From: Nick Porter <nick@portercomputing.co.uk>
Date: Fri, 15 Jan 2021 14:21:27 +0000 (+0000)
Subject: Add fr_pair_list_empty() to test for empty lists of fr_pair_ts (#3846)
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=87a504089a7f24988ecb1e8960da522c797b07c1;p=thirdparty%2Ffreeradius-server.git

Add fr_pair_list_empty() to test for empty lists of fr_pair_ts (#3846)

In anticipation of migration to dlists
---

diff --git a/src/lib/util/pair.h b/src/lib/util/pair.h
index a5f9f1490f5..aeba215f379 100644
--- a/src/lib/util/pair.h
+++ b/src/lib/util/pair.h
@@ -184,6 +184,15 @@ void		fr_pair_list_verify(char const *file, int line, TALLOC_CTX const *expected
  */
 #define	fr_pair_list_single_value(_list, _vp) (_list = &_vp)
 
+/**  Function to detect empty pair_list
+ *
+ * Returns true for empty lists.
+ */
+static inline bool fr_pair_list_empty(fr_pair_list_t const *list)
+{
+	return (!*list);
+}
+
 /* Allocation and management */
 fr_pair_t	*fr_pair_alloc_null(TALLOC_CTX *ctx);