From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 23 Nov 2021 08:57:06 +0000 (+0200)
Subject: Add a flipped operator() to MemberCompare so upper_bound_member can work
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=85ef592fb1eab68283b12607701e4fb9b9014630;p=libs%2Fcore.git

Add a flipped operator() to MemberCompare so upper_bound_member can work
---

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; }
 };