From d575b72c16d217353795594032196a5857907de2 Mon Sep 17 00:00:00 2001
From: Jacques Lucke <jacques@blender.org>
Date: Tue, 28 Apr 2020 16:35:49 +0200
Subject: BLI: add Set.is_empty method

---
 source/blender/blenlib/BLI_set.hh | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'source')

diff --git a/source/blender/blenlib/BLI_set.hh b/source/blender/blenlib/BLI_set.hh
index b09dd910007..f9d4bbfaed4 100644
--- a/source/blender/blenlib/BLI_set.hh
+++ b/source/blender/blenlib/BLI_set.hh
@@ -276,6 +276,14 @@ class Set {
     return m_array.slots_set();
   }
 
+  /**
+   * Return true if this set contains no elements.
+   */
+  bool is_empty() const
+  {
+    return this->size() == 0;
+  }
+
   /**
    * Returns true when there is at least one element that is in both sets.
    * Otherwise false.
-- 
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