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os: make ReadAt comment clearer

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Fixes #2486.

R=golang-dev, hanwen
CC=golang-dev
https://golang.org/cl/5417064
This commit is contained in:
Russ Cox 2011-11-22 12:22:28 -05:00
parent 11e73b89ca
commit c69d6345da
1 changed files with 2 additions and 2 deletions
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4
src/pkg/os/file.go
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@ -70,8 +70,8 @@ func (file *File) Read(b []byte) (n int, err error) {
// ReadAt reads len(b) bytes from the File starting at byte offset off.
// It returns the number of bytes read and the error, if any.
// EOF is signaled by a zero count with err set to io.EOF.
// ReadAt always returns a non-nil error when n != len(b).
// ReadAt always returns a non-nil error when n < len(b).
// At end of file, that error is io.EOF.
func (file *File) ReadAt(b []byte, off int64) (n int, err error) {
if file == nil {
return 0, EINVAL