From 85ef592fb1eab68283b12607701e4fb9b9014630 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 23 Nov 2021 10:57:06 +0200
Subject: [PATCH] Add a flipped operator() to MemberCompare so
 upper_bound_member can work

---
 source/core/algorithm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/source/core/algorithm.h b/source/core/algorithm.h
index 268bf7b..51c2369 100644
--- a/source/core/algorithm.h
+++ b/source/core/algorithm.h
@@ -132,6 +132,7 @@ struct MemberCompare
 	MemberCompare(T C::*p): mem_ptr(p) { }
 
 	bool operator()(const C &obj, const T &v) { return obj.*mem_ptr<v; }
+	bool operator()(const T &v, const C &obj) { return v<obj.*mem_ptr; }
 	bool operator()(const C &obj1, const C &obj2) { return obj1.*mem_ptr<obj2.*mem_ptr; }
 };
 
-- 
2.43.0