From dab7140405a50a57435ed8dfec0a0feadb26297c Mon Sep 17 00:00:00 2001
From: BlackMATov <blackmatov@gmail.com>
Date: Tue, 7 May 2019 01:12:34 +0700
Subject: [PATCH] add support for containers without ctor with allocator
 argument

---
 headers/flat_hpp/flat_map.hpp | 4 +++-
 headers/flat_hpp/flat_set.hpp | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/headers/flat_hpp/flat_map.hpp b/headers/flat_hpp/flat_map.hpp
index e33244a..cca641a 100644
--- a/headers/flat_hpp/flat_map.hpp
+++ b/headers/flat_hpp/flat_map.hpp
@@ -87,12 +87,14 @@ namespace flat_hpp
             std::is_same<typename container_type::allocator_type, allocator_type>::value,
             "Container::allocator_type must be same type as allocator_type");
     public:
+        flat_map() = default;
+
         explicit flat_map(
             const Allocator& a)
         : data_(a) {}
 
         explicit flat_map(
-            const Compare& c = Compare(),
+            const Compare& c,
             const Allocator& a = Allocator())
         : data_(a)
         , compare_(c) {}
diff --git a/headers/flat_hpp/flat_set.hpp b/headers/flat_hpp/flat_set.hpp
index 5feda61..ffec69e 100644
--- a/headers/flat_hpp/flat_set.hpp
+++ b/headers/flat_hpp/flat_set.hpp
@@ -56,12 +56,14 @@ namespace flat_hpp
             std::is_same<typename container_type::allocator_type, allocator_type>::value,
             "Container::allocator_type must be same type as allocator_type");
     public:
+        flat_set() = default;
+
         explicit flat_set(
             const Allocator& a)
         : data_(a) {}
 
         explicit flat_set(
-            const Compare& c = Compare(),
+            const Compare& c,
             const Allocator& a = Allocator())
         : data_(a)
         , compare_(c) {}