From 6e8e2112ba0e563e748c0e65de63a40ae9e3419d Mon Sep 17 00:00:00 2001
From: Christian Mazakas <christian.mazakas@gmail.com>
Date: Fri, 7 Oct 2022 14:51:40 -0700
Subject: [PATCH] Rearrange SFINAE to appease msvc-14.0 in erase() member
 function template

---
 include/boost/unordered/detail/foa.hpp | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/include/boost/unordered/detail/foa.hpp b/include/boost/unordered/detail/foa.hpp
index 0dbf230f..ea8aabcf 100644
--- a/include/boost/unordered/detail/foa.hpp
+++ b/include/boost/unordered/detail/foa.hpp
@@ -1097,13 +1097,11 @@ public:
     --size_;
   }
 
-  template<
-    typename Key,
-    typename std::enable_if<
-      !std::is_convertible<Key&&,iterator>::value&&
-      !std::is_convertible<Key&&,const_iterator>::value>::type* =nullptr
-  >
-  std::size_t erase(Key&& x)
+  template<typename Key>
+  auto erase(Key&& x) -> typename std::enable_if<
+    !boost::is_convertible<Key,iterator>::value&&
+    !boost::is_convertible<Key,const_iterator>::value, std::size_t>::type
+  erase(Key&& x)
   {
     auto it=find(x);
     if(it!=end()){