sys-file-reader: Avoid assert-fail for duplicate attribute names.

[pspp] / src / data / attributes.h

diff --git a/src/data/attributes.h b/src/data/attributes.h
index b0712fcc8f4a8ab6f5f5d2ec1a9662b80fe4ea5c..56d142e4c23ceb375e7c11e220fa4f34cde62346 100644 (file)
--- a/src/data/attributes.h
+++ b/src/data/attributes.h
@@ -53,6 +53,7 @@ void attrset_destroy (struct attrset *);
 size_t attrset_count (const struct attrset *);
 
 struct attribute *attrset_lookup (const struct attrset *, const char *);
+bool attrset_try_add (struct attrset *, struct attribute *);
 void attrset_add (struct attrset *, struct attribute *);
 void attrset_delete (struct attrset *, const char *);
 void attrset_clear (struct attrset *);