Use C++11 nullptr

34 files changed, 160 insertions, 165 deletions

diff --git a/Source/CTest/cmCTestBZR.cxx b/Source/CTest/cmCTestBZR.cxx
index 94f39c2..4c9c5ca 100644
--- a/Source/CTest/cmCTestBZR.cxx
+++ b/Source/CTest/cmCTestBZR.cxx
@@ -136,13 +136,13 @@ std::string cmCTestBZR::LoadInfo()
 {
   // Run "bzr info" to get the repository info from the work tree.
   const char* bzr = this->CommandLineTool.c_str();
-  const char* bzr_info[] = { bzr, "info", CM_NULLPTR };
+  const char* bzr_info[] = { bzr, "info", nullptr };
   InfoParser iout(this, "info-out> ");
   OutputLogger ierr(this->Log, "info-err> ");
   this->RunChild(bzr_info, &iout, &ierr);
 
   // Run "bzr revno" to get the repository revision number from the work tree.
-  const char* bzr_revno[] = { bzr, "revno", CM_NULLPTR };
+  const char* bzr_revno[] = { bzr, "revno", nullptr };
   std::string rev;
   RevnoParser rout(this, "revno-out> ", rev);
   OutputLogger rerr(this->Log, "revno-err> ");
@@ -190,7 +190,7 @@ public:
     if (res) {
       XML_SetUnknownEncodingHandler(static_cast<XML_Parser>(this->Parser),
                                     cmBZRXMLParserUnknownEncodingHandler,
-                                    CM_NULLPTR);
+                                    nullptr);
     }
     return res;
   }
@@ -380,7 +380,7 @@ bool cmCTestBZR::UpdateImpl()
 
   bzr_update.push_back(this->URL.c_str());
 
-  bzr_update.push_back(CM_NULLPTR);
+  bzr_update.push_back(nullptr);
 
   // For some reason bzr uses stderr to display the update status.
   OutputLogger out(this->Log, "pull-out> ");
@@ -408,8 +408,7 @@ bool cmCTestBZR::LoadRevisions()
   // Run "bzr log" to get all global revisions of interest.
   const char* bzr = this->CommandLineTool.c_str();
   const char* bzr_log[] = {
-    bzr,       "log", "-v", "-r", revs.c_str(), "--xml", this->URL.c_str(),
-    CM_NULLPTR
+    bzr, "log", "-v", "-r", revs.c_str(), "--xml", this->URL.c_str(), nullptr
   };
   {
     LogParser out(this, "log-out> ");
@@ -467,7 +466,7 @@ bool cmCTestBZR::LoadModifications()
 {
   // Run "bzr status" which reports local modifications.
   const char* bzr = this->CommandLineTool.c_str();
-  const char* bzr_status[] = { bzr, "status", "-SV", CM_NULLPTR };
+  const char* bzr_status[] = { bzr, "status", "-SV", nullptr };
   StatusParser out(this, "status-out> ");
   OutputLogger err(this->Log, "status-err> ");
   this->RunChild(bzr_status, &out, &err);
diff --git a/Source/CTest/cmCTestBuildAndTestHandler.cxx b/Source/CTest/cmCTestBuildAndTestHandler.cxx
index cc29071..466fc78 100644
--- a/Source/CTest/cmCTestBuildAndTestHandler.cxx
+++ b/Source/CTest/cmCTestBuildAndTestHandler.cxx
@@ -65,7 +65,7 @@ int cmCTestBuildAndTestHandler::RunCMake(std::string* outstring,
     args.push_back(toolset);
   }
 
-  const char* config = CM_NULLPTR;
+  const char* config = nullptr;
   if (!this->CTest->GetConfigType().empty()) {
     config = this->CTest->GetConfigType().c_str();
   }
@@ -148,10 +148,10 @@ public:
   }
   ~cmCTestBuildAndTestCaptureRAII()
   {
-    this->CM.SetProgressCallback(CM_NULLPTR, CM_NULLPTR);
-    cmSystemTools::SetStderrCallback(CM_NULLPTR, CM_NULLPTR);
-    cmSystemTools::SetStdoutCallback(CM_NULLPTR, CM_NULLPTR);
-    cmSystemTools::SetMessageCallback(CM_NULLPTR, CM_NULLPTR);
+    this->CM.SetProgressCallback(nullptr, nullptr);
+    cmSystemTools::SetStderrCallback(nullptr, nullptr);
+    cmSystemTools::SetStdoutCallback(nullptr, nullptr);
+    cmSystemTools::SetMessageCallback(nullptr, nullptr);
   }
 };
 
@@ -236,7 +236,7 @@ int cmCTestBuildAndTestHandler::RunCMakeAndTest(std::string* outstring)
       }
     }
     std::string output;
-    const char* config = CM_NULLPTR;
+    const char* config = nullptr;
     if (!this->CTest->GetConfigType().empty()) {
       config = this->CTest->GetConfigType().c_str();
     }
@@ -308,7 +308,7 @@ int cmCTestBuildAndTestHandler::RunCMakeAndTest(std::string* outstring)
   for (size_t k = 0; k < this->TestCommandArgs.size(); ++k) {
     testCommand.push_back(this->TestCommandArgs[k].c_str());
   }
-  testCommand.push_back(CM_NULLPTR);
+  testCommand.push_back(nullptr);
   std::string outs;
   int retval = 0;
   // run the test from the this->BuildRunDir if set
@@ -334,8 +334,8 @@ int cmCTestBuildAndTestHandler::RunCMakeAndTest(std::string* outstring)
     }
   }
 
-  int runTestRes = this->CTest->RunTest(testCommand, &outs, &retval,
-                                        CM_NULLPTR, remainingTime, CM_NULLPTR);
+  int runTestRes = this->CTest->RunTest(testCommand, &outs, &retval, nullptr,
+                                        remainingTime, nullptr);
 
   if (runTestRes != cmsysProcess_State_Exited || retval != 0) {
     out << "Test command failed: " << testCommand[0] << "\n";
diff --git a/Source/CTest/cmCTestBuildCommand.cxx b/Source/CTest/cmCTestBuildCommand.cxx
index 64ef8de..074f085 100644
--- a/Source/CTest/cmCTestBuildCommand.cxx
+++ b/Source/CTest/cmCTestBuildCommand.cxx
@@ -17,14 +17,14 @@ class cmExecutionStatus;
 
 cmCTestBuildCommand::cmCTestBuildCommand()
 {
-  this->GlobalGenerator = CM_NULLPTR;
+  this->GlobalGenerator = nullptr;
   this->Arguments[ctb_NUMBER_ERRORS] = "NUMBER_ERRORS";
   this->Arguments[ctb_NUMBER_WARNINGS] = "NUMBER_WARNINGS";
   this->Arguments[ctb_TARGET] = "TARGET";
   this->Arguments[ctb_CONFIGURATION] = "CONFIGURATION";
   this->Arguments[ctb_FLAGS] = "FLAGS";
   this->Arguments[ctb_PROJECT_NAME] = "PROJECT_NAME";
-  this->Arguments[ctb_LAST] = CM_NULLPTR;
+  this->Arguments[ctb_LAST] = nullptr;
   this->Last = ctb_LAST;
 }
 
@@ -32,7 +32,7 @@ cmCTestBuildCommand::~cmCTestBuildCommand()
 {
   if (this->GlobalGenerator) {
     delete this->GlobalGenerator;
-    this->GlobalGenerator = CM_NULLPTR;
+    this->GlobalGenerator = nullptr;
   }
 }
 
@@ -41,7 +41,7 @@ cmCTestGenericHandler* cmCTestBuildCommand::InitializeHandler()
   cmCTestGenericHandler* handler = this->CTest->GetInitializedHandler("build");
   if (!handler) {
     this->SetError("internal CTest error. Cannot instantiate build handler");
-    return CM_NULLPTR;
+    return nullptr;
   }
   this->Handler = (cmCTestBuildHandler*)handler;
 
@@ -89,7 +89,7 @@ cmCTestGenericHandler* cmCTestBuildCommand::InitializeHandler()
       if (this->GlobalGenerator) {
         if (this->GlobalGenerator->GetName() != cmakeGeneratorName) {
           delete this->GlobalGenerator;
-          this->GlobalGenerator = CM_NULLPTR;
+          this->GlobalGenerator = nullptr;
         }
       }
       if (!this->GlobalGenerator) {
@@ -102,11 +102,11 @@ cmCTestGenericHandler* cmCTestBuildCommand::InitializeHandler()
           e += "\"";
           this->Makefile->IssueMessage(cmake::FATAL_ERROR, e);
           cmSystemTools::SetFatalErrorOccured();
-          return CM_NULLPTR;
+          return nullptr;
         }
       }
       if (strlen(cmakeBuildConfiguration) == 0) {
-        const char* config = CM_NULLPTR;
+        const char* config = nullptr;
 #ifdef CMAKE_INTDIR
         config = CMAKE_INTDIR;
 #endif
@@ -143,7 +143,7 @@ cmCTestGenericHandler* cmCTestBuildCommand::InitializeHandler()
         "with a custom command line.";
       /* clang-format on */
       this->SetError(ostr.str());
-      return CM_NULLPTR;
+      return nullptr;
     }
   }
 
diff --git a/Source/CTest/cmCTestBuildHandler.cxx b/Source/CTest/cmCTestBuildHandler.cxx
index f9116e3..3762e13 100644
--- a/Source/CTest/cmCTestBuildHandler.cxx
+++ b/Source/CTest/cmCTestBuildHandler.cxx
@@ -74,7 +74,7 @@ static const char* cmCTestErrorMatches[] = {
   "^The project cannot be built\\.",
   "^\\[ERROR\\]",
   "^Command .* failed with exit code",
-  CM_NULLPTR
+  nullptr
 };
 
 static const char* cmCTestErrorExceptions[] = {
@@ -89,7 +89,7 @@ static const char* cmCTestErrorExceptions[] = {
   ":[ \\t]+Where:",
   "([^ :]+):([0-9]+): Warning",
   "------ Build started: .* ------",
-  CM_NULLPTR
+  nullptr
 };
 
 static const char* cmCTestWarningMatches[] = {
@@ -114,7 +114,7 @@ static const char* cmCTestWarningMatches[] = {
   "cc-[0-9]* CC: REMARK File = .*, Line = [0-9]*",
   "^CMake Warning.*:",
   "^\\[WARNING\\]",
-  CM_NULLPTR
+  nullptr
 };
 
 static const char* cmCTestWarningExceptions[] = {
@@ -134,7 +134,7 @@ static const char* cmCTestWarningExceptions[] = {
   "ld32: WARNING 85: definition of dataKey in",
   "cc: warning 422: Unknown option \"\\+b",
   "_with_warning_C",
-  CM_NULLPTR
+  nullptr
 };
 
 struct cmCTestBuildCompileErrorWarningRex
@@ -152,7 +152,7 @@ static cmCTestBuildCompileErrorWarningRex cmCTestWarningErrorFileLine[] = {
   { "^([a-zA-Z./0-9_+ ~-]+)\\(([0-9]+)\\)", 1, 2 },
   { "\"([a-zA-Z./0-9_+ ~-]+)\", line ([0-9]+)", 1, 2 },
   { "File = ([a-zA-Z./0-9_+ ~-]+), Line = ([0-9]+)", 1, 2 },
-  { CM_NULLPTR, 0, 0 }
+  { nullptr, 0, 0 }
 };
 
 cmCTestBuildHandler::cmCTestBuildHandler()
@@ -504,7 +504,7 @@ public:
   {
   }
   FragmentCompare()
-    : FTC(CM_NULLPTR)
+    : FTC(nullptr)
   {
   }
   bool operator()(std::string const& l, std::string const& r) const
@@ -781,7 +781,7 @@ int cmCTestBuildHandler::RunMakeCommand(const char* command, int* retVal,
        a != args.end(); ++a) {
     argv.push_back(a->c_str());
   }
-  argv.push_back(CM_NULLPTR);
+  argv.push_back(nullptr);
 
   cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT, "Run command:",
                      this->Quiet);
@@ -835,7 +835,7 @@ int cmCTestBuildHandler::RunMakeCommand(const char* command, int* retVal,
 
   // For every chunk of data
   int res;
-  while ((res = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR))) {
+  while ((res = cmsysProcess_WaitForData(cp, &data, &length, nullptr))) {
     // Replace '\0' with '\n', since '\0' does not really make sense. This is
     // for Visual Studio output
     for (int cc = 0; cc < length; ++cc) {
@@ -866,9 +866,9 @@ int cmCTestBuildHandler::RunMakeCommand(const char* command, int* retVal,
                         &this->BuildProcessingQueue);
   }
 
-  this->ProcessBuffer(CM_NULLPTR, 0, tick, tick_len, ofs,
+  this->ProcessBuffer(nullptr, 0, tick, tick_len, ofs,
                       &this->BuildProcessingQueue);
-  this->ProcessBuffer(CM_NULLPTR, 0, tick, tick_len, ofs,
+  this->ProcessBuffer(nullptr, 0, tick, tick_len, ofs,
                       &this->BuildProcessingErrorQueue);
   cmCTestOptionalLog(this->CTest, HANDLER_PROGRESS_OUTPUT, " Size of output: "
                        << ((this->BuildOutputLogSize + 512) / 1024) << "K"
@@ -876,7 +876,7 @@ int cmCTestBuildHandler::RunMakeCommand(const char* command, int* retVal,
                      this->Quiet);
 
   // Properly handle output of the build command
-  cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+  cmsysProcess_WaitForExit(cp, nullptr);
   int result = cmsysProcess_GetState(cp);
 
   if (result == cmsysProcess_State_Exited) {
diff --git a/Source/CTest/cmCTestCVS.cxx b/Source/CTest/cmCTestCVS.cxx
index fad360b..f2a9a85 100644
--- a/Source/CTest/cmCTestCVS.cxx
+++ b/Source/CTest/cmCTestCVS.cxx
@@ -96,7 +96,7 @@ bool cmCTestCVS::UpdateImpl()
        ai != args.end(); ++ai) {
     cvs_update.push_back(ai->c_str());
   }
-  cvs_update.push_back(CM_NULLPTR);
+  cvs_update.push_back(nullptr);
 
   UpdateParser out(this, "up-out> ");
   UpdateParser err(this, "up-err> ");
@@ -221,8 +221,9 @@ void cmCTestCVS::LoadRevisions(std::string const& file, const char* branchFlag,
 
   // Run "cvs log" to get revisions of this file on this branch.
   const char* cvs = this->CommandLineTool.c_str();
-  const char* cvs_log[] = { cvs,        "log",        "-N",
-                            branchFlag, file.c_str(), CM_NULLPTR };
+  const char* cvs_log[] = {
+    cvs, "log", "-N", branchFlag, file.c_str(), nullptr
+  };
 
   LogParser out(this, "log-out> ", revisions);
   OutputLogger err(this->Log, "log-err> ");
diff --git a/Source/CTest/cmCTestCommand.h b/Source/CTest/cmCTestCommand.h
index 6fc237a..8efb419 100644
--- a/Source/CTest/cmCTestCommand.h
+++ b/Source/CTest/cmCTestCommand.h
@@ -20,8 +20,8 @@ class cmCTestCommand : public cmCommand
 public:
   cmCTestCommand()
   {
-    this->CTest = CM_NULLPTR;
-    this->CTestScriptHandler = CM_NULLPTR;
+    this->CTest = nullptr;
+    this->CTestScriptHandler = nullptr;
   }
 
   cmCTest* CTest;
diff --git a/Source/CTest/cmCTestConfigureCommand.cxx b/Source/CTest/cmCTestConfigureCommand.cxx
index aca5bd3..faa75d3 100644
--- a/Source/CTest/cmCTestConfigureCommand.cxx
+++ b/Source/CTest/cmCTestConfigureCommand.cxx
@@ -16,7 +16,7 @@
 cmCTestConfigureCommand::cmCTestConfigureCommand()
 {
   this->Arguments[ctc_OPTIONS] = "OPTIONS";
-  this->Arguments[ctc_LAST] = CM_NULLPTR;
+  this->Arguments[ctc_LAST] = nullptr;
   this->Last = ctc_LAST;
 }
 
@@ -33,7 +33,7 @@ cmCTestGenericHandler* cmCTestConfigureCommand::InitializeHandler()
       "Build directory not specified. Either use BUILD "
       "argument to CTEST_CONFIGURE command or set CTEST_BINARY_DIRECTORY "
       "variable");
-    return CM_NULLPTR;
+    return nullptr;
   }
 
   const char* ctestConfigureCommand =
@@ -53,7 +53,7 @@ cmCTestGenericHandler* cmCTestConfigureCommand::InitializeHandler()
           "Source directory not specified. Either use SOURCE "
           "argument to CTEST_CONFIGURE command or set CTEST_SOURCE_DIRECTORY "
           "variable");
-        return CM_NULLPTR;
+        return nullptr;
       }
 
       const std::string cmakelists_file = source_dir + "/CMakeLists.txt";
@@ -61,7 +61,7 @@ cmCTestGenericHandler* cmCTestConfigureCommand::InitializeHandler()
         std::ostringstream e;
         e << "CMakeLists.txt file does not exist [" << cmakelists_file << "]";
         this->SetError(e.str());
-        return CM_NULLPTR;
+        return nullptr;
       }
 
       bool multiConfig = false;
@@ -88,9 +88,8 @@ cmCTestGenericHandler* cmCTestConfigureCommand::InitializeHandler()
         cmakeConfigureCommand += option;
         cmakeConfigureCommand += "\"";
 
-        if ((CM_NULLPTR != strstr(option.c_str(), "CMAKE_BUILD_TYPE=")) ||
-            (CM_NULLPTR !=
-             strstr(option.c_str(), "CMAKE_BUILD_TYPE:STRING="))) {
+        if ((nullptr != strstr(option.c_str(), "CMAKE_BUILD_TYPE=")) ||
+            (nullptr != strstr(option.c_str(), "CMAKE_BUILD_TYPE:STRING="))) {
           cmakeBuildTypeInOptions = true;
         }
       }
@@ -137,7 +136,7 @@ cmCTestGenericHandler* cmCTestConfigureCommand::InitializeHandler()
         "Configure command is not specified. If this is a "
         "\"built with CMake\" project, set CTEST_CMAKE_GENERATOR. If not, "
         "set CTEST_CONFIGURE_COMMAND.");
-      return CM_NULLPTR;
+      return nullptr;
     }
   }
 
@@ -152,7 +151,7 @@ cmCTestGenericHandler* cmCTestConfigureCommand::InitializeHandler()
   if (!handler) {
     this->SetError(
       "internal CTest error. Cannot instantiate configure handler");
-    return CM_NULLPTR;
+    return nullptr;
   }
   handler->SetQuiet(this->Quiet);
   return handler;
diff --git a/Source/CTest/cmCTestCoverageCommand.cxx b/Source/CTest/cmCTestCoverageCommand.cxx
index 535da58..d2003ba 100644
--- a/Source/CTest/cmCTestCoverageCommand.cxx
+++ b/Source/CTest/cmCTestCoverageCommand.cxx
@@ -23,7 +23,7 @@ cmCTestGenericHandler* cmCTestCoverageCommand::InitializeHandler()
     this->CTest->GetInitializedHandler("coverage"));
   if (!handler) {
     this->SetError("internal CTest error. Cannot instantiate test handler");
-    return CM_NULLPTR;
+    return nullptr;
   }
 
   // If a LABELS option was given, select only files with the labels.
diff --git a/Source/CTest/cmCTestCoverageHandler.cxx b/Source/CTest/cmCTestCoverageHandler.cxx
index 877cd24..e3d68c6 100644
--- a/Source/CTest/cmCTestCoverageHandler.cxx
+++ b/Source/CTest/cmCTestCoverageHandler.cxx
@@ -72,7 +72,7 @@ public:
          i != this->CommandLineStrings.end(); ++i) {
       args.push_back(i->c_str());
     }
-    args.push_back(CM_NULLPTR); // null terminate
+    args.push_back(nullptr); // null terminate
     cmsysProcess_SetCommand(this->Process, &*args.begin());
     if (!this->WorkingDirectory.empty()) {
       cmsysProcess_SetWorkingDirectory(this->Process,
@@ -97,7 +97,7 @@ public:
   {
     cmsysProcess_SetPipeFile(this->Process, cmsysProcess_Pipe_STDERR, fname);
   }
-  int WaitForExit(double* timeout = CM_NULLPTR)
+  int WaitForExit(double* timeout = nullptr)
   {
     this->PipeState = cmsysProcess_WaitForExit(this->Process, timeout);
     return this->PipeState;
@@ -1759,7 +1759,7 @@ const char* bullseyeHelp[] = {
   "      condition evaluated true or false, respectively.",
   "    * A k indicates a constant decision or condition.",
   "    * The slash / means this probe is excluded from summary results. ",
-  CM_NULLPTR
+  nullptr
 };
 }
 
@@ -1787,7 +1787,7 @@ int cmCTestCoverageHandler::RunBullseyeCoverageBranch(
   cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
                      "run covbr: " << std::endl, this->Quiet);
 
-  if (!this->RunBullseyeCommand(cont, "covbr", CM_NULLPTR, outputFile)) {
+  if (!this->RunBullseyeCommand(cont, "covbr", nullptr, outputFile)) {
     cmCTestLog(this->CTest, ERROR_MESSAGE, "error running covbr for."
                  << "\n");
     return -1;
@@ -1860,7 +1860,7 @@ int cmCTestCoverageHandler::RunBullseyeCoverageBranch(
         covLogXML.StartElement("Report");
         // write the bullseye header
         line = 0;
-        for (int k = 0; bullseyeHelp[k] != CM_NULLPTR; ++k) {
+        for (int k = 0; bullseyeHelp[k] != nullptr; ++k) {
           covLogXML.StartElement("Line");
           covLogXML.Attribute("Number", line);
           covLogXML.Attribute("Count", -1);
diff --git a/Source/CTest/cmCTestCurl.cxx b/Source/CTest/cmCTestCurl.cxx
index b80ea5a..b0b9923 100644
--- a/Source/CTest/cmCTestCurl.cxx
+++ b/Source/CTest/cmCTestCurl.cxx
@@ -145,7 +145,7 @@ bool cmCTestCurl::UploadFile(std::string const& local_file,
   ::curl_easy_setopt(this->Curl, CURLOPT_DEBUGFUNCTION, curlDebugCallback);
   // Set Content-Type to satisfy fussy modsecurity rules.
   struct curl_slist* headers =
-    ::curl_slist_append(CM_NULLPTR, "Content-Type: text/xml");
+    ::curl_slist_append(nullptr, "Content-Type: text/xml");
   // Add any additional headers that the user specified.
   for (std::vector<std::string>::const_iterator h = this->HttpHeaders.begin();
        h != this->HttpHeaders.end(); ++h) {
@@ -212,7 +212,7 @@ bool cmCTestCurl::HttpRequest(std::string const& url,
   ::curl_easy_setopt(this->Curl, CURLOPT_FAILONERROR, 1);
 
   // Add headers if any were specified.
-  struct curl_slist* headers = CM_NULLPTR;
+  struct curl_slist* headers = nullptr;
   if (!this->HttpHeaders.empty()) {
     for (std::vector<std::string>::const_iterator h =
            this->HttpHeaders.begin();
diff --git a/Source/CTest/cmCTestGIT.cxx b/Source/CTest/cmCTestGIT.cxx
index 230aedf..8c27045 100644
--- a/Source/CTest/cmCTestGIT.cxx
+++ b/Source/CTest/cmCTestGIT.cxx
@@ -58,8 +58,8 @@ std::string cmCTestGIT::GetWorkingRevision()
 {
   // Run plumbing "git rev-list" to get work tree revision.
   const char* git = this->CommandLineTool.c_str();
-  const char* git_rev_list[] = { git,    "rev-list", "-n",      "1",
-                                 "HEAD", "--",       CM_NULLPTR };
+  const char* git_rev_list[] = { git,    "rev-list", "-n",   "1",
+                                 "HEAD", "--",       nullptr };
   std::string rev;
   OneLineParser out(this, "rl-out> ", rev);
   OutputLogger err(this->Log, "rl-err> ");
@@ -90,11 +90,11 @@ std::string cmCTestGIT::FindGitDir()
 
   // Run "git rev-parse --git-dir" to locate the real .git directory.
   const char* git = this->CommandLineTool.c_str();
-  char const* git_rev_parse[] = { git, "rev-parse", "--git-dir", CM_NULLPTR };
+  char const* git_rev_parse[] = { git, "rev-parse", "--git-dir", nullptr };
   std::string git_dir_line;
   OneLineParser rev_parse_out(this, "rev-parse-out> ", git_dir_line);
   OutputLogger rev_parse_err(this->Log, "rev-parse-err> ");
-  if (this->RunChild(git_rev_parse, &rev_parse_out, &rev_parse_err, CM_NULLPTR,
+  if (this->RunChild(git_rev_parse, &rev_parse_out, &rev_parse_err, nullptr,
                      cmProcessOutput::UTF8)) {
     git_dir = git_dir_line;
   }
@@ -118,7 +118,7 @@ std::string cmCTestGIT::FindGitDir()
                                 0 };
       OneLineParser cygpath_out(this, "cygpath-out> ", git_dir_line);
       OutputLogger cygpath_err(this->Log, "cygpath-err> ");
-      if (this->RunChild(cygpath, &cygpath_out, &cygpath_err, CM_NULLPTR,
+      if (this->RunChild(cygpath, &cygpath_out, &cygpath_err, nullptr,
                          cmProcessOutput::UTF8)) {
         git_dir = git_dir_line;
       }
@@ -134,12 +134,11 @@ std::string cmCTestGIT::FindTopDir()
 
   // Run "git rev-parse --show-cdup" to locate the top of the tree.
   const char* git = this->CommandLineTool.c_str();
-  char const* git_rev_parse[] = { git, "rev-parse", "--show-cdup",
-                                  CM_NULLPTR };
+  char const* git_rev_parse[] = { git, "rev-parse", "--show-cdup", nullptr };
   std::string cdup;
   OneLineParser rev_parse_out(this, "rev-parse-out> ", cdup);
   OutputLogger rev_parse_err(this->Log, "rev-parse-err> ");
-  if (this->RunChild(git_rev_parse, &rev_parse_out, &rev_parse_err, CM_NULLPTR,
+  if (this->RunChild(git_rev_parse, &rev_parse_out, &rev_parse_err, nullptr,
                      cmProcessOutput::UTF8) &&
       !cdup.empty()) {
     top_dir += "/";
@@ -170,7 +169,7 @@ bool cmCTestGIT::UpdateByFetchAndReset()
   }
 
   // Sentinel argument.
-  git_fetch.push_back(CM_NULLPTR);
+  git_fetch.push_back(nullptr);
 
   // Fetch upstream refs.
   OutputLogger fetch_out(this->Log, "fetch-out> ");
@@ -205,8 +204,7 @@ bool cmCTestGIT::UpdateByFetchAndReset()
   }
 
   // Reset the local branch to point at that tracked from upstream.
-  char const* git_reset[] = { git, "reset", "--hard", sha1.c_str(),
-                              CM_NULLPTR };
+  char const* git_reset[] = { git, "reset", "--hard", sha1.c_str(), nullptr };
   OutputLogger reset_out(this->Log, "reset-out> ");
   OutputLogger reset_err(this->Log, "reset-err> ");
   return this->RunChild(&git_reset[0], &reset_out, &reset_err);
@@ -221,7 +219,7 @@ bool cmCTestGIT::UpdateByCustom(std::string const& custom)
        i != git_custom_command.end(); ++i) {
     git_custom.push_back(i->c_str());
   }
-  git_custom.push_back(CM_NULLPTR);
+  git_custom.push_back(nullptr);
 
   OutputLogger custom_out(this->Log, "custom-out> ");
   OutputLogger custom_err(this->Log, "custom-err> ");
@@ -250,7 +248,7 @@ bool cmCTestGIT::UpdateImpl()
 
   // Git < 1.6.5 did not support submodule --recursive
   if (this->GetGitVersion() < cmCTestGITVersion(1, 6, 5, 0)) {
-    recursive = CM_NULLPTR;
+    recursive = nullptr;
     // No need to require >= 1.6.5 if there are no submodules.
     if (cmSystemTools::FileExists((top_dir + "/.gitmodules").c_str())) {
       this->Log << "Git < 1.6.5 cannot update submodules recursively\n";
@@ -259,7 +257,7 @@ bool cmCTestGIT::UpdateImpl()
 
   // Git < 1.8.1 did not support sync --recursive
   if (this->GetGitVersion() < cmCTestGITVersion(1, 8, 1, 0)) {
-    sync_recursive = CM_NULLPTR;
+    sync_recursive = nullptr;
     // No need to require >= 1.8.1 if there are no submodules.
     if (cmSystemTools::FileExists((top_dir + "/.gitmodules").c_str())) {
       this->Log << "Git < 1.8.1 cannot synchronize submodules recursively\n";
@@ -274,8 +272,7 @@ bool cmCTestGIT::UpdateImpl()
   std::string init_submodules =
     this->CTest->GetCTestConfiguration("GITInitSubmodules");
   if (cmSystemTools::IsOn(init_submodules.c_str())) {
-    char const* git_submodule_init[] = { git, "submodule", "init",
-                                         CM_NULLPTR };
+    char const* git_submodule_init[] = { git, "submodule", "init", nullptr };
     ret = this->RunChild(git_submodule_init, &submodule_out, &submodule_err,
                          top_dir.c_str());
 
@@ -285,7 +282,7 @@ bool cmCTestGIT::UpdateImpl()
   }
 
   char const* git_submodule_sync[] = { git, "submodule", "sync",
-                                       sync_recursive, CM_NULLPTR };
+                                       sync_recursive, nullptr };
   ret = this->RunChild(git_submodule_sync, &submodule_out, &submodule_err,
                        top_dir.c_str());
 
@@ -294,7 +291,7 @@ bool cmCTestGIT::UpdateImpl()
   }
 
   char const* git_submodule[] = { git, "submodule", "update", recursive,
-                                  CM_NULLPTR };
+                                  nullptr };
   return this->RunChild(git_submodule, &submodule_out, &submodule_err,
                         top_dir.c_str());
 }
@@ -303,7 +300,7 @@ unsigned int cmCTestGIT::GetGitVersion()
 {
   if (!this->CurrentGitVersion) {
     const char* git = this->CommandLineTool.c_str();
-    char const* git_version[] = { git, "--version", CM_NULLPTR };
+    char const* git_version[] = { git, "--version", nullptr };
     std::string version;
     OneLineParser version_out(this, "version-out> ", version);
     OutputLogger version_err(this->Log, "version-err> ");
@@ -615,10 +612,10 @@ bool cmCTestGIT::LoadRevisions()
   std::string range = this->OldRevision + ".." + this->NewRevision;
   const char* git = this->CommandLineTool.c_str();
   const char* git_rev_list[] = { git,           "rev-list", "--reverse",
-                                 range.c_str(), "--",       CM_NULLPTR };
+                                 range.c_str(), "--",       nullptr };
   const char* git_diff_tree[] = {
     git,  "diff-tree",    "--stdin",          "--always", "-z",
-    "-r", "--pretty=raw", "--encoding=utf-8", CM_NULLPTR
+    "-r", "--pretty=raw", "--encoding=utf-8", nullptr
   };
   this->Log << this->ComputeCommandLine(git_rev_list) << " | "
             << this->ComputeCommandLine(git_diff_tree) << "\n";
@@ -645,19 +642,18 @@ bool cmCTestGIT::LoadModifications()
 
   // Use 'git update-index' to refresh the index w.r.t. the work tree.
   const char* git_update_index[] = { git, "update-index", "--refresh",
-                                     CM_NULLPTR };
+                                     nullptr };
   OutputLogger ui_out(this->Log, "ui-out> ");
   OutputLogger ui_err(this->Log, "ui-err> ");
-  this->RunChild(git_update_index, &ui_out, &ui_err, CM_NULLPTR,
+  this->RunChild(git_update_index, &ui_out, &ui_err, nullptr,
                  cmProcessOutput::UTF8);
 
   // Use 'git diff-index' to get modified files.
   const char* git_diff_index[] = { git,    "diff-index", "-z",
-                                   "HEAD", "--",         CM_NULLPTR };
+                                   "HEAD", "--",         nullptr };
   DiffParser out(this, "di-out> ");
   OutputLogger err(this->Log, "di-err> ");
-  this->RunChild(git_diff_index, &out, &err, CM_NULLPTR,
-                 cmProcessOutput::UTF8);
+  this->RunChild(git_diff_index, &out, &err, nullptr, cmProcessOutput::UTF8);
 
   for (std::vector<Change>::const_iterator ci = out.Changes.begin();
        ci != out.Changes.end(); ++ci) {
diff --git a/Source/CTest/cmCTestGenericHandler.cxx b/Source/CTest/cmCTestGenericHandler.cxx
index 19034c0..5729012 100644
--- a/Source/CTest/cmCTestGenericHandler.cxx
+++ b/Source/CTest/cmCTestGenericHandler.cxx
@@ -12,7 +12,7 @@
 cmCTestGenericHandler::cmCTestGenericHandler()
 {
   this->HandlerVerbose = cmSystemTools::OUTPUT_NONE;
-  this->CTest = CM_NULLPTR;
+  this->CTest = nullptr;
   this->SubmitIndex = 0;
   this->AppendXML = false;
   this->Quiet = false;
@@ -70,7 +70,7 @@ const char* cmCTestGenericHandler::GetOption(const std::string& op)
   cmCTestGenericHandler::t_StringToString::iterator remit =
     this->Options.find(op);
   if (remit == this->Options.end()) {
-    return CM_NULLPTR;
+    return nullptr;
   }
   return remit->second.c_str();
 }
diff --git a/Source/CTest/cmCTestHG.cxx b/Source/CTest/cmCTestHG.cxx
index 49f9a65..7bf5b67 100644
--- a/Source/CTest/cmCTestHG.cxx
+++ b/Source/CTest/cmCTestHG.cxx
@@ -96,7 +96,7 @@ std::string cmCTestHG::GetWorkingRevision()
 {
   // Run plumbing "hg identify" to get work tree revision.
   const char* hg = this->CommandLineTool.c_str();
-  const char* hg_identify[] = { hg, "identify", "-i", CM_NULLPTR };
+  const char* hg_identify[] = { hg, "identify", "-i", nullptr };
   std::string rev;
   IdentifyParser out(this, "rev-out> ", rev);
   OutputLogger err(this->Log, "rev-err> ");
@@ -126,7 +126,7 @@ bool cmCTestHG::UpdateImpl()
   // Use "hg pull" followed by "hg update" to update the working tree.
   {
     const char* hg = this->CommandLineTool.c_str();
-    const char* hg_pull[] = { hg, "pull", "-v", CM_NULLPTR };
+    const char* hg_pull[] = { hg, "pull", "-v", nullptr };
     OutputLogger out(this->Log, "pull-out> ");
     OutputLogger err(this->Log, "pull-err> ");
     this->RunChild(&hg_pull[0], &out, &err);
@@ -151,7 +151,7 @@ bool cmCTestHG::UpdateImpl()
   }
 
   // Sentinel argument.
-  hg_update.push_back(CM_NULLPTR);
+  hg_update.push_back(nullptr);
 
   OutputLogger out(this->Log, "update-out> ");
   OutputLogger err(this->Log, "update-err> ");
@@ -286,7 +286,7 @@ bool cmCTestHG::LoadRevisions()
                               "</logentry>\n";
   const char* hg_log[] = {
     hg,           "log",         "--removed", "-r", range.c_str(),
-    "--template", hgXMLTemplate, CM_NULLPTR
+    "--template", hgXMLTemplate, nullptr
   };
 
   LogParser out(this, "log-out> ");
@@ -302,7 +302,7 @@ bool cmCTestHG::LoadModifications()
 {
   // Use 'hg status' to get modified files.
   const char* hg = this->CommandLineTool.c_str();
-  const char* hg_status[] = { hg, "status", CM_NULLPTR };
+  const char* hg_status[] = { hg, "status", nullptr };
   StatusParser out(this, "status-out> ");
   OutputLogger err(this->Log, "status-err> ");
   this->RunChild(hg_status, &out, &err);
diff --git a/Source/CTest/cmCTestHandlerCommand.cxx b/Source/CTest/cmCTestHandlerCommand.cxx
index c99e450..9266d1f 100644
--- a/Source/CTest/cmCTestHandlerCommand.cxx
+++ b/Source/CTest/cmCTestHandlerCommand.cxx
@@ -20,7 +20,7 @@ cmCTestHandlerCommand::cmCTestHandlerCommand()
   size_t cc;
   this->Arguments.reserve(INIT_SIZE);
   for (cc = 0; cc < INIT_SIZE; ++cc) {
-    this->Arguments.push_back(CM_NULLPTR);
+    this->Arguments.push_back(nullptr);
   }
   this->Arguments[ct_RETURN_VALUE] = "RETURN_VALUE";
   this->Arguments[ct_CAPTURE_CMAKE_ERROR] = "CAPTURE_CMAKE_ERROR";
@@ -89,7 +89,7 @@ bool cmCTestHandlerCommand::InitialPass(std::vector<std::string> const& args,
   SaveRestoreErrorState errorState;
   // Allocate space for argument values.
   this->Values.clear();
-  this->Values.resize(this->Last, CM_NULLPTR);
+  this->Values.resize(this->Last, nullptr);
 
   // Process input arguments.
   this->ArgumentDoing = ArgumentDoingNone;
diff --git a/Source/CTest/cmCTestLaunch.cxx b/Source/CTest/cmCTestLaunch.cxx
index 9be8696..8d32f2e 100644
--- a/Source/CTest/cmCTestLaunch.cxx
+++ b/Source/CTest/cmCTestLaunch.cxx
@@ -31,7 +31,7 @@
 cmCTestLaunch::cmCTestLaunch(int argc, const char* const* argv)
 {
   this->Passthru = true;
-  this->Process = CM_NULLPTR;
+  this->Process = nullptr;
   this->ExitCode = 1;
   this->CWD = cmSystemTools::GetCurrentWorkingDirectory();
 
@@ -129,7 +129,7 @@ bool cmCTestLaunch::ParseArguments(int argc, const char* const* argv)
     return true;
   }
   this->RealArgC = 0;
-  this->RealArgV = CM_NULLPTR;
+  this->RealArgV = nullptr;
   std::cerr << "No launch/command separator ('--') found!\n";
   return false;
 }
@@ -224,11 +224,11 @@ void cmCTestLaunch::RunChild()
 
   // Record child stdout and stderr if necessary.
   if (!this->Passthru) {
-    char* data = CM_NULLPTR;
+    char* data = nullptr;
     int length = 0;
     cmProcessOutput processOutput;
     std::string strdata;
-    while (int p = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR)) {
+    while (int p = cmsysProcess_WaitForData(cp, &data, &length, nullptr)) {
       if (p == cmsysProcess_Pipe_STDOUT) {
         processOutput.DecodeText(data, length, strdata, 1);
         fout.write(strdata.c_str(), strdata.size());
@@ -254,7 +254,7 @@ void cmCTestLaunch::RunChild()
   }
 
   // Wait for the real command to finish.
-  cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+  cmsysProcess_WaitForExit(cp, nullptr);
   this->ExitCode = cmsysProcess_GetExitValue(cp);
 }
 
@@ -396,7 +396,7 @@ void cmCTestLaunch::WriteXMLAction(cmXMLWriter& xml)
   }
 
   // OutputType
-  const char* outputType = CM_NULLPTR;
+  const char* outputType = nullptr;
   if (!this->OptionTargetType.empty()) {
     if (this->OptionTargetType == "EXECUTABLE") {
       outputType = "executable";
diff --git a/Source/CTest/cmCTestMemCheckCommand.cxx b/Source/CTest/cmCTestMemCheckCommand.cxx
index b9cae3b..a5d5995 100644
--- a/Source/CTest/cmCTestMemCheckCommand.cxx
+++ b/Source/CTest/cmCTestMemCheckCommand.cxx
@@ -14,7 +14,7 @@
 cmCTestMemCheckCommand::cmCTestMemCheckCommand()
 {
   this->Arguments[ctm_DEFECT_COUNT] = "DEFECT_COUNT";
-  this->Arguments[ctm_LAST] = CM_NULLPTR;
+  this->Arguments[ctm_LAST] = nullptr;
   this->Last = ctm_LAST;
 }
 
diff --git a/Source/CTest/cmCTestMemCheckHandler.cxx b/Source/CTest/cmCTestMemCheckHandler.cxx
index 6026a2a..848e505 100644
--- a/Source/CTest/cmCTestMemCheckHandler.cxx
+++ b/Source/CTest/cmCTestMemCheckHandler.cxx
@@ -28,7 +28,7 @@ static CatToErrorType cmCTestMemCheckBoundsChecker[] = {
   { "Allocation Conflict", cmCTestMemCheckHandler::FMM },
   { "Bad Pointer Use", cmCTestMemCheckHandler::FMW },
   { "Dangling Pointer", cmCTestMemCheckHandler::FMR },
-  { CM_NULLPTR, 0 }
+  { nullptr, 0 }
 };
 
 static void xmlReportError(int line, const char* msg, void* data)
@@ -58,7 +58,7 @@ public:
     std::ostringstream ostr;
     ostr << name << ":\n";
     int i = 0;
-    for (; atts[i] != CM_NULLPTR; i += 2) {
+    for (; atts[i] != nullptr; i += 2) {
       ostr << "   " << atts[i] << " - " << atts[i + 1] << "\n";
     }
     ostr << "\n";
@@ -69,12 +69,12 @@ public:
   const char* GetAttribute(const char* name, const char** atts)
   {
     int i = 0;
-    for (; atts[i] != CM_NULLPTR; ++i) {
+    for (; atts[i] != nullptr; ++i) {
       if (strcmp(name, atts[i]) == 0) {
         return atts[i + 1];
       }
     }
-    return CM_NULLPTR;
+    return nullptr;
   }
   void ParseError(const char** atts)
   {
@@ -228,9 +228,9 @@ void cmCTestMemCheckHandler::InitializeResultsVectors()
   // define the standard set of errors
   //----------------------------------------------------------------------
   static const char* cmCTestMemCheckResultStrings[] = {
-    "ABR", "ABW", "ABWL", "COR", "EXU", "FFM", "FIM",     "FMM",
-    "FMR", "FMW", "FUM",  "IPR", "IPW", "MAF", "MLK",     "MPK",
-    "NPR", "ODS", "PAR",  "PLK", "UMC", "UMR", CM_NULLPTR
+    "ABR", "ABW", "ABWL", "COR", "EXU", "FFM", "FIM",  "FMM",
+    "FMR", "FMW", "FUM",  "IPR", "IPW", "MAF", "MLK",  "MPK",
+    "NPR", "ODS", "PAR",  "PLK", "UMC", "UMR", nullptr
   };
   static const char* cmCTestMemCheckResultLongStrings[] = {
     "Threading Problem",
@@ -255,10 +255,10 @@ void cmCTestMemCheckHandler::InitializeResultsVectors()
     "PLK",
     "Uninitialized Memory Conditional",
     "Uninitialized Memory Read",
-    CM_NULLPTR
+    nullptr
   };
   this->GlobalResults.clear();
-  for (int i = 0; cmCTestMemCheckResultStrings[i] != CM_NULLPTR; ++i) {
+  for (int i = 0; cmCTestMemCheckResultStrings[i] != nullptr; ++i) {
     this->ResultStrings.push_back(cmCTestMemCheckResultStrings[i]);
     this->ResultStringsLong.push_back(cmCTestMemCheckResultLongStrings[i]);
     this->GlobalResults.push_back(0);
diff --git a/Source/CTest/cmCTestP4.cxx b/Source/CTest/cmCTestP4.cxx
index c802216..ab057ad 100644
--- a/Source/CTest/cmCTestP4.cxx
+++ b/Source/CTest/cmCTestP4.cxx
@@ -155,7 +155,7 @@ cmCTestP4::User cmCTestP4::GetUserData(const std::string& username)
     p4_users.push_back("-m");
     p4_users.push_back("1");
     p4_users.push_back(username.c_str());
-    p4_users.push_back(CM_NULLPTR);
+    p4_users.push_back(nullptr);
 
     UserParser out(this, "users-out> ");
     OutputLogger err(this->Log, "users-err> ");
@@ -350,7 +350,7 @@ std::string cmCTestP4::GetWorkingRevision()
 
   std::string source = this->SourceDirectory + "/...#have";
   p4_identify.push_back(source.c_str());
-  p4_identify.push_back(CM_NULLPTR);
+  p4_identify.push_back(nullptr);
 
   std::string rev;
   IdentifyParser out(this, "p4_changes-out> ", rev);
@@ -411,7 +411,7 @@ bool cmCTestP4::LoadRevisions()
 
   p4_changes.push_back("changes");
   p4_changes.push_back(range.c_str());
-  p4_changes.push_back(CM_NULLPTR);
+  p4_changes.push_back(nullptr);
 
   ChangesParser out(this, "p4_changes-out> ");
   OutputLogger err(this->Log, "p4_changes-err> ");
@@ -431,7 +431,7 @@ bool cmCTestP4::LoadRevisions()
     p4_describe.push_back("describe");
     p4_describe.push_back("-s");
     p4_describe.push_back(i->c_str());
-    p4_describe.push_back(CM_NULLPTR);
+    p4_describe.push_back(nullptr);
 
     DescribeParser outDescribe(this, "p4_describe-out> ");
     OutputLogger errDescribe(this->Log, "p4_describe-err> ");
@@ -451,7 +451,7 @@ bool cmCTestP4::LoadModifications()
   p4_diff.push_back("-dn");
   std::string source = this->SourceDirectory + "/...";
   p4_diff.push_back(source.c_str());
-  p4_diff.push_back(CM_NULLPTR);
+  p4_diff.push_back(nullptr);
 
   DiffParser out(this, "p4_diff-out> ");
   OutputLogger err(this->Log, "p4_diff-err> ");
@@ -469,7 +469,7 @@ bool cmCTestP4::UpdateCustom(const std::string& custom)
        i != p4_custom_command.end(); ++i) {
     p4_custom.push_back(i->c_str());
   }
-  p4_custom.push_back(CM_NULLPTR);
+  p4_custom.push_back(nullptr);
 
   OutputLogger custom_out(this->Log, "p4_customsync-out> ");
   OutputLogger custom_err(this->Log, "p4_customsync-err> ");
@@ -520,7 +520,7 @@ bool cmCTestP4::UpdateImpl()
   }
 
   p4_sync.push_back(source.c_str());
-  p4_sync.push_back(CM_NULLPTR);
+  p4_sync.push_back(nullptr);
 
   OutputLogger out(this->Log, "p4_sync-out> ");
   OutputLogger err(this->Log, "p4_sync-err> ");
diff --git a/Source/CTest/cmCTestRunTest.cxx b/Source/CTest/cmCTestRunTest.cxx
index 9274c01..2c1198f 100644
--- a/Source/CTest/cmCTestRunTest.cxx
+++ b/Source/CTest/cmCTestRunTest.cxx
@@ -25,12 +25,12 @@ cmCTestRunTest::cmCTestRunTest(cmCTestTestHandler* handler)
 {
   this->CTest = handler->CTest;
   this->TestHandler = handler;
-  this->TestProcess = CM_NULLPTR;
+  this->TestProcess = nullptr;
   this->TestResult.ExecutionTime = 0;
   this->TestResult.ReturnValue = 0;
   this->TestResult.Status = cmCTestTestHandler::NOT_RUN;
   this->TestResult.TestCount = 0;
-  this->TestResult.Properties = CM_NULLPTR;
+  this->TestResult.Properties = nullptr;
   this->ProcessOutput = "";
   this->CompressedOutput = "";
   this->CompressionRatio = 2;
@@ -621,7 +621,7 @@ double cmCTestRunTest::ResolveTimeout()
     return timeout;
   }
   struct tm* lctime;
-  time_t current_time = time(CM_NULLPTR);
+  time_t current_time = time(nullptr);
   lctime = gmtime(&current_time);
   int gm_hour = lctime->tm_hour;
   time_t gm_time = mktime(lctime);
diff --git a/Source/CTest/cmCTestSVN.cxx b/Source/CTest/cmCTestSVN.cxx
index f60f78c..36582a2 100644
--- a/Source/CTest/cmCTestSVN.cxx
+++ b/Source/CTest/cmCTestSVN.cxx
@@ -290,7 +290,7 @@ bool cmCTestSVN::RunSVNCommand(std::vector<char const*> const& parameters,
     args.push_back(i->c_str());
   }
 
-  args.push_back(CM_NULLPTR);
+  args.push_back(nullptr);
 
   if (strcmp(parameters[0], "update") == 0) {
     return RunUpdateCommand(&args[0], out, err);
diff --git a/Source/CTest/cmCTestScriptHandler.cxx b/Source/CTest/cmCTestScriptHandler.cxx
index c566c5c..6fd24a5 100644
--- a/Source/CTest/cmCTestScriptHandler.cxx
+++ b/Source/CTest/cmCTestScriptHandler.cxx
@@ -75,9 +75,9 @@ cmCTestScriptHandler::cmCTestScriptHandler()
   this->Backup = false;
   this->EmptyBinDir = false;
   this->EmptyBinDirOnce = false;
-  this->Makefile = CM_NULLPTR;
-  this->CMake = CM_NULLPTR;
-  this->GlobalGenerator = CM_NULLPTR;
+  this->Makefile = nullptr;
+  this->CMake = nullptr;
+  this->GlobalGenerator = nullptr;
 
   this->ScriptStartTime = 0;
 
@@ -114,10 +114,10 @@ void cmCTestScriptHandler::Initialize()
   this->ScriptStartTime = 0;
 
   delete this->Makefile;
-  this->Makefile = CM_NULLPTR;
+  this->Makefile = nullptr;
 
   delete this->GlobalGenerator;
-  this->GlobalGenerator = CM_NULLPTR;
+  this->GlobalGenerator = nullptr;
 
   delete this->CMake;
 }
@@ -193,7 +193,7 @@ int cmCTestScriptHandler::ExecuteScript(const std::string& total_script_arg)
   for (size_t i = 1; i < initArgs.size(); ++i) {
     argv.push_back(initArgs[i].c_str());
   }
-  argv.push_back(CM_NULLPTR);
+  argv.push_back(nullptr);
 
   // Now create process object
   cmsysProcess* cp = cmsysProcess_New();
@@ -219,7 +219,7 @@ int cmCTestScriptHandler::ExecuteScript(const std::string& total_script_arg)
   }
 
   // Properly handle output of the build command
-  cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+  cmsysProcess_WaitForExit(cp, nullptr);
   int result = cmsysProcess_GetState(cp);
   int retVal = 0;
   bool failed = false;
@@ -852,7 +852,7 @@ bool cmCTestScriptHandler::WriteInitialCache(const char* directory,
     return false;
   }
 
-  if (text != CM_NULLPTR) {
+  if (text != nullptr) {
     fout.write(text, strlen(text));
   }
 
diff --git a/Source/CTest/cmCTestStartCommand.cxx b/Source/CTest/cmCTestStartCommand.cxx
index 01a874b..4f0d87b 100644
--- a/Source/CTest/cmCTestStartCommand.cxx
+++ b/Source/CTest/cmCTestStartCommand.cxx
@@ -29,12 +29,12 @@ bool cmCTestStartCommand::InitialPass(std::vector<std::string> const& args,
 
   size_t cnt = 0;
   const char* smodel = args[cnt].c_str();
-  const char* src_dir = CM_NULLPTR;
-  const char* bld_dir = CM_NULLPTR;
+  const char* src_dir = nullptr;
+  const char* bld_dir = nullptr;
 
   cnt++;
 
-  this->CTest->SetSpecificTrack(CM_NULLPTR);
+  this->CTest->SetSpecificTrack(nullptr);
   if (cnt < args.size() - 1) {
     if (args[cnt] == "TRACK") {
       cnt++;
diff --git a/Source/CTest/cmCTestSubmitCommand.cxx b/Source/CTest/cmCTestSubmitCommand.cxx
index 409eb51..1794ca6 100644
--- a/Source/CTest/cmCTestSubmitCommand.cxx
+++ b/Source/CTest/cmCTestSubmitCommand.cxx
@@ -86,7 +86,7 @@ cmCTestGenericHandler* cmCTestSubmitCommand::InitializeHandler()
                          extraFiles.end());
     if (!this->CTest->SubmitExtraFiles(newExtraFiles)) {
       this->SetError("problem submitting extra files.");
-      return CM_NULLPTR;
+      return nullptr;
     }
   }
 
@@ -94,7 +94,7 @@ cmCTestGenericHandler* cmCTestSubmitCommand::InitializeHandler()
     this->CTest->GetInitializedHandler("submit");
   if (!handler) {
     this->SetError("internal CTest error. Cannot instantiate submit handler");
-    return CM_NULLPTR;
+    return nullptr;
   }
 
   // If no FILES or PARTS given, *all* PARTS are submitted by default.
diff --git a/Source/CTest/cmCTestSubmitHandler.cxx b/Source/CTest/cmCTestSubmitHandler.cxx
index 689668d..5c67816 100644
--- a/Source/CTest/cmCTestSubmitHandler.cxx
+++ b/Source/CTest/cmCTestSubmitHandler.cxx
@@ -145,7 +145,7 @@ void cmCTestSubmitHandler::Initialize()
   this->HTTPProxyAuth = "";
   this->FTPProxy = "";
   this->FTPProxyType = 0;
-  this->LogFile = CM_NULLPTR;
+  this->LogFile = nullptr;
   this->Files.clear();
 }
 
@@ -304,7 +304,7 @@ bool cmCTestSubmitHandler::SubmitUsingHTTP(const std::string& localprefix,
   char error_buffer[1024];
   // Set Content-Type to satisfy fussy modsecurity rules.
   struct curl_slist* headers =
-    ::curl_slist_append(CM_NULLPTR, "Content-Type: text/xml");
+    ::curl_slist_append(nullptr, "Content-Type: text/xml");
 
   // Add any additional headers that the user specified.
   for (std::vector<std::string>::const_iterator h = this->HttpHeaders.begin();
@@ -495,10 +495,10 @@ bool cmCTestSubmitHandler::SubmitUsingHTTP(const std::string& localprefix,
       // If curl failed for any reason, or checksum fails, wait and retry
       //
       if (res != CURLE_OK || this->HasErrors) {
-        std::string retryDelay = this->GetOption("RetryDelay") == CM_NULLPTR
+        std::string retryDelay = this->GetOption("RetryDelay") == nullptr
           ? ""
           : this->GetOption("RetryDelay");
-        std::string retryCount = this->GetOption("RetryCount") == CM_NULLPTR
+        std::string retryCount = this->GetOption("RetryCount") == nullptr
           ? ""
           : this->GetOption("RetryCount");
 
@@ -764,7 +764,7 @@ bool cmCTestSubmitHandler::SubmitUsingSCP(const std::string& scp_command,
   argv.push_back(scp_command.c_str()); // Scp command
   argv.push_back(scp_command.c_str()); // Dummy string for file
   argv.push_back(scp_command.c_str()); // Dummy string for remote url
-  argv.push_back(CM_NULLPTR);
+  argv.push_back(nullptr);
 
   cmsysProcess* cp = cmsysProcess_New();
   cmsysProcess_SetOption(cp, cmsysProcess_Option_HideWindow, 1);
@@ -797,7 +797,7 @@ bool cmCTestSubmitHandler::SubmitUsingSCP(const std::string& scp_command,
     cmProcessOutput processOutput;
     std::string strdata;
 
-    while (cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR)) {
+    while (cmsysProcess_WaitForData(cp, &data, &length, nullptr)) {
       processOutput.DecodeText(data, length, strdata);
       cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
                          cmCTestLogWrite(strdata.c_str(), strdata.size()),
@@ -810,7 +810,7 @@ bool cmCTestSubmitHandler::SubmitUsingSCP(const std::string& scp_command,
                          this->Quiet);
     }
 
-    cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+    cmsysProcess_WaitForExit(cp, nullptr);
 
     int result = cmsysProcess_GetState(cp);
 
@@ -1036,10 +1036,10 @@ int cmCTestSubmitHandler::HandleCDashUploadFile(std::string const& file,
   bool internalTest = cmSystemTools::IsOn(this->GetOption("InternalTest"));
 
   // Get RETRY_COUNT and RETRY_DELAY values if they were set.
-  std::string retryDelayString = this->GetOption("RetryDelay") == CM_NULLPTR
+  std::string retryDelayString = this->GetOption("RetryDelay") == nullptr
     ? ""
     : this->GetOption("RetryDelay");
-  std::string retryCountString = this->GetOption("RetryCount") == CM_NULLPTR
+  std::string retryCountString = this->GetOption("RetryCount") == nullptr
     ? ""
     : this->GetOption("RetryCount");
   unsigned long retryDelay = 0;
diff --git a/Source/CTest/cmCTestSubmitHandler.h b/Source/CTest/cmCTestSubmitHandler.h
index 2923f4f..318920e 100644
--- a/Source/CTest/cmCTestSubmitHandler.h
+++ b/Source/CTest/cmCTestSubmitHandler.h
@@ -25,7 +25,7 @@ public:
   typedef cmCTestGenericHandler Superclass;
 
   cmCTestSubmitHandler();
-  ~cmCTestSubmitHandler() CM_OVERRIDE { this->LogFile = CM_NULLPTR; }
+  ~cmCTestSubmitHandler() CM_OVERRIDE { this->LogFile = nullptr; }
 
   /*
    * The main entry point for this class
diff --git a/Source/CTest/cmCTestTestCommand.cxx b/Source/CTest/cmCTestTestCommand.cxx
index 3346d86..febd39e 100644
--- a/Source/CTest/cmCTestTestCommand.cxx
+++ b/Source/CTest/cmCTestTestCommand.cxx
@@ -27,7 +27,7 @@ cmCTestTestCommand::cmCTestTestCommand()
   this->Arguments[ctt_SCHEDULE_RANDOM] = "SCHEDULE_RANDOM";
   this->Arguments[ctt_STOP_TIME] = "STOP_TIME";
   this->Arguments[ctt_TEST_LOAD] = "TEST_LOAD";
-  this->Arguments[ctt_LAST] = CM_NULLPTR;
+  this->Arguments[ctt_LAST] = nullptr;
   this->Last = ctt_LAST;
 }
 
diff --git a/Source/CTest/cmCTestTestHandler.cxx b/Source/CTest/cmCTestTestHandler.cxx
index ef0fac8..91c2fdc 100644
--- a/Source/CTest/cmCTestTestHandler.cxx
+++ b/Source/CTest/cmCTestTestHandler.cxx
@@ -334,7 +334,7 @@ cmCTestTestHandler::cmCTestTestHandler()
 
   this->MemCheck = false;
 
-  this->LogFile = CM_NULLPTR;
+  this->LogFile = nullptr;
 
   // regex to detect <DartMeasurement>...</DartMeasurement>
   this->DartStuff.compile("(<DartMeasurement.*/DartMeasurement[a-zA-Z]*>)");
@@ -600,7 +600,7 @@ int cmCTestTestHandler::ProcessHandler()
       cmCTestLog(this->CTest, ERROR_MESSAGE, "Cannot create "
                    << (this->MemCheck ? "memory check" : "testing")
                    << " XML file" << std::endl);
-      this->LogFile = CM_NULLPTR;
+      this->LogFile = nullptr;
       return 1;
     }
     cmXMLWriter xml(xmlfile);
@@ -608,15 +608,15 @@ int cmCTestTestHandler::ProcessHandler()
   }
 
   if (!this->PostProcessHandler()) {
-    this->LogFile = CM_NULLPTR;
+    this->LogFile = nullptr;
     return -1;
   }
 
   if (!failed.empty()) {
-    this->LogFile = CM_NULLPTR;
+    this->LogFile = nullptr;
     return -1;
   }
-  this->LogFile = CM_NULLPTR;
+  this->LogFile = nullptr;
   return 0;
 }
 
@@ -1327,7 +1327,7 @@ void cmCTestTestHandler::ProcessDirectory(std::vector<std::string>& passed,
 
   bool randomSchedule = this->CTest->GetScheduleType() == "Random";
   if (randomSchedule) {
-    srand((unsigned)time(CM_NULLPTR));
+    srand((unsigned)time(nullptr));
   }
 
   for (ListOfTests::iterator it = this->TestList.begin();
@@ -1556,8 +1556,8 @@ int cmCTestTestHandler::ExecuteCommands(std::vector<std::string>& vec)
     int retVal = 0;
     cmCTestOptionalLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
                        "Run command: " << *it << std::endl, this->Quiet);
-    if (!cmSystemTools::RunSingleCommand(it->c_str(), CM_NULLPTR, CM_NULLPTR,
-                                         &retVal, CM_NULLPTR,
+    if (!cmSystemTools::RunSingleCommand(it->c_str(), nullptr, nullptr,
+                                         &retVal, nullptr,
                                          cmSystemTools::OUTPUT_MERGE
                                          /*this->Verbose*/) ||
         retVal != 0) {
diff --git a/Source/CTest/cmCTestUpdateCommand.cxx b/Source/CTest/cmCTestUpdateCommand.cxx
index 8c03754..3d800f8 100644
--- a/Source/CTest/cmCTestUpdateCommand.cxx
+++ b/Source/CTest/cmCTestUpdateCommand.cxx
@@ -78,12 +78,12 @@ cmCTestGenericHandler* cmCTestUpdateCommand::InitializeHandler()
     this->CTest->GetInitializedHandler("update");
   if (!handler) {
     this->SetError("internal CTest error. Cannot instantiate update handler");
-    return CM_NULLPTR;
+    return nullptr;
   }
   handler->SetCommand(this);
   if (source_dir.empty()) {
     this->SetError("source directory not specified. Please use SOURCE tag");
-    return CM_NULLPTR;
+    return nullptr;
   }
   handler->SetOption("SourceDirectory", source_dir.c_str());
   handler->SetQuiet(this->Quiet);
diff --git a/Source/CTest/cmCTestUpdateHandler.cxx b/Source/CTest/cmCTestUpdateHandler.cxx
index e08a9b7..0504f90 100644
--- a/Source/CTest/cmCTestUpdateHandler.cxx
+++ b/Source/CTest/cmCTestUpdateHandler.cxx
@@ -309,7 +309,7 @@ bool cmCTestUpdateHandler::SelectVCS()
 
   // If no update command was specified, lookup one for this VCS tool.
   if (this->UpdateCommand.empty()) {
-    const char* key = CM_NULLPTR;
+    const char* key = nullptr;
     switch (this->UpdateType) {
       case e_CVS:
         key = "CVSCommand";
diff --git a/Source/CTest/cmCTestUploadCommand.cxx b/Source/CTest/cmCTestUploadCommand.cxx
index 717117a..d85f35f 100644
--- a/Source/CTest/cmCTestUploadCommand.cxx
+++ b/Source/CTest/cmCTestUploadCommand.cxx
@@ -18,7 +18,7 @@ cmCTestGenericHandler* cmCTestUploadCommand::InitializeHandler()
     this->CTest->GetInitializedHandler("upload");
   if (!handler) {
     this->SetError("internal CTest error. Cannot instantiate upload handler");
-    return CM_NULLPTR;
+    return nullptr;
   }
   static_cast<cmCTestUploadHandler*>(handler)->SetFiles(this->Files);
 
diff --git a/Source/CTest/cmCTestVC.cxx b/Source/CTest/cmCTestVC.cxx
index fb2742e..186d2d4 100644
--- a/Source/CTest/cmCTestVC.cxx
+++ b/Source/CTest/cmCTestVC.cxx
@@ -60,7 +60,7 @@ bool cmCTestVC::InitialCheckout(const char* command)
        ai != args.end(); ++ai) {
     vc_co.push_back(ai->c_str());
   }
-  vc_co.push_back(CM_NULLPTR);
+  vc_co.push_back(nullptr);
 
   // Run the initial checkout command and log its output.
   this->Log << "--- Begin Initial Checkout ---\n";
@@ -113,7 +113,7 @@ bool cmCTestVC::RunUpdateCommand(char const* const* cmd, OutputParser* out,
   }
 
   // Run the command.
-  return this->RunChild(cmd, out, err, CM_NULLPTR, encoding);
+  return this->RunChild(cmd, out, err, nullptr, encoding);
 }
 
 std::string cmCTestVC::GetNightlyTime()
diff --git a/Source/CTest/cmCTestVC.h b/Source/CTest/cmCTestVC.h
index 6400bcd..e04cb48 100644
--- a/Source/CTest/cmCTestVC.h
+++ b/Source/CTest/cmCTestVC.h
@@ -100,8 +100,8 @@ protected:
     Revision const* PriorRev;
     File()
       : Status(PathUpdated)
-      , Rev(CM_NULLPTR)
-      , PriorRev(CM_NULLPTR)
+      , Rev(nullptr)
+      , PriorRev(nullptr)
     {
     }
     File(PathStatus status, Revision const* rev, Revision const* priorRev)
@@ -117,12 +117,12 @@ protected:
 
   /** Run a command line and send output to given parsers.  */
   bool RunChild(char const* const* cmd, OutputParser* out, OutputParser* err,
-                const char* workDir = CM_NULLPTR,
+                const char* workDir = nullptr,
                 Encoding encoding = cmProcessOutput::Auto);
 
   /** Run VC update command line and send output to given parsers.  */
   bool RunUpdateCommand(char const* const* cmd, OutputParser* out,
-                        OutputParser* err = CM_NULLPTR,
+                        OutputParser* err = nullptr,
                         Encoding encoding = cmProcessOutput::Auto);
 
   /** Write xml element for one file.  */
diff --git a/Source/CTest/cmParseMumpsCoverage.cxx b/Source/CTest/cmParseMumpsCoverage.cxx
index eb29f55..8802f15 100644
--- a/Source/CTest/cmParseMumpsCoverage.cxx
+++ b/Source/CTest/cmParseMumpsCoverage.cxx
@@ -135,8 +135,8 @@ bool cmParseMumpsCoverage::FindMumpsFile(std::string const& routine,
     return true;
   }
   // try some alternate names
-  const char* tryname[] = { "GUX", "GTM", "ONT", CM_NULLPTR };
-  for (int k = 0; tryname[k] != CM_NULLPTR; k++) {
+  const char* tryname[] = { "GUX", "GTM", "ONT", nullptr };
+  for (int k = 0; tryname[k] != nullptr; k++) {
     std::string routine2 = routine + tryname[k];
     i = this->RoutineToDirectory.find(routine2);
     if (i != this->RoutineToDirectory.end()) {
diff --git a/Source/CTest/cmProcess.cxx b/Source/CTest/cmProcess.cxx
index 9680a69..a7f0f4b 100644
--- a/Source/CTest/cmProcess.cxx
+++ b/Source/CTest/cmProcess.cxx
@@ -9,7 +9,7 @@
 
 cmProcess::cmProcess()
 {
-  this->Process = CM_NULLPTR;
+  this->Process = nullptr;
   this->Timeout = 0;
   this->TotalTime = 0;
   this->ExitValue = 0;
@@ -45,7 +45,7 @@ bool cmProcess::StartProcess()
        i != this->Arguments.end(); ++i) {
     this->ProcessArgs.push_back(i->c_str());
   }
-  this->ProcessArgs.push_back(CM_NULLPTR); // null terminate the list
+  this->ProcessArgs.push_back(nullptr); // null terminate the list
   this->Process = cmsysProcess_New();
   cmsysProcess_SetCommand(this->Process, &*this->ProcessArgs.begin());
   if (!this->WorkingDirectory.empty()) {