From ba372197fbda68d72857585008061ca5f781f805 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Sun, 19 Jan 2014 11:23:02 +0100
Subject: db/simple: make borrowed_song_count "mutable"

Simpler to use than const_cast.
---
 src/db/SimpleDatabasePlugin.cxx | 4 ++--
 src/db/SimpleDatabasePlugin.hxx | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/db/SimpleDatabasePlugin.cxx b/src/db/SimpleDatabasePlugin.cxx
index 9b17ada29..c33db3831 100644
--- a/src/db/SimpleDatabasePlugin.cxx
+++ b/src/db/SimpleDatabasePlugin.cxx
@@ -206,7 +206,7 @@ SimpleDatabase::GetSong(const char *uri, Error &error) const
 			     "No such song: %s", uri);
 #ifndef NDEBUG
 	else
-		++const_cast<unsigned &>(borrowed_song_count);
+		++borrowed_song_count;
 #endif
 
 	return song;
@@ -219,7 +219,7 @@ SimpleDatabase::ReturnSong(gcc_unused Song *song) const
 
 #ifndef NDEBUG
 	assert(borrowed_song_count > 0);
-	--const_cast<unsigned &>(borrowed_song_count);
+	--borrowed_song_count;
 #endif
 }
 
diff --git a/src/db/SimpleDatabasePlugin.hxx b/src/db/SimpleDatabasePlugin.hxx
index 5145c0bc8..d51174194 100644
--- a/src/db/SimpleDatabasePlugin.hxx
+++ b/src/db/SimpleDatabasePlugin.hxx
@@ -37,7 +37,7 @@ class SimpleDatabase : public Database {
 	time_t mtime;
 
 #ifndef NDEBUG
-	unsigned borrowed_song_count;
+	mutable unsigned borrowed_song_count;
 #endif
 
 	SimpleDatabase()
-- 
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