/* * Returns the current line number that the stream is at. This number is based * on the newline separator being "\n" * * reader = Bzip2::Reader.new Bzip2.compress("a\nb") * reader.lineno # => 0 * reader.readline # => "a\n" * reader.lineno # => 1 * reader.readline # => "b" * reader.lineno # => 2 * @return [Integer] the current line number */ static VALUE bz_reader_lineno(VALUE obj) {