Replace NULL with nullptr in all C++ files.

webrtc/voice_engine/voe_hardware_impl.cc

 /*
  *  Copyright (c) 2012 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.
  */
 
 #include "webrtc/voice_engine/voe_hardware_impl.h"
 
 #include <assert.h>
 
 #include "webrtc/system_wrappers/include/trace.h"
 #include "webrtc/voice_engine/include/voe_errors.h"
 #include "webrtc/voice_engine/voice_engine_impl.h"
 
 namespace webrtc {
 
 VoEHardware* VoEHardware::GetInterface(VoiceEngine* voiceEngine) {
-  if (NULL == voiceEngine) {
-    return NULL;
+  if (nullptr == voiceEngine) {
+    return nullptr;
   }
   VoiceEngineImpl* s = static_cast<VoiceEngineImpl*>(voiceEngine);
   s->AddRef();
   return s;
 }
 
 VoEHardwareImpl::VoEHardwareImpl(voe::SharedData* shared) : _shared(shared) {
   WEBRTC_TRACE(kTraceMemory, kTraceVoice, VoEId(_shared->instance_id(), -1),
                "VoEHardwareImpl() - ctor");
 }
@@ skipping 104 matching lines @@
   return 0;
 }
 
 int VoEHardwareImpl::GetRecordingDeviceName(int index,
                                             char strNameUTF8[128],
                                             char strGuidUTF8[128]) {
   if (!_shared->statistics().Initialized()) {
     _shared->SetLastError(VE_NOT_INITED, kTraceError);
     return -1;
   }
-  if (strNameUTF8 == NULL) {
+  if (strNameUTF8 == nullptr) {
     _shared->SetLastError(VE_INVALID_ARGUMENT, kTraceError,
                           "GetRecordingDeviceName() invalid argument");
     return -1;
   }
 
-  // Note that strGuidUTF8 is allowed to be NULL
+  // Note that strGuidUTF8 is allowed to be null
 
   // Init len variable to length of supplied vectors
   const uint16_t strLen = 128;
 
   // Check if length has been changed in module
   static_assert(strLen == kAdmMaxDeviceNameSize, "");
   static_assert(strLen == kAdmMaxGuidSize, "");
 
   char name[strLen];
   char guid[strLen];
 
   // Get names from module
   if (_shared->audio_device()->RecordingDeviceName(index, name, guid) != 0) {
     _shared->SetLastError(VE_CANNOT_RETRIEVE_DEVICE_NAME, kTraceError,
                           "GetRecordingDeviceName() failed to get device name");
     return -1;
   }
 
   // Copy to vectors supplied by user
   strncpy(strNameUTF8, name, strLen);
 
-  if (strGuidUTF8 != NULL) {
+  if (strGuidUTF8 != nullptr) {
     strncpy(strGuidUTF8, guid, strLen);
   }
 
   return 0;
 }
 
 int VoEHardwareImpl::GetPlayoutDeviceName(int index,
                                           char strNameUTF8[128],
                                           char strGuidUTF8[128]) {
   if (!_shared->statistics().Initialized()) {
     _shared->SetLastError(VE_NOT_INITED, kTraceError);
     return -1;
   }
-  if (strNameUTF8 == NULL) {
+  if (strNameUTF8 == nullptr) {
     _shared->SetLastError(VE_INVALID_ARGUMENT, kTraceError,
                           "GetPlayoutDeviceName() invalid argument");
     return -1;
   }
 
-  // Note that strGuidUTF8 is allowed to be NULL
+  // Note that strGuidUTF8 is allowed to be null
 
   // Init len variable to length of supplied vectors
   const uint16_t strLen = 128;
 
   // Check if length has been changed in module
   static_assert(strLen == kAdmMaxDeviceNameSize, "");
   static_assert(strLen == kAdmMaxGuidSize, "");
 
   char name[strLen];
   char guid[strLen];
 
   // Get names from module
   if (_shared->audio_device()->PlayoutDeviceName(index, name, guid) != 0) {
     _shared->SetLastError(VE_CANNOT_RETRIEVE_DEVICE_NAME, kTraceError,
                           "GetPlayoutDeviceName() failed to get device name");
     return -1;
   }
 
   // Copy to vectors supplied by user
   strncpy(strNameUTF8, name, strLen);
 
-  if (strGuidUTF8 != NULL) {
+  if (strGuidUTF8 != nullptr) {
     strncpy(strGuidUTF8, guid, strLen);
   }
 
   return 0;
 }
 
 int VoEHardwareImpl::SetRecordingDevice(int index,
                                         StereoChannel recordingChannel) {
   WEBRTC_TRACE(kTraceApiCall, kTraceVoice, VoEId(_shared->instance_id(), -1),
                "SetRecordingDevice(index=%d, recordingChannel=%d)", index,
@@ skipping 270 matching lines @@
 
 int VoEHardwareImpl::EnableBuiltInNS(bool enable) {
   if (!_shared->statistics().Initialized()) {
     _shared->SetLastError(VE_NOT_INITED, kTraceError);
     return -1;
   }
   return _shared->audio_device()->EnableBuiltInNS(enable);
 }
 
 }  // namespace webrtc