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Diffstat (limited to 'digital/ucoolib/ucoolib/intf/stream.hh')
-rw-r--r--digital/ucoolib/ucoolib/intf/stream.hh2
1 files changed, 2 insertions, 0 deletions
diff --git a/digital/ucoolib/ucoolib/intf/stream.hh b/digital/ucoolib/ucoolib/intf/stream.hh
index c6912141..a9274c68 100644
--- a/digital/ucoolib/ucoolib/intf/stream.hh
+++ b/digital/ucoolib/ucoolib/intf/stream.hh
@@ -50,6 +50,8 @@ class Stream
int getc ();
/// Shortcut to write one character. Return -1 on error.
int putc (int c);
+ /// Return the number of available bytes to be read.
+ virtual int poll () = 0;
protected:
/// Default constructor.
Stream ();