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path: root/src/compress/bzip2/bzip2.go
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Diffstat (limited to 'src/compress/bzip2/bzip2.go')
-rw-r--r--src/compress/bzip2/bzip2.go2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/compress/bzip2/bzip2.go b/src/compress/bzip2/bzip2.go
index d318116a1..15575d220 100644
--- a/src/compress/bzip2/bzip2.go
+++ b/src/compress/bzip2/bzip2.go
@@ -42,6 +42,8 @@ type reader struct {
}
// NewReader returns an io.Reader which decompresses bzip2 data from r.
+// If r does not also implement io.ByteReader,
+// the decompressor may read more data than necessary from r.
func NewReader(r io.Reader) io.Reader {
bz2 := new(reader)
bz2.br = newBitReader(r)