From 1ab8cc4c0f55deb4a917a0506782b8e5e6018c88 Mon Sep 17 00:00:00 2001
From: Christian Mazakas <christian.mazakas@gmail.com>
Date: Thu, 30 Dec 2021 11:29:21 -0800
Subject: [PATCH] Implement heterogeneous `erase()` for multiset

---
 include/boost/unordered/unordered_set.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/boost/unordered/unordered_set.hpp b/include/boost/unordered/unordered_set.hpp
index ecb12bda..4f691125 100644
--- a/include/boost/unordered/unordered_set.hpp
+++ b/include/boost/unordered/unordered_set.hpp
@@ -1016,6 +1016,16 @@ namespace boost {
 
       iterator erase(const_iterator);
       size_type erase(const key_type&);
+
+      template <class Key>
+      typename boost::enable_if_c<
+        detail::transparent_non_iterable<Key, unordered_multiset>::value,
+        size_type>::type
+      erase(const Key& k)
+      {
+        return table_.erase_key_equiv_impl(this->key_eq(), k);
+      }
+
       iterator erase(const_iterator, const_iterator);
       BOOST_UNORDERED_DEPRECATED("Use erase instead")
       void quick_erase(const_iterator it) { erase(it); }