Convert NULL to nullptr

snapshot/system_snapshot_mac.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 17 matching lines @@
 #include "util/numeric/in_range_cast.h"
 
 namespace crashpad {
 
 namespace {
 
 template <typename T>
 T ReadIntSysctlByName(const char* name, T default_value) {
   T value;
   size_t value_len = sizeof(value);
-  if (sysctlbyname(name, &value, &value_len, NULL, 0) != 0) {
+  if (sysctlbyname(name, &value, &value_len, nullptr, 0) != 0) {
     PLOG(WARNING) << "sysctlbyname " << name;
     return default_value;
   }
 
   return value;
 }
 
 template <typename T>
 T CastIntSysctlByName(const char* name, T default_value) {
   int int_value = ReadIntSysctlByName<int>(name, default_value);
   return InRangeCast<T>(int_value, default_value);
 }
 
 std::string ReadStringSysctlByName(const char* name) {
   size_t buf_len;
-  if (sysctlbyname(name, NULL, &buf_len, NULL, 0) != 0) {
+  if (sysctlbyname(name, nullptr, &buf_len, nullptr, 0) != 0) {
     PLOG(WARNING) << "sysctlbyname (size) " << name;
     return std::string();
   }
 
   if (buf_len == 0) {
     return std::string();
   }
 
   std::string value(buf_len - 1, '\0');
-  if (sysctlbyname(name, &value[0], &buf_len, NULL, 0) != 0) {
+  if (sysctlbyname(name, &value[0], &buf_len, nullptr, 0) != 0) {
     PLOG(WARNING) << "sysctlbyname " << name;
     return std::string();
   }
 
   return value;
 }
 
 #if defined(ARCH_CPU_X86_FAMILY)
 void CallCPUID(uint32_t leaf,
                uint32_t* eax,
                uint32_t* ebx,
                uint32_t* ecx,
                uint32_t* edx) {
   asm("cpuid"
       : "=a"(*eax), "=b"(*ebx), "=c"(*ecx), "=d"(*edx)
       : "a"(leaf), "b"(0), "c"(0), "d"(0));
 }
 #endif
 
 }  // namespace
 
 namespace internal {
 
 SystemSnapshotMac::SystemSnapshotMac()
     : SystemSnapshot(),
       os_version_full_(),
       os_version_build_(),
-      process_reader_(NULL),
-      snapshot_time_(NULL),
+      process_reader_(nullptr),
+      snapshot_time_(nullptr),
       os_version_major_(0),
       os_version_minor_(0),
       os_version_bugfix_(0),
       os_server_(false),
       initialized_() {
 }
 
 SystemSnapshotMac::~SystemSnapshotMac() {
 }
 
@@ skipping 286 matching lines @@
   } else {
     *daylight_name = tzname[0];
     *dst_status = kDoesNotObserveDaylightSavingTime;
     *standard_offset_seconds = local.tm_gmtoff;
     *daylight_offset_seconds = local.tm_gmtoff;
   }
 }
 
 }  // namespace internal
 }  // namespace crashpad