written. Any error encountered during the write is also returned.
+//
+// The Copy function uses WriterTo if available.
 type WriterTo interface {
 	WriteTo(w Writer) (n int64, err error)
 }
-- 
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