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Diffstat (limited to 'libgo/go/bytes/buffer.go')
| -rw-r--r-- | libgo/go/bytes/buffer.go | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libgo/go/bytes/buffer.go b/libgo/go/bytes/buffer.go index f19a4cf..549b077 100644 --- a/libgo/go/bytes/buffer.go +++ b/libgo/go/bytes/buffer.go @@ -275,7 +275,8 @@ func (b *Buffer) WriteByte(c byte) error { // included to match bufio.Writer's WriteRune. The buffer is grown as needed; // if it becomes too large, WriteRune will panic with ErrTooLarge. func (b *Buffer) WriteRune(r rune) (n int, err error) { - if r < utf8.RuneSelf { + // Compare as uint32 to correctly handle negative runes. + if uint32(r) < utf8.RuneSelf { b.WriteByte(byte(r)) return 1, nil } |