Implement initializer_list assignment

include/boost/unordered/concurrent_flat_map.hpp

@@ -267,6 +267,12 @@ namespace boost {
         return *this;
       }
 
+      concurrent_flat_map& operator=(std::initializer_list<value_type> ilist)
+      {
+        table_ = ilist;
+        return *this;
+      }
+
       /// Capacity
       ///
 

include/boost/unordered/detail/foa/concurrent_table.hpp

@@ -410,6 +410,18 @@ public:
     return *this;
   }
 
+  concurrent_table& operator=(std::initializer_list<value_type> il) {
+    auto lck=exclusive_access();
+    super::clear();
+    if (super::capacity()<il.size()) {
+      super::reserve(il.size());
+    }
+    for (auto const& v : il) {
+      this->unprotected_emplace(v);
+    }
+    return *this;
+  }
+
   allocator_type get_allocator()const noexcept
   {
     auto lck=shared_access();