Replace NULL with nullptr or null in webrtc/base/.

webrtc/base/fileutils.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 22 matching lines @@
 
 // A DirectoryIterator is created with a given directory. It originally points
 // to the first file in the directory, and can be advanecd with Next(). This
 // allows you to get information about each file.
 
   // Constructor
 DirectoryIterator::DirectoryIterator()
 #ifdef WEBRTC_WIN
     : handle_(INVALID_HANDLE_VALUE) {
 #else
-    : dir_(NULL), dirent_(NULL) {
+    : dir_(nullptr),
+      dirent_(nullptr){
 #endif
 }
 
   // Destructor
 DirectoryIterator::~DirectoryIterator() {
 #if defined(WEBRTC_WIN)
   if (handle_ != INVALID_HANDLE_VALUE)
     ::FindClose(handle_);
 #else
   if (dir_)
     closedir(dir_);
 #endif
 }
 
   // Starts traversing a directory.
   // dir is the directory to traverse
   // returns true if the directory exists and is valid
 bool DirectoryIterator::Iterate(const Pathname &dir) {
   directory_ = dir.pathname();
 #if defined(WEBRTC_WIN)
   if (handle_ != INVALID_HANDLE_VALUE)
     ::FindClose(handle_);
   std::string d = dir.pathname() + '*';
   handle_ = ::FindFirstFile(ToUtf16(d).c_str(), &data_);
   if (handle_ == INVALID_HANDLE_VALUE)
     return false;
 #else
-  if (dir_ != NULL)
+  if (dir_ != nullptr)
     closedir(dir_);
   dir_ = ::opendir(directory_.c_str());
-  if (dir_ == NULL)
+  if (dir_ == nullptr)
     return false;
   dirent_ = readdir(dir_);
-  if (dirent_ == NULL)
+  if (dirent_ == nullptr)
     return false;
 
   if (::stat(std::string(directory_ + Name()).c_str(), &stat_) != 0)
     return false;
 #endif
   return true;
 }
 
   // Advances to the next file
   // returns true if there were more files in the directory.
 bool DirectoryIterator::Next() {
 #if defined(WEBRTC_WIN)
   return ::FindNextFile(handle_, &data_) == TRUE;
 #else
   dirent_ = ::readdir(dir_);
-  if (dirent_ == NULL)
+  if (dirent_ == nullptr)
     return false;
 
   return ::stat(std::string(directory_ + Name()).c_str(), &stat_) == 0;
 #endif
 }
 
   // returns true if the file currently pointed to is a directory
 bool DirectoryIterator::IsDirectory() const {
 #if defined(WEBRTC_WIN)
   return (data_.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != FALSE;
 #else
   return S_ISDIR(stat_.st_mode);
 #endif
 }
 
   // returns the name of the file currently pointed to
 std::string DirectoryIterator::Name() const {
 #if defined(WEBRTC_WIN)
   return ToUtf8(data_.cFileName);
 #else
   RTC_DCHECK(dirent_);
   return dirent_->d_name;
 #endif
 }
 
-FilesystemInterface* Filesystem::default_filesystem_ = NULL;
+FilesystemInterface* Filesystem::default_filesystem_ = nullptr;
 
 FilesystemInterface *Filesystem::EnsureDefaultFilesystem() {
   if (!default_filesystem_) {
 #if defined(WEBRTC_WIN)
     default_filesystem_ = new Win32Filesystem();
 #else
     default_filesystem_ = new UnixFilesystem();
 #endif
   }
   return default_filesystem_;
@@ skipping 30 matching lines @@
   }
   delete di;
   return success;
 }
 
 bool FilesystemInterface::DeleteFolderAndContents(const Pathname& folder) {
   return DeleteFolderContents(folder) && DeleteEmptyFolder(folder);
 }
 
 }  // namespace rtc