From 3c92c69bc7b0b216051d10a02536e566a27dea00 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Thu, 26 Sep 2013 18:11:00 +0200
Subject: Tag: add "pure" attributes

---
 src/tag/Tag.hxx | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/tag')

diff --git a/src/tag/Tag.hxx b/src/tag/Tag.hxx
index 731d7cd58..395780cde 100644
--- a/src/tag/Tag.hxx
+++ b/src/tag/Tag.hxx
@@ -150,6 +150,7 @@ struct Tag {
 	 * Checks whether the tag contains one or more items with
 	 * the specified type.
 	 */
+	gcc_pure
 	bool HasType(tag_type type) const;
 
 private:
@@ -160,6 +161,7 @@ private:
  * Parse the string, and convert it into a #tag_type.  Returns
  * #TAG_NUM_OF_ITEM_TYPES if the string could not be recognized.
  */
+gcc_pure
 enum tag_type
 tag_name_parse(const char *name);
 
@@ -169,6 +171,7 @@ tag_name_parse(const char *name);
  *
  * Case does not matter.
  */
+gcc_pure
 enum tag_type
 tag_name_parse_i(const char *name);
 
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