1 files changed, 11 insertions, 11 deletions

diff --git a/Source/cmExecProgramCommand.cxx b/Source/cmExecProgramCommand.cxx
index fcc3c45..88e085d 100644
--- a/Source/cmExecProgramCommand.cxx
+++ b/Source/cmExecProgramCommand.cxx
@@ -26,8 +26,8 @@ bool cmExecProgramCommand::InitialPass(std::vector<std::string> const& args,
   bool haveoutput_variable = false;
   std::string return_variable;
   bool havereturn_variable = false;
-  for (size_t i = 0; i < args.size(); ++i) {
-    if (args[i] == "OUTPUT_VARIABLE") {
+  for (std::string const& arg : args) {
+    if (arg == "OUTPUT_VARIABLE") {
       count++;
       doingargs = false;
       havereturn_variable = false;
@@ -37,10 +37,10 @@ bool cmExecProgramCommand::InitialPass(std::vector<std::string> const& args,
         this->SetError("called with incorrect number of arguments");
         return false;
       }
-      output_variable = args[i];
+      output_variable = arg;
       haveoutput_variable = false;
       count++;
-    } else if (args[i] == "RETURN_VALUE") {
+    } else if (arg == "RETURN_VALUE") {
       count++;
       doingargs = false;
       haveoutput_variable = false;
@@ -50,16 +50,16 @@ bool cmExecProgramCommand::InitialPass(std::vector<std::string> const& args,
         this->SetError("called with incorrect number of arguments");
         return false;
       }
-      return_variable = args[i];
+      return_variable = arg;
       havereturn_variable = false;
       count++;
-    } else if (args[i] == "ARGS") {
+    } else if (arg == "ARGS") {
       count++;
       havereturn_variable = false;
       haveoutput_variable = false;
       doingargs = true;
     } else if (doingargs) {
-      arguments += args[i];
+      arguments += arg;
       arguments += " ";
       count++;
     }
@@ -86,7 +86,7 @@ bool cmExecProgramCommand::InitialPass(std::vector<std::string> const& args,
                                               args[1].c_str(), verbose);
   } else {
     result = cmExecProgramCommand::RunCommand(command.c_str(), output, retVal,
-                                              CM_NULLPTR, verbose);
+                                              nullptr, verbose);
   }
   if (!result) {
     retVal = -1;
@@ -205,7 +205,7 @@ bool cmExecProgramCommand::RunCommand(const char* command, std::string& output,
   }
   fflush(stdout);
   fflush(stderr);
-  const char* cmd[] = { "/bin/sh", "-c", command, CM_NULLPTR };
+  const char* cmd[] = { "/bin/sh", "-c", command, nullptr };
   cmsysProcess_SetCommand(cp, cmd);
 #endif
 
@@ -217,7 +217,7 @@ bool cmExecProgramCommand::RunCommand(const char* command, std::string& output,
   int p;
   cmProcessOutput processOutput(encoding);
   std::string strdata;
-  while ((p = cmsysProcess_WaitForData(cp, &data, &length, CM_NULLPTR), p)) {
+  while ((p = cmsysProcess_WaitForData(cp, &data, &length, nullptr), p)) {
     if (p == cmsysProcess_Pipe_STDOUT || p == cmsysProcess_Pipe_STDERR) {
       if (verbose) {
         processOutput.DecodeText(data, length, strdata);
@@ -235,7 +235,7 @@ bool cmExecProgramCommand::RunCommand(const char* command, std::string& output,
   }
 
   // All output has been read.  Wait for the process to exit.
-  cmsysProcess_WaitForExit(cp, CM_NULLPTR);
+  cmsysProcess_WaitForExit(cp, nullptr);
   processOutput.DecodeText(output, output);
 
   // Check the result of running the process.