addressed a few things pointed out by static analysis

* marking move assignments noexcept
* using [[fallthrough]] consistently.
* getting rid of alloca.

libraries/ZWidget/src/core/nanosvg/nanosvg.h

@@ -193,7 +193,7 @@ void nsvgDelete(NSVGimage* image);
 #include <math.h>
 
 #ifdef _MSC_VER
-#pragma warning(push);
+#pragma warning(push)
 #pragma warning(disable:4244)
 #endif
 
@@ -3099,7 +3099,7 @@ void nsvgDelete(NSVGimage* image)
 }
 
 #ifdef _MSC_VER
-#pragma warning(pop);
+#pragma warning(pop)
 #endif
 
 #endif // NANOSVG_IMPLEMENTATION

libraries/asmjit/asmjit/asmjit_build.h

@@ -819,11 +819,7 @@
 // [@CC_FALLTHROUGH{@]
 // \def ASMJIT_FALLTHROUGH
 // The code falls through annotation (switch / case).
-#if ASMJIT_CC_CLANG && __cplusplus >= 201103L
-# define ASMJIT_FALLTHROUGH [[clang::fallthrough]]
-#else
-# define ASMJIT_FALLTHROUGH (void)0
-#endif
+# define ASMJIT_FALLTHROUGH [[fallthrough]]
 // [@CC_FALLTHROUGH}@]
 
 // [@CC_UNUSED{@]

src/common/textures/bitmap.h

@@ -108,7 +108,7 @@ public:
 
 	FBitmap(const FBitmap &other) = delete;	// disallow because in nearly all cases this creates an unwanted copy.
 
-	FBitmap(FBitmap &&other)
+	FBitmap(FBitmap &&other) noexcept
 	{
 		data = other.data;
 		Pitch = other.Pitch;
@@ -122,7 +122,7 @@ public:
 
 	FBitmap &operator=(const FBitmap &other) = delete;	// disallow because in nearly all cases this creates an unwanted copy. Use Copy instead.
 
-	FBitmap &operator=(FBitmap &&other)
+	FBitmap &operator=(FBitmap &&other) noexcept
 	{
 		if (data != nullptr && FreeBuffer) delete[] data;
 		data = other.data;

src/common/utility/zstring.cpp

@@ -217,7 +217,7 @@ FString &FString::operator = (const FString &other)
 	return *this;
 }
 
-FString &FString::operator = (FString &&other)
+FString &FString::operator = (FString &&other) noexcept
 {
 	assert (Chars != NULL);
 

src/maploader/maploader.cpp

@@ -1182,8 +1182,8 @@ bool MapLoader::LoadNodes (MapData * map)
 	
 	auto &nodes = Level->nodes;
 	nodes.Alloc(numnodes);		
-	used = (uint16_t *)alloca (sizeof(uint16_t)*numnodes);
-	memset (used, 0, sizeof(uint16_t)*numnodes);
+	TArray<uint16_t> used(numnodes, true);
+	memset (used.data(), 0, sizeof(uint16_t) * numnodes);
 
 	auto mnp = map->Read(ML_NODES);
 	mn = (nodetype*)(mnp.Data() + nodetype::NF_LUMPOFFSET);

src/playsim/mapthinkers/a_floor.cpp

@@ -155,7 +155,7 @@ void DFloor::Tick ()
 				case genFloorChgT:
 				case genFloorChg0:
 					m_Sector->SetSpecial(&m_NewSpecial);
-					//fall thru
+					[[fallthrough]];
 				case genFloorChg:
 					m_Sector->SetTexture(sector_t::floor, m_Texture);
 					break;
@@ -171,7 +171,7 @@ void DFloor::Tick ()
 				case genFloorChgT:
 				case genFloorChg0:
 					m_Sector->SetSpecial(&m_NewSpecial);
-					//fall thru
+					[[fallthrough]];
 				case genFloorChg:
 					m_Sector->SetTexture(sector_t::floor, m_Texture);
 					break;

src/r_data/portalgroups.cpp

@@ -400,7 +400,7 @@ static void GroupLinePortals(FLevelLocals *Level)
 
 	for (unsigned i = 0; i < Level->linePortals.Size(); i++)
 	{
-		auto port = Level->linePortals[i];
+		const auto& port = Level->linePortals[i];
 		bool gotsome;
 
 		if (tempindex[i] == -1)

src/rendering/swrenderer/textures/warpbuffer.h

@@ -44,7 +44,7 @@ void WarpBuffer(TYPE *Pixels, const TYPE *source, int width, int height, int xmu
 
 	if (warptype == 1)
 	{
-		TYPE *buffer = (TYPE *)alloca(sizeof(TYPE) * max(width, height));
+		TArray<TYPE> buffer(max(width, height), true);
 		// [mxd] Rewrote to fix animation for NPo2 textures
 		unsigned timebase = unsigned(time * Speed * 32 / 28);
 		for (y = height - 1; y >= 0; y--)

src/rendering/swrenderer/things/r_voxel.cpp

@@ -373,8 +373,8 @@ namespace swrenderer
 		if ((abs(globalposz - dasprz) >> 10) >= abs(dazscale)) return;
 
 		x = 0; y = 0; j = max(mip->SizeX, mip->SizeY);
-		fixed_t *ggxinc = (fixed_t *)alloca((j + 1) * sizeof(fixed_t) * 2);
-		fixed_t *ggyinc = ggxinc + (j + 1);
+		TArray<fixed_t> ggxinc((j + 1) * 2);
+		fixed_t *ggyinc = ggxinc.data() + (j + 1);
 		for (i = 0; i <= j; i++)
 		{
 			ggxinc[i] = x; x += gxinc;