From 15b2a4862eb1d7772caf3b47bf38656808229af5 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Sun, 2 Sep 2018 07:57:36 +0200
Subject: [PATCH] protocol/RangeArg: add Contains()

---
 src/db/DatabasePrint.cxx  | 4 +---
 src/protocol/RangeArg.hxx | 4 ++++
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/db/DatabasePrint.cxx b/src/db/DatabasePrint.cxx
index dd981bfc4..2d923c618 100644
--- a/src/db/DatabasePrint.cxx
+++ b/src/db/DatabasePrint.cxx
@@ -202,9 +202,7 @@ db_selection_print(Response &r, Partition &partition,
 	if (sort == TAG_NUM_OF_ITEM_TYPES) {
 		if (!window.IsAll())
 			s = [s, window, &i](const LightSong &song){
-				const bool in_window = i >= window.start && i < window.end;
-				++i;
-				if (in_window)
+				if (window.Contains(i++))
 					s(song);
 			};
 
diff --git a/src/protocol/RangeArg.hxx b/src/protocol/RangeArg.hxx
index 796c25959..9b1d720ac 100644
--- a/src/protocol/RangeArg.hxx
+++ b/src/protocol/RangeArg.hxx
@@ -42,6 +42,10 @@ struct RangeArg {
 	constexpr bool IsAll() const noexcept {
 		return *this == All();
 	}
+
+	constexpr bool Contains(unsigned i) const noexcept {
+		return i >= start && i < end;
+	}
 };
 
 #endif