From ccea3654945809932a7b85b365af11f91b5a1ded Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Thu, 15 Jan 2009 22:00:26 +0100
Subject: tag: added tag_is_defined()
tag_is_defined() checks whether there is any information in the tag
object.
---
src/tag.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/tag.h b/src/tag.h
index 2347801e3..0c525b24b 100644
--- a/src/tag.h
+++ b/src/tag.h
@@ -109,6 +109,15 @@ tag_is_empty(const struct tag *tag)
return tag->numOfItems == 0;
}
+/**
+ * Returns true if the tag contains any information.
+ */
+static inline bool
+tag_is_defined(const struct tag *tag)
+{
+ return !tag_is_empty(tag) || tag->time >= 0;
+}
+
/**
* Returns the first value of the specified tag type, or NULL if none
* is present in this tag object.
--
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