diff --git a/src/d_player.h b/src/d_player.h
index 1ae74de32..ee1418f57 100644
--- a/src/d_player.h
+++ b/src/d_player.h
@@ -468,7 +468,7 @@ public:
 	TObjPtr<AActor*> MUSINFOactor = nullptr;		// For MUSINFO purposes
 	int8_t		MUSINFOtics = 0;
 
-	bool		settings_controller = false;	// Player can control game settings.
+	bool		settings_controller = true;	// Player can control game settings.
 	int8_t		crouching = 0;
 	int8_t		crouchdir = 0;
 
diff --git a/src/dobjgc.h b/src/dobjgc.h
index 269dffc15..41ae9ba23 100644
--- a/src/dobjgc.h
+++ b/src/dobjgc.h
@@ -167,22 +167,19 @@ class TObjPtr
 		DObject *o;
 	};
 public:
-	TObjPtr() throw()
-	{
-	}
+	TObjPtr() = default;
+	TObjPtr(const TObjPtr<T> &q) = default;
+
 	TObjPtr(T q) throw()
 		: pp(q)
 	{
 	}
-	TObjPtr(const TObjPtr<T> &q) throw()
-		: pp(q.pp)
+	T operator=(T q)
 	{
+		pp = q;
+		return *this;
 	}
-	T operator=(T q) throw()
-	{
-		return pp = q;
-		// The caller must now perform a write barrier.
-	}
+
 	operator T() throw()
 	{
 		return GC::ReadBarrier(pp);
diff --git a/src/doomtype.h b/src/doomtype.h
index 6e0ad770e..04fae16ff 100644
--- a/src/doomtype.h
+++ b/src/doomtype.h
@@ -103,7 +103,7 @@ enum
 
 struct PalEntry
 {
-	PalEntry () {}
+	PalEntry() = default;
 	PalEntry (uint32_t argb) { d = argb; }
 	operator uint32_t () const { return d; }
 	void SetRGB(PalEntry other)
@@ -146,6 +146,7 @@ struct PalEntry
 	{
 		return (d & 0xffffff) == 0xffffff;
 	}
+	PalEntry &operator= (const PalEntry &other) = default;
 	PalEntry &operator= (uint32_t other) { d = other; return *this; }
 	PalEntry InverseColor() const { PalEntry nc; nc.a = a; nc.r = 255 - r; nc.g = 255 - g; nc.b = 255 - b; return nc; }
 #ifdef __BIG_ENDIAN__
@@ -205,7 +206,7 @@ class FTextureID
 	friend void R_InitSpriteDefs();
 
 public:
-	FTextureID() throw() {}
+	FTextureID() = default;
 	bool isNull() const { return texnum == 0; }
 	bool isValid() const { return texnum > 0; }
 	bool Exists() const { return texnum >= 0; }
diff --git a/src/gl/scene/gl_portal.cpp b/src/gl/scene/gl_portal.cpp
index 62c2d21c7..6f721a7dc 100644
--- a/src/gl/scene/gl_portal.cpp
+++ b/src/gl/scene/gl_portal.cpp
@@ -399,7 +399,6 @@ void GLHorizonPortal::DrawContents(HWDrawInfo *hwdi)
 	Clocker c(PortalAll);
 
 	FMaterial * gltexture;
-	PalEntry color;
 	player_t * player=&players[consoleplayer];
 	GLSectorPlane * sp = &origin->plane;
 	auto &vp = di->Viewpoint;
diff --git a/src/hwrenderer/dynlights/hw_aabbtree.cpp b/src/hwrenderer/dynlights/hw_aabbtree.cpp
index 5df3c4ac7..3d2365bf9 100644
--- a/src/hwrenderer/dynlights/hw_aabbtree.cpp
+++ b/src/hwrenderer/dynlights/hw_aabbtree.cpp
@@ -228,7 +228,6 @@ int LevelAABBTree::GenerateTreeNode(int *lines, int num_lines, const FVector2 *c
 	// Try sort at longest axis, then if that fails then the other one.
 	// We place the sorted lines into work_buffer and then move the result back to the lines list when done.
 	int left_count, right_count;
-	FVector2 axis;
 	for (int attempt = 0; attempt < 2; attempt++)
 	{
 		// Find the sort plane for axis
diff --git a/src/hwrenderer/textures/hw_material.cpp b/src/hwrenderer/textures/hw_material.cpp
index 26276c7cf..905860204 100644
--- a/src/hwrenderer/textures/hw_material.cpp
+++ b/src/hwrenderer/textures/hw_material.cpp
@@ -319,7 +319,6 @@ void FMaterial::SetSpriteRect()
 
 bool FMaterial::TrimBorders(uint16_t *rect)
 {
-	PalEntry col;
 	int w;
 	int h;
 
diff --git a/src/name.h b/src/name.h
index 575e42d06..8dbb63444 100644
--- a/src/name.h
+++ b/src/name.h
@@ -46,7 +46,7 @@ class FString;
 class FName
 {
 public:
-	FName() = default;// : Index(0) {}
+	FName() = default;
 	FName (const char *text) { Index = NameData.FindName (text, false); }
 	FName (const char *text, bool noCreate) { Index = NameData.FindName (text, noCreate); }
 	FName (const char *text, size_t textlen, bool noCreate) { Index = NameData.FindName (text, textlen, noCreate); }
@@ -63,7 +63,7 @@ public:
 
 	FName &operator = (const char *text) { Index = NameData.FindName (text, false); return *this; }
 	FName &operator = (const FString &text);
-	FName &operator = (const FName &other) { Index = other.Index; return *this; }
+	FName &operator = (const FName &other) = default;
 	FName &operator = (ENamedName index) { Index = index; return *this; }
 
 	int SetName (const char *text, bool noCreate=false) { return Index = NameData.FindName (text, noCreate); }
diff --git a/src/p_mobj.cpp b/src/p_mobj.cpp
index 16396f29c..070745df4 100644
--- a/src/p_mobj.cpp
+++ b/src/p_mobj.cpp
@@ -2345,7 +2345,6 @@ double P_XYMovement (AActor *mo, DVector2 scroll)
 {
 	static int pushtime = 0;
 	bool bForceSlide = !scroll.isZero();
-	DAngle Angle;
 	DVector2 ptry;
 	player_t *player;
 	DVector2 move;
diff --git a/src/p_slopes.cpp b/src/p_slopes.cpp
index cec49003d..de5eeab7f 100644
--- a/src/p_slopes.cpp
+++ b/src/p_slopes.cpp
@@ -306,7 +306,7 @@ static void P_SetSlopesFromVertexHeights(FMapThing *firstmt, FMapThing *lastmt,
 		{
 			if (sec.Lines.Size() != 3) continue;	// only works with triangular sectors
 
-			DVector3 vt1, vt2, vt3, cross;
+			DVector3 vt1, vt2, vt3;
 			DVector3 vec1, vec2;
 			int vi1, vi2, vi3;
 
diff --git a/src/s_sound.h b/src/s_sound.h
index 3a64ba76f..1d42cb2ae 100644
--- a/src/s_sound.h
+++ b/src/s_sound.h
@@ -114,15 +114,8 @@ public:
 	{
 		ID = S_FindSound(name.GetChars());
 	}
-	FSoundID(const FSoundID &other)
-	{
-		ID = other.ID;
-	}
-	FSoundID &operator=(const FSoundID &other)
-	{
-		ID = other.ID;
-		return *this;
-	}
+	FSoundID(const FSoundID &other) = default;
+	FSoundID &operator=(const FSoundID &other) = default;
 	FSoundID &operator=(const char *name)
 	{
 		ID = S_FindSound(name);
@@ -168,19 +161,7 @@ class FSoundIDNoInit : public FSoundID
 {
 public:
 	FSoundIDNoInit() : FSoundID(NoInit) {}
-
-	FSoundID &operator=(const FSoundID &other)
-	{
-		return FSoundID::operator=(other);
-	}
-	FSoundID &operator=(const char *name)
-	{
-		return FSoundID::operator=(name);
-	}
-	FSoundID &operator=(const FString &name)
-	{
-		return FSoundID::operator=(name);
-	}
+	using FSoundID::operator=;
 };
 
 extern FRolloffInfo S_Rolloff;
diff --git a/src/stats.h b/src/stats.h
index 4eefdc9a9..ec963f534 100644
--- a/src/stats.h
+++ b/src/stats.h
@@ -57,12 +57,6 @@ public:
 class cycle_t
 {
 public:
-	cycle_t &operator= (const cycle_t &o)
-	{
-		Sec = o.Sec;
-		return *this;
-	}
-
 	void Reset()
 	{
 		Sec = 0;
@@ -153,12 +147,6 @@ inline uint64_t rdtsc()
 class cycle_t
 {
 public:
-	cycle_t &operator= (const cycle_t &o)
-	{
-		Counter = o.Counter;
-		return *this;
-	}
-
 	void Reset()
 	{
 		Counter = 0;
diff --git a/src/textures/texture.cpp b/src/textures/texture.cpp
index bd259b8af..88ae5b176 100644
--- a/src/textures/texture.cpp
+++ b/src/textures/texture.cpp
@@ -961,8 +961,6 @@ PalEntry FTexture::averageColor(const uint32_t *data, int size, int maxout)
 
 PalEntry FTexture::GetSkyCapColor(bool bottom)
 {
-	PalEntry col;
-
 	if (!bSWSkyColorDone)
 	{
 		bSWSkyColorDone = true;
diff --git a/src/vectors.h b/src/vectors.h
index 65a30345f..002062f8c 100644
--- a/src/vectors.h
+++ b/src/vectors.h
@@ -66,19 +66,14 @@ struct TVector2
 {
 	vec_t X, Y;
 
-	TVector2 ()
-	{
-	}
+	TVector2() = default;
 
 	TVector2 (vec_t a, vec_t b)
 		: X(a), Y(b)
 	{
 	}
 
-	TVector2 (const TVector2 &other)
-		: X(other.X), Y(other.Y)
-	{
-	}
+	TVector2(const TVector2 &other) = default;
 
 	TVector2 (const TVector3<vec_t> &other)	// Copy the X and Y from the 3D vector and discard the Z
 		: X(other.X), Y(other.Y)
@@ -95,18 +90,7 @@ struct TVector2
 		return X == 0 && Y == 0;
 	}
 
-	TVector2 &operator= (const TVector2 &other)
-	{
-		// This might seem backwards, but this helps produce smaller code when a newly
-		// created vector is assigned, because the components can just be popped off
-		// the FPU stack in order without the need for fxch. For platforms with a
-		// more sensible registered-based FPU, of course, the order doesn't matter.
-		// (And, yes, I know fxch can improve performance in the right circumstances,
-		// but this isn't one of those times. Here, it's little more than a no-op that
-		// makes the exe 2 bytes larger whenever you assign one vector to another.)
-		Y = other.Y, X = other.X;
-		return *this;
-	}
+	TVector2 &operator= (const TVector2 &other) = default;
 
 	// Access X and Y as an array
 	vec_t &operator[] (int index)
@@ -317,9 +301,7 @@ struct TVector3
 
 	vec_t X, Y, Z;
 
-	TVector3 ()
-	{
-	}
+	TVector3() = default;
 
 	TVector3 (vec_t a, vec_t b, vec_t c)
 		: X(a), Y(b), Z(c)
@@ -331,10 +313,7 @@ struct TVector3
 	{
 	}
 
-	TVector3 (const TVector3 &other)
-		: X(other.X), Y(other.Y), Z(other.Z)
-	{
-	}
+	TVector3(const TVector3 &other) = default;
 
 	TVector3 (const Vector2 &xy, vec_t z)
 		: X(xy.X), Y(xy.Y), Z(z)
@@ -353,11 +332,7 @@ struct TVector3
 		return X == 0 && Y == 0 && Z == 0;
 	}
 
-	TVector3 &operator= (const TVector3 &other)
-	{
-		Z = other.Z, Y = other.Y, X = other.X;
-		return *this;
-	}
+	TVector3 &operator= (const TVector3 &other) = default;
 
 	// Access X and Y and Z as an array
 	vec_t &operator[] (int index)
@@ -546,13 +521,12 @@ struct TVector3
 			{
 				right = { 0.f, 0.f, 1.f };
 			}
-
-			if (major == 1 || (major == 2 && n[2] > 0.f))
+			else if (major == 1 || (major == 2 && n[2] > 0.f))
 			{
 				right = { 1.f, 0.f, 0.f };
 			}
-
-			if (major == 2 && n[2] < 0.0f)
+			// Unconditional to ease static analysis
+			else // major == 2 && n[2] <= 0.0f		
 			{
 				right = { -1.f, 0.f, 0.f };
 			}
@@ -662,9 +636,7 @@ struct TVector4
 
 	vec_t X, Y, Z, W;
 
-	TVector4()
-	{
-	}
+	TVector4() = default;
 
 	TVector4(vec_t a, vec_t b, vec_t c, vec_t d)
 		: X(a), Y(b), Z(c), W(d)
@@ -676,10 +648,7 @@ struct TVector4
 	{
 	}
 
-	TVector4(const TVector4 &other)
-		: X(other.X), Y(other.Y), Z(other.Z), W(other.W)
-	{
-	}
+	TVector4(const TVector4 &other) = default;
 
 	TVector4(const Vector3 &xyz, vec_t w)
 		: X(xyz.X), Y(xyz.Y), Z(xyz.Z), W(w)
@@ -696,11 +665,7 @@ struct TVector4
 		return X == 0 && Y == 0 && Z == 0 && W == 0;
 	}
 
-	TVector4 &operator= (const TVector4 &other)
-	{
-		W = other.W, Z = other.Z, Y = other.Y, X = other.X;
-		return *this;
-	}
+	TVector4 &operator= (const TVector4 &other) = default;
 
 	// Access X and Y and Z as an array
 	vec_t &operator[] (int index)
@@ -939,16 +904,8 @@ struct TMatrix3x3
 
 	vec_t Cells[3][3];
 
-	TMatrix3x3()
-	{
-	}
-
-	TMatrix3x3(const TMatrix3x3 &other)
-	{
-		(*this)[0] = other[0];
-		(*this)[1] = other[1];
-		(*this)[2] = other[2];
-	}
+	TMatrix3x3() = default;
+	TMatrix3x3(const TMatrix3x3 &other) = default;
 
 	TMatrix3x3(const Vector3 &row1, const Vector3 &row2, const Vector3 &row3)
 	{
@@ -1151,32 +1108,15 @@ struct TAngle
 	TAngle &operator= (long other) = delete;
 	TAngle &operator= (unsigned long other) = delete;
 
-	TAngle ()
-	{
-	}
+	TAngle() = default;
 
 	TAngle (vec_t amt)
 		: Degrees(amt)
 	{
 	}
 
-	/*
-	TAngle (int amt)
-		: Degrees(vec_t(amt))
-	{
-	}
-	*/
-
-	TAngle (const TAngle &other)
-		: Degrees(other.Degrees)
-	{
-	}
-
-	TAngle &operator= (const TAngle &other)
-	{
-		Degrees = other.Degrees;
-		return *this;
-	}
+	TAngle(const TAngle &other) = default;
+	TAngle &operator= (const TAngle &other) = default;
 
 	TAngle &operator= (double other)
 	{
@@ -1491,25 +1431,15 @@ struct TRotator
 	Angle Roll;		// rotation about the forward axis.
 	Angle CamRoll;	// Roll specific to actor cameras. Used by quakes.
 
-	TRotator ()
-	{
-	}
+	TRotator() = default;
 
 	TRotator (const Angle &p, const Angle &y, const Angle &r)
 		: Pitch(p), Yaw(y), Roll(r)
 	{
 	}
 
-	TRotator (const TRotator &other)
-		: Pitch(other.Pitch), Yaw(other.Yaw), Roll(other.Roll)
-	{
-	}
-
-	TRotator &operator= (const TRotator &other)
-	{
-		Roll = other.Roll, Yaw = other.Yaw, Pitch = other.Pitch;
-		return *this;
-	}
+	TRotator(const TRotator &other) = default;
+	TRotator &operator= (const TRotator &other) = default;
 
 	// Access angles as an array
 	Angle &operator[] (int index)
diff --git a/src/zstring.cpp b/src/zstring.cpp
index 5e57df45b..ff17fd607 100644
--- a/src/zstring.cpp
+++ b/src/zstring.cpp
@@ -580,7 +580,7 @@ long FString::LastIndexOfAny (const char *charset, long endIndex) const
 
 long FString::LastIndexOf (const FString &substr) const
 {
-	return LastIndexOf(substr.Chars, Len() - substr.Len(), substr.Len());
+	return LastIndexOf(substr.Chars, long(Len() - substr.Len()), substr.Len());
 }
 
 long FString::LastIndexOf (const FString &substr, long endIndex) const
@@ -590,7 +590,7 @@ long FString::LastIndexOf (const FString &substr, long endIndex) const
 
 long FString::LastIndexOf (const char *substr) const
 {
-	return LastIndexOf(substr, Len() - strlen(substr), strlen(substr));
+	return LastIndexOf(substr, long(Len() - strlen(substr)), strlen(substr));
 }
 
 long FString::LastIndexOf (const char *substr, long endIndex) const
@@ -602,7 +602,7 @@ long FString::LastIndexOf (const char *substr, long endIndex, size_t substrlen)
 {
 	if ((size_t)endIndex + substrlen > Len())
 	{
-		endIndex = Len() - substrlen;
+		endIndex = long(Len() - substrlen);
 	}
 	while (endIndex >= 0)
 	{