clang-modernize -use-nullptr

and s/\bNULL\b/nullptr/g for *.cpp/h/mm files not compiled on my machine

Source/Core/Core/Boot/Boot.cpp

@@ -125,7 +125,7 @@ bool CBoot::FindMapFile(std::string* existing_map_file,
 bool CBoot::LoadMapFromFilename()
 {
 	std::string strMapFilename;
-	bool found = FindMapFile(&strMapFilename, NULL);
+	bool found = FindMapFile(&strMapFilename, nullptr);
 	if (found && g_symbolDB.LoadMap(strMapFilename.c_str()))
 	{
 		UpdateDebugger_MapLoaded();
@@ -201,7 +201,7 @@ bool CBoot::BootUp()
 	case SCoreStartupParameter::BOOT_ISO:
 	{
 		DiscIO::IVolume* pVolume = DiscIO::CreateVolumeFromFilename(_StartupPara.m_strFilename);
-		if (pVolume == NULL)
+		if (pVolume == nullptr)
 			break;
 
 		bool isoWii = DiscIO::IsVolumeWiiDisc(pVolume);

Source/Core/Core/Boot/Boot.h

@@ -30,10 +30,10 @@ public:
 	// Tries to find a map file for the current game by looking first in the
 	// local user directory, then in the shared user directory.
 	//
-	// If existing_map_file is not NULL and a map file exists, it is set to the
+	// If existing_map_file is not nullptr and a map file exists, it is set to the
 	// path to the existing map file.
 	//
-	// If writable_map_file is not NULL, it is set to the path to where a map
+	// If writable_map_file is not nullptr, it is set to the path to where a map
 	// file should be saved.
 	//
 	// Returns true if a map file exists, false if none could be found.
@@ -43,7 +43,7 @@ public:
 private:
 	static void RunFunction(u32 _iAddr);
 
-	static void UpdateDebugger_MapLoaded(const char* _gameID = NULL);
+	static void UpdateDebugger_MapLoaded(const char* _gameID = nullptr);
 
 	static bool LoadMapFromFilename();
 	static bool Boot_ELF(const char *filename);

Source/Core/Core/Boot/Boot_DOL.cpp

@@ -34,13 +34,13 @@ CDolLoader::~CDolLoader()
 	for (auto& sect : text_section)
 	{
 		delete [] sect;
-		sect = NULL;
+		sect = nullptr;
 	}
 
 	for (auto& sect : data_section)
 	{
 		delete [] sect;
-		sect = NULL;
+		sect = nullptr;
 	}
 }
 
@@ -54,9 +54,9 @@ void CDolLoader::Initialize(u8* _pBuffer, u32 _Size)
 		p[i] = Common::swap32(p[i]);
 
 	for (auto& sect : text_section)
-		sect = NULL;
+		sect = nullptr;
 	for (auto& sect : data_section)
-		sect = NULL;
+		sect = nullptr;
 
 	u32 HID4_pattern = 0x7c13fba6;
 	u32 HID4_mask = 0xfc1fffff;

Source/Core/Core/Boot/Boot_WiiWAD.cpp

@@ -90,7 +90,7 @@ bool CBoot::Boot_WiiWAD(const char* _pFilename)
 
 	// DOL
 	const DiscIO::SNANDContent* pContent = ContentLoader.GetContentByIndex(ContentLoader.GetBootIndex());
-	if (pContent == NULL)
+	if (pContent == nullptr)
 		return false;
 
 	WII_IPC_HLE_Interface::SetDefaultContentFile(_pFilename);
@@ -119,7 +119,7 @@ bool CBoot::Boot_WiiWAD(const char* _pFilename)
 
 	// Load patches and run startup patches
 	const DiscIO::IVolume* pVolume = DiscIO::CreateVolumeFromFilename(_pFilename);
-	if (pVolume != NULL)
+	if (pVolume != nullptr)
 		PatchEngine::LoadPatches();
 
 	return true;

Source/Core/Core/Boot/ElfReader.cpp

@@ -82,7 +82,7 @@ ElfReader::ElfReader(void *ptr)
 const char *ElfReader::GetSectionName(int section) const
 {
 	if (sections[section].sh_type == SHT_NULL)
-		return NULL;
+		return nullptr;
 
 	int nameOffset = sections[section].sh_name;
 	char *ptr = (char*)GetSectionDataPtr(header->e_shstrndx);
@@ -90,7 +90,7 @@ const char *ElfReader::GetSectionName(int section) const
 	if (ptr)
 		return ptr + nameOffset;
 	else
-		return NULL;
+		return nullptr;
 }
 
 bool ElfReader::LoadInto(u32 vaddr)
@@ -181,7 +181,7 @@ SectionID ElfReader::GetSectionByName(const char *name, int firstSection) const
 	{
 		const char *secname = GetSectionName(i);
 
-		if (secname != NULL && strcmp(name, secname) == 0)
+		if (secname != nullptr && strcmp(name, secname) == 0)
 			return i;
 	}
 	return -1;

Source/Core/Core/Boot/ElfReader.h

@@ -51,11 +51,11 @@ public:
 	const u8 *GetSectionDataPtr(int section) const
 	{
 		if (section < 0 || section >= header->e_shnum)
-			return 0;
+			return nullptr;
 		if (sections[section].sh_type != SHT_NOBITS)
 			return GetPtr(sections[section].sh_offset);
 		else
-			return 0;
+			return nullptr;
 	}
 	bool IsCodeSection(int section) const
 	{