add missing const specifier on TokenWriter::tagset()

f7843902 · ilor · f7cb9230 · f7843902
Commit f7843902 authored 13 years ago by ilor
--- a/libcorpus2/io/writer.h
+++ b/libcorpus2/io/writer.h
@@ -54,7 +54,7 @@ public:
 		return os_;
 	}

-	const Tagset& tagset() {
+	const Tagset& tagset() const {
 		return tagset_;
 	}