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os: remove a redundant branch in File.Read.

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All implementations of File.read ensure that n >= 0. This is usually via
fixCount, except for Windows console reads, which only ever add to n.

Change-Id: Ic019d6a2da5ef1ac68d2690c908deca4fcc6b4a4
Reviewed-on: https://go-review.googlesource.com/12624
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Aaron Jacobs 2015-07-24 14:21:11 +10:00 committed by Brad Fitzpatrick
parent 3c9fa388df
commit 019297a9aa
1 changed files with 0 additions and 3 deletions
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3
src/os/file.go
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@ -93,9 +93,6 @@ func (f *File) Read(b []byte) (n int, err error) {
return 0, ErrInvalid
}
n, e := f.read(b)
if n < 0 {
n = 0
}
if n == 0 && len(b) > 0 && e == nil {
return 0, io.EOF
}