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authorMax Kellermann <max@duempel.org>2009-01-15 22:00:26 +0100
committerMax Kellermann <max@duempel.org>2009-01-15 22:00:26 +0100
commitccea3654945809932a7b85b365af11f91b5a1ded (patch)
treefd38be4eef86e6a703359655849fcbd181ee6e99 /src
parent15435b09affcd362cc047c54f6a3b052aa965889 (diff)
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tag: added tag_is_defined()
tag_is_defined() checks whether there is any information in the tag object.
Diffstat (limited to '')
-rw-r--r--src/tag.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/tag.h b/src/tag.h
index 2347801e3..0c525b24b 100644
--- a/src/tag.h
+++ b/src/tag.h
@@ -110,6 +110,15 @@ tag_is_empty(const struct tag *tag)
}
/**
+ * 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.
*/