Change NULLs to nullptrs.

17 files changed, 92 insertions, 92 deletions

diff --git a/src/common/chunk_file.h b/src/common/chunk_file.h
index 60978407..32af7459 100644
--- a/src/common/chunk_file.h
+++ b/src/common/chunk_file.h
@@ -204,11 +204,11 @@ public:
         {
             for (auto it = x.begin(), end = x.end(); it != end; ++it)
             {
-                if (it->second != NULL)
+                if (it->second != nullptr)
                     delete it->second;
             }
         }
-        T *dv = NULL;
+        T *dv = nullptr;
         DoMap(x, dv);
     }
 
@@ -264,11 +264,11 @@ public:
         {
             for (auto it = x.begin(), end = x.end(); it != end; ++it)
             {
-                if (it->second != NULL)
+                if (it->second != nullptr)
                     delete it->second;
             }
         }
-        T *dv = NULL;
+        T *dv = nullptr;
         DoMultimap(x, dv);
     }
 
@@ -320,7 +320,7 @@ public:
     template<class T>
     void Do(std::vector<T *> &x)
     {
-        T *dv = NULL;
+        T *dv = nullptr;
         DoVector(x, dv);
     }
 
@@ -369,7 +369,7 @@ public:
     template<class T>
     void Do(std::deque<T *> &x)
     {
-        T *dv = NULL;
+        T *dv = nullptr;
         DoDeque(x, dv);
     }
 
@@ -395,7 +395,7 @@ public:
     template<class T>
     void Do(std::list<T *> &x)
     {
-        T *dv = NULL;
+        T *dv = nullptr;
         Do(x, dv);
     }
 
@@ -433,7 +433,7 @@ public:
         {
             for (auto it = x.begin(), end = x.end(); it != end; ++it)
             {
-                if (*it != NULL)
+                if (*it != nullptr)
                     delete *it;
             }
         }
@@ -518,7 +518,7 @@ public:
     void DoClass(T *&x) {
         if (mode == MODE_READ)
         {
-            if (x != NULL)
+            if (x != nullptr)
                 delete x;
             x = new T();
         }
@@ -567,7 +567,7 @@ public:
                 {
                     if (mode == MODE_READ)
                     {
-                        cur->next = 0;
+                        cur->next = nullptr;
                         list_cur = cur;
                         if (prev)
                             prev->next = cur;
@@ -586,13 +586,13 @@ public:
                 if (mode == MODE_READ)
                 {
                     if (prev)
-                        prev->next = 0;
+                        prev->next = nullptr;
                     if (list_end)
                         *list_end = prev;
                     if (list_cur)
                     {
                         if (list_start == list_cur)
-                            list_start = 0;
+                            list_start = nullptr;
                         do
                         {
                             LinkedListItem<T>* next = list_cur->next;
diff --git a/src/common/common_funcs.h b/src/common/common_funcs.h
index d84ec4c4..1139dc3b 100644
--- a/src/common/common_funcs.h
+++ b/src/common/common_funcs.h
@@ -106,7 +106,7 @@ inline u64 _rotr64(u64 x, unsigned int shift){
             // Restore the global locale
             _configthreadlocale(_DISABLE_PER_THREAD_LOCALE);
         }
-        else if(new_locale != NULL)
+        else if(new_locale != nullptr)
         {
             // Configure the thread to set the locale only for this thread
             _configthreadlocale(_ENABLE_PER_THREAD_LOCALE);
diff --git a/src/common/console_listener.cpp b/src/common/console_listener.cpp
index d7f27c35..b6042796 100644
--- a/src/common/console_listener.cpp
+++ b/src/common/console_listener.cpp
@@ -16,7 +16,7 @@
 ConsoleListener::ConsoleListener()
 {
 #ifdef _WIN32
-    hConsole = NULL;
+    hConsole = nullptr;
     bUseColor = true;
 #else
     bUseColor = isatty(fileno(stdout));
@@ -66,19 +66,19 @@ void ConsoleListener::UpdateHandle()
 void ConsoleListener::Close()
 {
 #ifdef _WIN32
-    if (hConsole == NULL)
+    if (hConsole == nullptr)
         return;
     FreeConsole();
-    hConsole = NULL;
+    hConsole = nullptr;
 #else
-    fflush(NULL);
+    fflush(nullptr);
 #endif
 }
 
 bool ConsoleListener::IsOpen()
 {
 #ifdef _WIN32
-    return (hConsole != NULL);
+    return (hConsole != nullptr);
 #else
     return true;
 #endif
diff --git a/src/common/extended_trace.cpp b/src/common/extended_trace.cpp
index bf61ac1d..cf7c346d 100644
--- a/src/common/extended_trace.cpp
+++ b/src/common/extended_trace.cpp
@@ -82,7 +82,7 @@ static void InitSymbolPath( PSTR lpszSymbolPath, PCSTR lpszIniPath )
     }
 
     // Add user defined path
-    if ( lpszIniPath != NULL )
+    if ( lpszIniPath != nullptr )
         if ( lpszIniPath[0] != '\0' )
         {
             strcat( lpszSymbolPath, ";" );
@@ -138,7 +138,7 @@ static BOOL GetFunctionInfoFromAddresses( ULONG fnAddress, ULONG stackAddress, L
     DWORD             dwSymSize = 10000;
     TCHAR             lpszUnDSymbol[BUFFERSIZE]=_T("?");
     CHAR              lpszNonUnicodeUnDSymbol[BUFFERSIZE]="?";
-    LPTSTR            lpszParamSep = NULL;
+    LPTSTR            lpszParamSep = nullptr;
     LPTSTR            lpszParsed = lpszUnDSymbol;
     PIMAGEHLP_SYMBOL  pSym = (PIMAGEHLP_SYMBOL)GlobalAlloc( GMEM_FIXED, dwSymSize );
 
@@ -187,13 +187,13 @@ static BOOL GetFunctionInfoFromAddresses( ULONG fnAddress, ULONG stackAddress, L
 
         // Let's go through the stack, and modify the function prototype, and insert the actual
         // parameter values from the stack
-        if ( _tcsstr( lpszUnDSymbol, _T("(void)") ) == NULL && _tcsstr( lpszUnDSymbol, _T("()") ) == NULL)
+        if ( _tcsstr( lpszUnDSymbol, _T("(void)") ) == nullptr && _tcsstr( lpszUnDSymbol, _T("()") ) == nullptr)
         {
             ULONG index = 0;
             for( ; ; index++ )
             {
                 lpszParamSep = _tcschr( lpszParsed, _T(',') );
-                if ( lpszParamSep == NULL )
+                if ( lpszParamSep == nullptr )
                     break;
 
                 *lpszParamSep = _T('\0');
@@ -205,7 +205,7 @@ static BOOL GetFunctionInfoFromAddresses( ULONG fnAddress, ULONG stackAddress, L
             }
 
             lpszParamSep = _tcschr( lpszParsed, _T(')') );
-            if ( lpszParamSep != NULL )
+            if ( lpszParamSep != nullptr )
             {
                 *lpszParamSep = _T('\0');
 
@@ -248,7 +248,7 @@ static BOOL GetSourceInfoFromAddress( UINT address, LPTSTR lpszSourceInfo )
         PCSTR2LPTSTR( lineInfo.FileName, lpszFileName );
         TCHAR fname[_MAX_FNAME];
         TCHAR ext[_MAX_EXT];
-        _tsplitpath(lpszFileName, NULL, NULL, fname, ext);
+        _tsplitpath(lpszFileName, nullptr, nullptr, fname, ext);
         _stprintf( lpszSourceInfo, _T("%s%s(%d)"), fname, ext, lineInfo.LineNumber );
         ret = TRUE;
     }
@@ -332,11 +332,11 @@ void StackTrace( HANDLE hThread, const char* lpszMessage, FILE *file )
                 hProcess,
                 hThread,
                 &callStack,
-                NULL,
-                NULL,
+                nullptr,
+                nullptr,
                 SymFunctionTableAccess,
                 SymGetModuleBase,
-                NULL);
+                nullptr);
 
             if ( index == 0 )
                 continue;
@@ -389,11 +389,11 @@ void StackTrace(HANDLE hThread, const char* lpszMessage, FILE *file, DWORD eip,
                 hProcess,
                 hThread,
                 &callStack,
-                NULL,
-                NULL,
+                nullptr,
+                nullptr,
                 SymFunctionTableAccess,
                 SymGetModuleBase,
-                NULL);
+                nullptr);
 
             if ( index == 0 )
                 continue;
diff --git a/src/common/fifo_queue.h b/src/common/fifo_queue.h
index 2c18285d..b426e659 100644
--- a/src/common/fifo_queue.h
+++ b/src/common/fifo_queue.h
@@ -57,7 +57,7 @@ public:
         // advance the read pointer
         m_read_ptr = m_read_ptr->next;
         // set the next element to NULL to stop the recursive deletion
-        tmpptr->next = NULL;
+        tmpptr->next = nullptr;
         delete tmpptr;    // this also deletes the element
     }
 
@@ -86,7 +86,7 @@ private:
     class ElementPtr
     {
     public:
-        ElementPtr() : current(NULL), next(NULL) {}
+        ElementPtr() : current(nullptr), next(nullptr) {}
 
         ~ElementPtr()
         {
diff --git a/src/common/file_util.cpp b/src/common/file_util.cpp
index b6dec838..6c486050 100644
--- a/src/common/file_util.cpp
+++ b/src/common/file_util.cpp
@@ -140,7 +140,7 @@ bool CreateDir(const std::string &path)
 {
     INFO_LOG(COMMON, "CreateDir: directory %s", path.c_str());
 #ifdef _WIN32
-    if (::CreateDirectory(Common::UTF8ToTStr(path).c_str(), NULL))
+    if (::CreateDirectory(Common::UTF8ToTStr(path).c_str(), nullptr))
         return true;
     DWORD error = GetLastError();
     if (error == ERROR_ALREADY_EXISTS)
@@ -423,7 +423,7 @@ u32 ScanDirectoryTree(const std::string &directory, FSTEntry& parentEntry)
         FSTEntry entry;
         const std::string virtualName(Common::TStrToUTF8(ffd.cFileName));
 #else
-    struct dirent dirent, *result = NULL;
+    struct dirent dirent, *result = nullptr;
 
     DIR *dirp = opendir(directory.c_str());
     if (!dirp)
@@ -491,7 +491,7 @@ bool DeleteDirRecursively(const std::string &directory)
     {
         const std::string virtualName(Common::TStrToUTF8(ffd.cFileName));
 #else
-    struct dirent dirent, *result = NULL;
+    struct dirent dirent, *result = nullptr;
     DIR *dirp = opendir(directory.c_str());
     if (!dirp)
         return false;
@@ -552,7 +552,7 @@ void CopyDir(const std::string &source_path, const std::string &dest_path)
     if (!FileUtil::Exists(source_path)) return;
     if (!FileUtil::Exists(dest_path)) FileUtil::CreateFullPath(dest_path);
 
-    struct dirent dirent, *result = NULL;
+    struct dirent dirent, *result = nullptr;
     DIR *dirp = opendir(source_path.c_str());
     if (!dirp) return;
 
@@ -586,11 +586,11 @@ std::string GetCurrentDir()
 {
     char *dir;
     // Get the current working directory (getcwd uses malloc)
-    if (!(dir = __getcwd(NULL, 0))) {
+    if (!(dir = __getcwd(nullptr, 0))) {
 
         ERROR_LOG(COMMON, "GetCurrentDirectory failed: %s",
                 GetLastErrorMsg());
-        return NULL;
+        return nullptr;
     }
     std::string strDir = dir;
     free(dir);
@@ -626,7 +626,7 @@ std::string& GetExeDirectory()
     if (DolphinPath.empty())
     {
         TCHAR Dolphin_exe_Path[2048];
-        GetModuleFileName(NULL, Dolphin_exe_Path, 2048);
+        GetModuleFileName(nullptr, Dolphin_exe_Path, 2048);
         DolphinPath = Common::TStrToUTF8(Dolphin_exe_Path);
         DolphinPath = DolphinPath.substr(0, DolphinPath.find_last_of('\\'));
     }
@@ -826,7 +826,7 @@ void SplitFilename83(const std::string& filename, std::array<char, 9>& short_nam
 }
 
 IOFile::IOFile()
-    : m_file(NULL), m_good(true)
+    : m_file(nullptr), m_good(true)
 {}
 
 IOFile::IOFile(std::FILE* file)
@@ -834,7 +834,7 @@ IOFile::IOFile(std::FILE* file)
 {}
 
 IOFile::IOFile(const std::string& filename, const char openmode[])
-    : m_file(NULL), m_good(true)
+    : m_file(nullptr), m_good(true)
 {
     Open(filename, openmode);
 }
@@ -845,7 +845,7 @@ IOFile::~IOFile()
 }
 
 IOFile::IOFile(IOFile&& other)
-    : m_file(NULL), m_good(true)
+    : m_file(nullptr), m_good(true)
 {
     Swap(other);
 }
@@ -880,14 +880,14 @@ bool IOFile::Close()
     if (!IsOpen() || 0 != std::fclose(m_file))
         m_good = false;
 
-    m_file = NULL;
+    m_file = nullptr;
     return m_good;
 }
 
 std::FILE* IOFile::ReleaseHandle()
 {
     std::FILE* const ret = m_file;
-    m_file = NULL;
+    m_file = nullptr;
     return ret;
 }
 
diff --git a/src/common/file_util.h b/src/common/file_util.h
index 72b80be8..beaf7174 100644
--- a/src/common/file_util.h
+++ b/src/common/file_util.h
@@ -202,11 +202,11 @@ public:
         return WriteArray(reinterpret_cast<const char*>(data), length);
     }
 
-    bool IsOpen() { return NULL != m_file; }
+    bool IsOpen() { return nullptr != m_file; }
 
     // m_good is set to false when a read, write or other function fails
     bool IsGood() {    return m_good; }
-    operator void*() { return m_good ? m_file : NULL; }
+    operator void*() { return m_good ? m_file : nullptr; }
 
     std::FILE* ReleaseHandle();
 
diff --git a/src/common/linear_disk_cache.h b/src/common/linear_disk_cache.h
index f4263f72..bb1b5174 100644
--- a/src/common/linear_disk_cache.h
+++ b/src/common/linear_disk_cache.h
@@ -70,7 +70,7 @@ public:
             // good header, read some key/value pairs
             K key;
 
-            V *value = NULL;
+            V *value = nullptr;
             u32 value_size;
             u32 entry_number;
 
diff --git a/src/common/log_manager.cpp b/src/common/log_manager.cpp
index 2ef7d98c..39b1924c 100644
--- a/src/common/log_manager.cpp
+++ b/src/common/log_manager.cpp
@@ -21,7 +21,7 @@ void GenericLog(LogTypes::LOG_LEVELS level, LogTypes::LOG_TYPE type, const char*
     va_end(args);
 }
 
-LogManager *LogManager::m_logManager = NULL;
+LogManager *LogManager::m_logManager = nullptr;
 
 LogManager::LogManager()
 {
@@ -141,7 +141,7 @@ void LogManager::Init()
 void LogManager::Shutdown()
 {
     delete m_logManager;
-    m_logManager = NULL;
+    m_logManager = nullptr;
 }
 
 LogContainer::LogContainer(const char* shortName, const char* fullName, bool enable)
diff --git a/src/common/mem_arena.cpp b/src/common/mem_arena.cpp
index 67dbaf50..7d4fda0e 100644
--- a/src/common/mem_arena.cpp
+++ b/src/common/mem_arena.cpp
@@ -30,7 +30,7 @@
 #endif
 
 #ifdef IOS
-void* globalbase = NULL;
+void* globalbase = nullptr;
 #endif
 
 #ifdef ANDROID
@@ -121,7 +121,7 @@ void MemArena::GrabLowMemSpace(size_t size)
 {
 #ifdef _WIN32
 #ifndef _XBOX
-    hMemoryMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, (DWORD)(size), NULL);
+    hMemoryMapping = CreateFileMapping(INVALID_HANDLE_VALUE, nullptr, PAGE_READWRITE, 0, (DWORD)(size), nullptr);
     GetSystemInfo(&sysInfo);
 #endif
 #elif defined(ANDROID)
@@ -178,7 +178,7 @@ void *MemArena::CreateView(s64 offset, size_t size, void *base)
 #ifdef _XBOX
     size = roundup(size);
     // use 64kb pages
-    void * ptr = VirtualAlloc(NULL, size, MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
+    void * ptr = VirtualAlloc(nullptr, size, MEM_COMMIT | MEM_LARGE_PAGES, PAGE_READWRITE);
     return ptr;
 #else
     size = roundup(size);
@@ -243,8 +243,8 @@ u8* MemArena::Find4GBBase()
     return base;
 #else
 #ifdef IOS
-    void* base = NULL;
-    if (globalbase == NULL){
+    void* base = nullptr;
+    if (globalbase == nullptr){
         base = mmap(0, 0x08000000, PROT_READ | PROT_WRITE,
             MAP_ANON | MAP_SHARED, -1, 0);
         if (base == MAP_FAILED) {
@@ -357,7 +357,7 @@ bail:
         if (views[j].out_ptr_low && *views[j].out_ptr_low)
         {
             arena->ReleaseView(*views[j].out_ptr_low, views[j].size);
-            *views[j].out_ptr_low = NULL;
+            *views[j].out_ptr_low = nullptr;
         }
         if (*views[j].out_ptr)
         {
@@ -369,7 +369,7 @@ bail:
                 arena->ReleaseView(*views[j].out_ptr, views[j].size);
             }
 #endif
-            *views[j].out_ptr = NULL;
+            *views[j].out_ptr = nullptr;
         }
     }
     return false;
@@ -415,7 +415,7 @@ u8 *MemoryMap_Setup(const MemoryView *views, int num_views, u32 flags, MemArena
 #elif defined(_WIN32)
     // Try a whole range of possible bases. Return once we got a valid one.
     u32 max_base_addr = 0x7FFF0000 - 0x10000000;
-    u8 *base = NULL;
+    u8 *base = nullptr;
 
     for (u32 base_addr = 0x01000000; base_addr < max_base_addr; base_addr += 0x400000)
     {
@@ -463,8 +463,8 @@ void MemoryMap_Shutdown(const MemoryView *views, int num_views, u32 flags, MemAr
             arena->ReleaseView(*views[i].out_ptr_low, views[i].size);
         if (*views[i].out_ptr && (views[i].out_ptr_low && *views[i].out_ptr != *views[i].out_ptr_low))
             arena->ReleaseView(*views[i].out_ptr, views[i].size);
-        *views[i].out_ptr = NULL;
+        *views[i].out_ptr = nullptr;
         if (views[i].out_ptr_low)
-            *views[i].out_ptr_low = NULL;
+            *views[i].out_ptr_low = nullptr;
     }
 }
diff --git a/src/common/memory_util.cpp b/src/common/memory_util.cpp
index b6f66e4e..93da5500 100644
--- a/src/common/memory_util.cpp
+++ b/src/common/memory_util.cpp
@@ -93,7 +93,7 @@ void* AllocateMemoryPages(size_t size)
     // printf("Mapped memory at %p (size %ld)\n", ptr,
     //    (unsigned long)size);
 
-    if (ptr == NULL)
+    if (ptr == nullptr)
         PanicAlert("Failed to allocate raw memory");
 
     return ptr;
@@ -104,7 +104,7 @@ void* AllocateAlignedMemory(size_t size,size_t alignment)
 #ifdef _WIN32
     void* ptr =  _aligned_malloc(size,alignment);
 #else
-    void* ptr = NULL;
+    void* ptr = nullptr;
 #ifdef ANDROID
     ptr = memalign(alignment, size);
 #else
@@ -116,7 +116,7 @@ void* AllocateAlignedMemory(size_t size,size_t alignment)
     // printf("Mapped memory at %p (size %ld)\n", ptr,
     //    (unsigned long)size);
 
-    if (ptr == NULL)
+    if (ptr == nullptr)
         PanicAlert("Failed to allocate aligned memory");
 
     return ptr;
@@ -130,7 +130,7 @@ void FreeMemoryPages(void* ptr, size_t size)
 
         if (!VirtualFree(ptr, 0, MEM_RELEASE))
             PanicAlert("FreeMemoryPages failed!\n%s", GetLastErrorMsg());
-        ptr = NULL; // Is this our responsibility?
+        ptr = nullptr; // Is this our responsibility?
 
 #else
         munmap(ptr, size);
@@ -184,7 +184,7 @@ std::string MemUsage()
     // Print information about the memory usage of the process.
 
     hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processID);
-    if (NULL == hProcess) return "MemUsage Error";
+    if (nullptr == hProcess) return "MemUsage Error";
 
     if (GetProcessMemoryInfo(hProcess, &pmc, sizeof(pmc)))
         Ret = Common::StringFromFormat("%s K", Common::ThousandSeparate(pmc.WorkingSetSize / 1024, 7).c_str());
diff --git a/src/common/misc.cpp b/src/common/misc.cpp
index cf6df44e..bc9d2618 100644
--- a/src/common/misc.cpp
+++ b/src/common/misc.cpp
@@ -23,9 +23,9 @@ const char* GetLastErrorMsg()
 #ifdef _WIN32
     static __declspec(thread) char err_str[buff_size] = {};
 
-    FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(),
+    FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, nullptr, GetLastError(),
         MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-        err_str, buff_size, NULL);
+        err_str, buff_size, nullptr);
 #else
     static __thread char err_str[buff_size] = {};
 
diff --git a/src/common/platform.h b/src/common/platform.h
index d9f09543..53d98fe7 100644
--- a/src/common/platform.h
+++ b/src/common/platform.h
@@ -77,7 +77,7 @@
 inline struct tm* localtime_r(const time_t *clock, struct tm *result) {
     if (localtime_s(result, clock) == 0)
         return result;
-    return NULL;
+    return nullptr;
 }
 
 #else
diff --git a/src/common/string_util.cpp b/src/common/string_util.cpp
index dcec9275..7fb7ede5 100644
--- a/src/common/string_util.cpp
+++ b/src/common/string_util.cpp
@@ -31,7 +31,7 @@ std::string ToUpper(std::string str) {
 // faster than sscanf
 bool AsciiToHex(const char* _szValue, u32& result)
 {
-    char *endptr = NULL;
+    char *endptr = nullptr;
     const u32 value = strtoul(_szValue, &endptr, 16);
 
     if (!endptr || *endptr)
@@ -69,7 +69,7 @@ bool CharArrayFromFormatV(char* out, int outsize, const char* format, va_list ar
     // will be present in the middle of a multibyte sequence.
     //
     // This is why we lookup an ANSI (cp1252) locale here and use _vsnprintf_l.
-    static locale_t c_locale = NULL;
+    static locale_t c_locale = nullptr;
     if (!c_locale)
         c_locale = _create_locale(LC_ALL, ".1252");
     writtenCount = _vsnprintf_l(out, outsize, format, c_locale, args);
@@ -92,7 +92,7 @@ bool CharArrayFromFormatV(char* out, int outsize, const char* format, va_list ar
 std::string StringFromFormat(const char* format, ...)
 {
     va_list args;
-    char *buf = NULL;
+    char *buf = nullptr;
 #ifdef _WIN32
     int required = 0;
 
@@ -162,7 +162,7 @@ std::string StripQuotes(const std::string& s)
 
 bool TryParse(const std::string &str, u32 *const output)
 {
-    char *endptr = NULL;
+    char *endptr = nullptr;
 
     // Reset errno to a value other than ERANGE
     errno = 0;
diff --git a/src/common/thread_queue_list.h b/src/common/thread_queue_list.h
index 59efbce4..7e3b620c 100644
--- a/src/common/thread_queue_list.h
+++ b/src/common/thread_queue_list.h
@@ -37,7 +37,7 @@ struct ThreadQueueList {
     ~ThreadQueueList() {
         for (int i = 0; i < NUM_QUEUES; ++i)
         {
-            if (queues[i].data != NULL)
+            if (queues[i].data != nullptr)
                 free(queues[i].data);
         }
     }
@@ -46,7 +46,7 @@ struct ThreadQueueList {
     int contains(const IdType uid) {
         for (int i = 0; i < NUM_QUEUES; ++i)
         {
-            if (queues[i].data == NULL)
+            if (queues[i].data == nullptr)
                 continue;
 
             Queue *cur = &queues[i];
@@ -133,7 +133,7 @@ struct ThreadQueueList {
     inline void clear() {
         for (int i = 0; i < NUM_QUEUES; ++i)
         {
-            if (queues[i].data != NULL)
+            if (queues[i].data != nullptr)
                 free(queues[i].data);
         }
         memset(queues, 0, sizeof(queues));
@@ -147,7 +147,7 @@ struct ThreadQueueList {
 
     inline void prepare(u32 priority) {
         Queue *cur = &queues[priority];
-        if (cur->next == NULL)
+        if (cur->next == nullptr)
             link(priority, INITIAL_CAPACITY);
     }
 
@@ -176,7 +176,7 @@ private:
 
         for (int i = (int) priority - 1; i >= 0; --i)
         {
-            if (queues[i].next != NULL)
+            if (queues[i].next != nullptr)
             {
                 cur->next = queues[i].next;
                 queues[i].next = cur;
@@ -193,7 +193,7 @@ private:
         int size = cur->end - cur->first;
         if (size >= cur->capacity - 2)  {
             IdType *new_data = (IdType *)realloc(cur->data, cur->capacity * 2 * sizeof(IdType));
-            if (new_data != NULL)  {
+            if (new_data != nullptr)  {
                 cur->capacity *= 2;
                 cur->data = new_data;
             }
diff --git a/src/common/timer.cpp b/src/common/timer.cpp
index ded4a344..4a797f75 100644
--- a/src/common/timer.cpp
+++ b/src/common/timer.cpp
@@ -25,7 +25,7 @@ u32 Timer::GetTimeMs()
     return timeGetTime();
 #else
     struct timeval t;
-    (void)gettimeofday(&t, NULL);
+    (void)gettimeofday(&t, nullptr);
     return ((u32)(t.tv_sec * 1000 + t.tv_usec / 1000));
 #endif
 }
@@ -183,7 +183,7 @@ std::string Timer::GetTimeFormatted()
     return StringFromFormat("%s:%03i", tmp, tp.millitm);
 #else
     struct timeval t;
-    (void)gettimeofday(&t, NULL);
+    (void)gettimeofday(&t, nullptr);
     return StringFromFormat("%s:%03d", tmp, (int)(t.tv_usec / 1000));
 #endif
 }
@@ -197,7 +197,7 @@ double Timer::GetDoubleTime()
     (void)::ftime(&tp);
 #else
     struct timeval t;
-    (void)gettimeofday(&t, NULL);
+    (void)gettimeofday(&t, nullptr);
 #endif
     // Get continuous timestamp
     u64 TmpSeconds = Common::Timer::GetTimeSinceJan1970();
diff --git a/src/common/utf8.cpp b/src/common/utf8.cpp
index be4ebc85..66a2f633 100644
--- a/src/common/utf8.cpp
+++ b/src/common/utf8.cpp
@@ -281,28 +281,28 @@ int u8_read_escape_sequence(const char *str, u32 *dest)
     do {
       digs[dno++] = str[i++];
     } while (octal_digit(str[i]) && dno < 3);
-    ch = strtol(digs, NULL, 8);
+    ch = strtol(digs, nullptr, 8);
   }
   else if (str[0] == 'x') {
     while (hex_digit(str[i]) && dno < 2) {
       digs[dno++] = str[i++];
     }
     if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
   }
   else if (str[0] == 'u') {
     while (hex_digit(str[i]) && dno < 4) {
       digs[dno++] = str[i++];
     }
     if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
   }
   else if (str[0] == 'U') {
     while (hex_digit(str[i]) && dno < 8) {
       digs[dno++] = str[i++];
     }
     if (dno > 0)
-      ch = strtol(digs, NULL, 16);
+      ch = strtol(digs, nullptr, 16);
   }
   *dest = ch;
 
@@ -353,7 +353,7 @@ const char *u8_strchr(const char *s, u32 ch, int *charn)
     lasti = i;
     (*charn)++;
   }
-  return NULL;
+  return nullptr;
 }
 
 const char *u8_memchr(const char *s, u32 ch, size_t sz, int *charn)
@@ -378,7 +378,7 @@ const char *u8_memchr(const char *s, u32 ch, size_t sz, int *charn)
     lasti = i;
     (*charn)++;
   }
-  return NULL;
+  return nullptr;
 }
 
 int u8_is_locale_utf8(const char *locale)
@@ -419,35 +419,35 @@ bool UTF8StringHasNonASCII(const char *utf8string) {
 
 std::string ConvertWStringToUTF8(const wchar_t *wstr) {
     int len = (int)wcslen(wstr);
-    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr, len, 0, 0, NULL, NULL);
+    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr, len, 0, 0, nullptr, nullptr);
     std::string s;
     s.resize(size);
     if (size > 0) {
-        WideCharToMultiByte(CP_UTF8, 0, wstr, len, &s[0], size, NULL, NULL);
+        WideCharToMultiByte(CP_UTF8, 0, wstr, len, &s[0], size, nullptr, nullptr);
     }
     return s;
 }
 
 std::string ConvertWStringToUTF8(const std::wstring &wstr) {
     int len = (int)wstr.size();
-    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, 0, 0, NULL, NULL);
+    int size = (int)WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, 0, 0, nullptr, nullptr);
     std::string s;
     s.resize(size);
     if (size > 0) {
-        WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, &s[0], size, NULL, NULL);
+        WideCharToMultiByte(CP_UTF8, 0, wstr.c_str(), len, &s[0], size, nullptr, nullptr);
     }
     return s;
 }
 
 void ConvertUTF8ToWString(wchar_t *dest, size_t destSize, const std::string &source) {
     int len = (int)source.size();
-    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, NULL, 0);
+    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, nullptr, 0);
     MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, dest, std::min((int)destSize, size));
 }
 
 std::wstring ConvertUTF8ToWString(const std::string &source) {
     int len = (int)source.size();
-    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, NULL, 0);
+    int size = (int)MultiByteToWideChar(CP_UTF8, 0, source.c_str(), len, nullptr, 0);
     std::wstring str;
     str.resize(size);
     if (size > 0) {