diff --git a/src/Character.cpp b/src/Character.cpp
index a925c8b563..82146c5b69 100644
--- a/src/Character.cpp
+++ b/src/Character.cpp
@@ -5,10 +5,9 @@
 #include "RageTextureID.h"
 #include "ActorUtil.h"
 
-Character::Character()
-{
-	m_iPreloadRefcount = 0;
-}
+Character::Character(): m_sCharDir(""), m_sCharacterID(""),
+	m_sDisplayName(""), m_sCardPath(""), m_sIconPath(""),
+	m_bUsableInRave(false), m_iPreloadRefcount(0) {}
 
 bool Character::Load( RString sCharDir )
 {
diff --git a/src/LocalizedString.h b/src/LocalizedString.h
index 1e5c7256e8..9e6de64dd3 100644
--- a/src/LocalizedString.h
+++ b/src/LocalizedString.h
@@ -25,6 +25,8 @@ private:
 	void CreateImpl();
 	RString m_sGroup, m_sName;
 	ILocalizedStringImpl *m_pImpl;
+	// Swallow up warnings. If they must be used, define them.
+	LocalizedString& operator=(const LocalizedString& rhs);
 };
 
 #endif
diff --git a/src/RageFile.h b/src/RageFile.h
index 700f4de36f..0db14ca949 100644
--- a/src/RageFile.h
+++ b/src/RageFile.h
@@ -6,8 +6,11 @@
 #include "RageFileBasic.h"
 struct lua_State;
 
-/* This is the high-level interface, which interfaces with RageFileObj implementations
- * and RageFileManager. */
+/**
+ * @brief High-level file access.
+ *
+ * This is the high-level interface, which interfaces with RageFileObj 
+ * implementations and RageFileManager. */
 class RageFile: public RageFileBasic
 {
 public:
@@ -81,6 +84,9 @@ private:
 	RString	m_Path;
 	RString	m_sError;
 	int		m_Mode;
+	
+	// Swallow up warnings. If they must be used, define them.
+	RageFile& operator=(const RageFile& rhs);
 };
 
 /** @brief Convenience wrappers for reading binary files. */
diff --git a/src/RageFileBasic.h b/src/RageFileBasic.h
index 8e42cb7c01..dfefaec812 100644
--- a/src/RageFileBasic.h
+++ b/src/RageFileBasic.h
@@ -152,6 +152,9 @@ private:
 	 * file, and no seeking is performed. */
 	bool m_bCRC32Enabled;
 	uint32_t m_iCRC32;
+	
+	// Swallow up warnings. If they must be used, define them.
+	RageFileObj& operator=(const RageFileObj& rhs);
 };
 
 #endif
diff --git a/src/RageSound.cpp b/src/RageSound.cpp
index 71ec55518b..836082b904 100644
--- a/src/RageSound.cpp
+++ b/src/RageSound.cpp
@@ -44,11 +44,8 @@ RageSoundParams::RageSoundParams():
 	m_fPitch(1.0f), m_fSpeed(1.0f), m_StartTime( RageZeroTimer ),
 	StopMode(M_AUTO), m_bIsCriticalSound(false) {}
 
-RageSoundLoadParams::RageSoundLoadParams()
-{
-	m_bSupportRateChanging = false;
-	m_bSupportPan = false;
-}
+RageSoundLoadParams::RageSoundLoadParams():
+	m_bSupportRateChanging(false), m_bSupportPan(false) {}
 
 RageSound::RageSound():
 	m_Mutex( "RageSound" ), m_pSource(NULL), m_iStreamFrame(0),
diff --git a/src/RageSoundManager.h b/src/RageSoundManager.h
index 37525356ab..e558eb32d2 100644
--- a/src/RageSoundManager.h
+++ b/src/RageSoundManager.h
@@ -53,6 +53,9 @@ private:
 	/* Prefs: */
 	float m_fMixVolume;
 	float m_fVolumeOfNonCriticalSounds;
+	// Swallow up warnings. If they must be used, define them.
+	RageSoundManager& operator=(const RageSoundManager& rhs);
+	RageSoundManager(const RageSoundManager& rhs);
 };
 
 extern RageSoundManager *SOUNDMAN;
diff --git a/src/RageSoundReader_PitchChange.h b/src/RageSoundReader_PitchChange.h
index 454ec12102..c7168f85ce 100644
--- a/src/RageSoundReader_PitchChange.h
+++ b/src/RageSoundReader_PitchChange.h
@@ -29,6 +29,8 @@ private:
 	float m_fPitchRatio;
 	float m_fLastSetSpeedRatio;
 	float m_fLastSetPitchRatio;
+	// Swallow up warnings. If they must be used, define them.
+	RageSoundReader_PitchChange& operator=(const RageSoundReader_PitchChange& rhs);
 };
 
 #endif
diff --git a/src/RageSoundReader_ThreadedBuffer.h b/src/RageSoundReader_ThreadedBuffer.h
index f13069251d..edb5295c5d 100644
--- a/src/RageSoundReader_ThreadedBuffer.h
+++ b/src/RageSoundReader_ThreadedBuffer.h
@@ -53,7 +53,8 @@ private:
 		int iFramesBuffered;
 		int iPositionOfFirstFrame;
 		float fRate;
-		Mapping() { iFramesBuffered = iPositionOfFirstFrame = 0; fRate = 1.0f; }
+		Mapping(): iFramesBuffered(0), iPositionOfFirstFrame(0),
+			fRate(1.0f) {}
 	};
 	list<Mapping> m_StreamPosition;
 
diff --git a/src/RageThreads.cpp b/src/RageThreads.cpp
index 0d6e1044a0..f806c6867b 100644
--- a/src/RageThreads.cpp
+++ b/src/RageThreads.cpp
@@ -65,7 +65,8 @@ struct ThreadSlot
 	int m_iCurCheckpoint, m_iNumCheckpoints;
 	const char *GetFormattedCheckpoint( int lineno );
 
-	ThreadSlot() { Init(); }
+	ThreadSlot(): m_bUsed(false), m_iID(GetInvalidThreadId()),
+		m_pImpl(NULL), m_iCurCheckpoint(0), m_iNumCheckpoints(0) {}
 	void Init()
 	{
 		m_iID = GetInvalidThreadId();
diff --git a/src/RageUtil_AutoPtr.h b/src/RageUtil_AutoPtr.h
index 4cd03bdad6..01005c1724 100644
--- a/src/RageUtil_AutoPtr.h
+++ b/src/RageUtil_AutoPtr.h
@@ -127,16 +127,11 @@ public:
 	T& operator*() { return *m_pPtr; }
 	T* operator->() { return m_pPtr; }
 
-	explicit HiddenPtr( T *p = NULL )
-	{
-		m_pPtr = p;
-	}
+	explicit HiddenPtr( T *p = NULL ): m_pPtr(p) {}
 
-	HiddenPtr( const HiddenPtr<T> &cpy )
+	HiddenPtr( const HiddenPtr<T> &cpy ): m_pPtr(NULL)
 	{
-		if( cpy.m_pPtr == NULL )
-			m_pPtr = NULL;
-		else
+		if( cpy.m_pPtr != NULL )
 			m_pPtr = HiddenPtrTraits<T>::Copy( cpy.m_pPtr );
 	}
 
diff --git a/src/SongOptions.h b/src/SongOptions.h
index 7a81c9fc45..a690b56ccd 100644
--- a/src/SongOptions.h
+++ b/src/SongOptions.h
@@ -46,8 +46,19 @@ public:
 	};
 	SoundEffectType m_SoundEffectType;
 
-
-	SongOptions() { Init(); };
+	/**
+	 * @brief Set up the SongOptions with reasonable defaults.
+	 *
+	 * This is taken from Init(), but uses the intended
+	 * initialization lists. */
+	SongOptions(): m_LifeType(LIFE_BAR), m_DrainType(DRAIN_NORMAL),
+		m_iBatteryLives(4), m_bAssistClap(false),
+		m_bAssistMetronome(false), m_fMusicRate(1.0f),
+		m_SpeedfMusicRate(1.0f), m_fHaste(0.0f),
+		m_SpeedfHaste(1.0f), m_AutosyncType(AUTOSYNC_OFF),
+		m_SoundEffectType(SOUNDEFFECT_OFF),
+		m_bStaticBackground(false), m_bRandomBGOnly(false),
+		m_bSaveScore(true), m_bSaveReplay(false) {};
 	void Init();
 	void Approach( const SongOptions& other, float fDeltaSeconds );
 	void GetMods( vector<RString> &AddTo ) const;