Remove unnecessary c_str() calls

Use the new IsOn(),IsOff() overloads.

24 files changed, 40 insertions, 43 deletions

diff --git a/Source/CTest/cmCTestBuildHandler.cxx b/Source/CTest/cmCTestBuildHandler.cxx
index c5941ce..a8309d9 100644
--- a/Source/CTest/cmCTestBuildHandler.cxx
+++ b/Source/CTest/cmCTestBuildHandler.cxx
@@ -327,7 +327,7 @@ int cmCTestBuildHandler::ProcessHandler()
 
   std::string const& useLaunchers =
     this->CTest->GetCTestConfiguration("UseLaunchers");
-  this->UseCTestLaunch = cmSystemTools::IsOn(useLaunchers.c_str());
+  this->UseCTestLaunch = cmSystemTools::IsOn(useLaunchers);
 
   // Create a last build log
   cmGeneratedFileStream ofs;
diff --git a/Source/CTest/cmCTestGIT.cxx b/Source/CTest/cmCTestGIT.cxx
index b919c79..71fcafb 100644
--- a/Source/CTest/cmCTestGIT.cxx
+++ b/Source/CTest/cmCTestGIT.cxx
@@ -272,7 +272,7 @@ bool cmCTestGIT::UpdateImpl()
 
   std::string init_submodules =
     this->CTest->GetCTestConfiguration("GITInitSubmodules");
-  if (cmSystemTools::IsOn(init_submodules.c_str())) {
+  if (cmSystemTools::IsOn(init_submodules)) {
     char const* git_submodule_init[] = { git, "submodule", "init", nullptr };
     ret = this->RunChild(git_submodule_init, &submodule_out, &submodule_err,
                          top_dir.c_str());
diff --git a/Source/CTest/cmCTestTestHandler.cxx b/Source/CTest/cmCTestTestHandler.cxx
index d1d8d08..7fb5e80 100644
--- a/Source/CTest/cmCTestTestHandler.cxx
+++ b/Source/CTest/cmCTestTestHandler.cxx
@@ -2126,10 +2126,10 @@ bool cmCTestTestHandler::SetTestsProperties(
       for (cmCTestTestProperties& rt : this->TestList) {
         if (t == rt.Name) {
           if (key == "WILL_FAIL") {
-            rt.WillFail = cmSystemTools::IsOn(val.c_str());
+            rt.WillFail = cmSystemTools::IsOn(val);
           }
           if (key == "DISABLED") {
-            rt.Disabled = cmSystemTools::IsOn(val.c_str());
+            rt.Disabled = cmSystemTools::IsOn(val);
           }
           if (key == "ATTACHED_FILES") {
             cmSystemTools::ExpandListArgument(val, rt.AttachedFiles);
@@ -2172,7 +2172,7 @@ bool cmCTestTestHandler::SetTestsProperties(
             cmSystemTools::ExpandListArgument(val, rt.RequiredFiles);
           }
           if (key == "RUN_SERIAL") {
-            rt.RunSerial = cmSystemTools::IsOn(val.c_str());
+            rt.RunSerial = cmSystemTools::IsOn(val);
           }
           if (key == "FAIL_REGULAR_EXPRESSION") {
             std::vector<std::string> lval;
@@ -2188,7 +2188,7 @@ bool cmCTestTestHandler::SetTestsProperties(
             }
           }
           if (key == "PROCESSOR_AFFINITY") {
-            rt.WantAffinity = cmSystemTools::IsOn(val.c_str());
+            rt.WantAffinity = cmSystemTools::IsOn(val);
           }
           if (key == "SKIP_RETURN_CODE") {
             rt.SkipReturnCode = atoi(val.c_str());
diff --git a/Source/CTest/cmCTestVC.cxx b/Source/CTest/cmCTestVC.cxx
index a59d671..21c8889 100644
--- a/Source/CTest/cmCTestVC.cxx
+++ b/Source/CTest/cmCTestVC.cxx
@@ -146,7 +146,7 @@ bool cmCTestVC::Update()
   // if update version only is on then do not actually update,
   // just note the current version and finish
   if (!cmSystemTools::IsOn(
-        this->CTest->GetCTestConfiguration("UpdateVersionOnly").c_str())) {
+        this->CTest->GetCTestConfiguration("UpdateVersionOnly"))) {
     result = this->NoteOldRevision() && result;
     this->Log << "--- Begin Update ---\n";
     result = this->UpdateImpl() && result;
diff --git a/Source/CursesDialog/cmCursesMainForm.cxx b/Source/CursesDialog/cmCursesMainForm.cxx
index 4a379c3..931797a 100644
--- a/Source/CursesDialog/cmCursesMainForm.cxx
+++ b/Source/CursesDialog/cmCursesMainForm.cxx
@@ -709,7 +709,7 @@ void cmCursesMainForm::FixValue(cmStateEnums::CacheEntryType type,
     cmSystemTools::ConvertToUnixSlashes(out);
   }
   if (type == cmStateEnums::BOOL) {
-    if (cmSystemTools::IsOff(out.c_str())) {
+    if (cmSystemTools::IsOff(out)) {
       out = "OFF";
     } else {
       out = "ON";
diff --git a/Source/cmCTest.cxx b/Source/cmCTest.cxx
index 3d3d526..e847bae 100644
--- a/Source/cmCTest.cxx
+++ b/Source/cmCTest.cxx
@@ -292,8 +292,7 @@ cmCTest::cmCTest()
   this->RepeatUntilFail = false;
   std::string outOnFail;
   if (cmSystemTools::GetEnv("CTEST_OUTPUT_ON_FAILURE", outOnFail)) {
-    this->OutputTestOutputOnTestFailure =
-      !cmSystemTools::IsOff(outOnFail.c_str());
+    this->OutputTestOutputOnTestFailure = !cmSystemTools::IsOff(outOnFail);
   }
   this->InitStreams();
 
@@ -747,8 +746,8 @@ bool cmCTest::UpdateCTestConfiguration()
     }
   }
   if (this->ProduceXML) {
-    this->CompressXMLFiles = cmSystemTools::IsOn(
-      this->GetCTestConfiguration("CompressSubmission").c_str());
+    this->CompressXMLFiles =
+      cmSystemTools::IsOn(this->GetCTestConfiguration("CompressSubmission"));
   }
   return true;
 }
@@ -1936,7 +1935,7 @@ bool cmCTest::HandleCommandLineArguments(size_t& i,
   if (this->CheckArgument(arg, "--interactive-debug-mode") &&
       i < args.size() - 1) {
     i++;
-    this->InteractiveDebugMode = cmSystemTools::IsOn(args[i].c_str());
+    this->InteractiveDebugMode = cmSystemTools::IsOn(args[i]);
   }
   if (this->CheckArgument(arg, "--submit-index") && i < args.size() - 1) {
     i++;
diff --git a/Source/cmCacheManager.cxx b/Source/cmCacheManager.cxx
index 5091c97..d2d419f 100644
--- a/Source/cmCacheManager.cxx
+++ b/Source/cmCacheManager.cxx
@@ -616,7 +616,7 @@ void cmCacheManager::CacheIterator::SetValue(const char* value)
 
 bool cmCacheManager::CacheIterator::GetValueAsBool() const
 {
-  return cmSystemTools::IsOn(this->GetEntry().Value.c_str());
+  return cmSystemTools::IsOn(this->GetEntry().Value);
 }
 
 std::vector<std::string> cmCacheManager::CacheEntry::GetPropertyList() const
diff --git a/Source/cmFileCommand.cxx b/Source/cmFileCommand.cxx
index 1c29017..54af2f4 100644
--- a/Source/cmFileCommand.cxx
+++ b/Source/cmFileCommand.cxx
@@ -784,10 +784,10 @@ bool cmFileCommand::HandleGlobCommand(std::vector<std::string> const& args,
     if (*i == "LIST_DIRECTORIES") {
       ++i; // skip LIST_DIRECTORIES
       if (i != args.end()) {
-        if (cmSystemTools::IsOn(i->c_str())) {
+        if (cmSystemTools::IsOn(*i)) {
           g.SetListDirs(true);
           g.SetRecurseListDirs(true);
-        } else if (cmSystemTools::IsOff(i->c_str())) {
+        } else if (cmSystemTools::IsOff(*i)) {
           g.SetListDirs(false);
           g.SetRecurseListDirs(false);
         } else {
@@ -1756,7 +1756,7 @@ struct cmFileInstaller : public cmFileCopier
     // Check whether to copy files always or only if they have changed.
     std::string install_always;
     if (cmSystemTools::GetEnv("CMAKE_INSTALL_ALWAYS", install_always)) {
-      this->Always = cmSystemTools::IsOn(install_always.c_str());
+      this->Always = cmSystemTools::IsOn(install_always);
     }
     // Get the current manifest.
     this->Manifest =
@@ -2747,7 +2747,7 @@ bool cmFileCommand::HandleDownloadCommand(std::vector<std::string> const& args)
     } else if (*i == "TLS_VERIFY") {
       ++i;
       if (i != args.end()) {
-        tls_verify = cmSystemTools::IsOn(i->c_str());
+        tls_verify = cmSystemTools::IsOn(*i);
       } else {
         this->SetError("TLS_VERIFY missing bool value.");
         return false;
diff --git a/Source/cmGeneratorExpressionNode.cxx b/Source/cmGeneratorExpressionNode.cxx
index 3381e6d..9aa5212 100644
--- a/Source/cmGeneratorExpressionNode.cxx
+++ b/Source/cmGeneratorExpressionNode.cxx
@@ -156,7 +156,7 @@ static const struct BoolNode : public cmGeneratorExpressionNode
     const GeneratorExpressionContent* /*content*/,
     cmGeneratorExpressionDAGChecker* /*dagChecker*/) const override
   {
-    return !cmSystemTools::IsOff(parameters.begin()->c_str()) ? "1" : "0";
+    return !cmSystemTools::IsOff(*parameters.begin()) ? "1" : "0";
   }
 } boolNode;
 
diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index eb1852d..80a99d5 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -2556,7 +2556,7 @@ static void processIncludeDirectories(
         }
       }
 
-      if (!cmSystemTools::IsOff(entryInclude.c_str())) {
+      if (!cmSystemTools::IsOff(entryInclude)) {
         cmSystemTools::ConvertToUnixSlashes(entryInclude);
       }
       std::string inc = entryInclude;
diff --git a/Source/cmGlobalGenerator.cxx b/Source/cmGlobalGenerator.cxx
index 92ede7f..ef5f6e9 100644
--- a/Source/cmGlobalGenerator.cxx
+++ b/Source/cmGlobalGenerator.cxx
@@ -176,7 +176,7 @@ std::string cmGlobalGenerator::SelectMakeProgram(
   const std::string& inMakeProgram, const std::string& makeDefault) const
 {
   std::string makeProgram = inMakeProgram;
-  if (cmSystemTools::IsOff(makeProgram.c_str())) {
+  if (cmSystemTools::IsOff(makeProgram)) {
     const char* makeProgramCSTR =
       this->CMakeInstance->GetCacheDefinition("CMAKE_MAKE_PROGRAM");
     if (cmSystemTools::IsOff(makeProgramCSTR)) {
@@ -184,7 +184,7 @@ std::string cmGlobalGenerator::SelectMakeProgram(
     } else {
       makeProgram = makeProgramCSTR;
     }
-    if (cmSystemTools::IsOff(makeProgram.c_str()) && !makeProgram.empty()) {
+    if (cmSystemTools::IsOff(makeProgram) && !makeProgram.empty()) {
       makeProgram = "CMAKE_MAKE_PROGRAM-NOTFOUND";
     }
   }
diff --git a/Source/cmGlobalVisualStudio7Generator.cxx b/Source/cmGlobalVisualStudio7Generator.cxx
index 28cbdc7..21121f2 100644
--- a/Source/cmGlobalVisualStudio7Generator.cxx
+++ b/Source/cmGlobalVisualStudio7Generator.cxx
@@ -679,7 +679,7 @@ std::set<std::string> cmGlobalVisualStudio7Generator::IsPartOfDefaultBuild(
           std::unique_ptr<cmCompiledGeneratorExpression> cge =
             ge.Parse(propertyValue);
           if (cmSystemTools::IsOn(
-                cge->Evaluate(target->GetLocalGenerator(), i).c_str())) {
+                cge->Evaluate(target->GetLocalGenerator(), i))) {
             activeConfigs.insert(i);
           }
         }
diff --git a/Source/cmIncludeDirectoryCommand.cxx b/Source/cmIncludeDirectoryCommand.cxx
index 4f80fb8..eaaf64d 100644
--- a/Source/cmIncludeDirectoryCommand.cxx
+++ b/Source/cmIncludeDirectoryCommand.cxx
@@ -120,7 +120,7 @@ void cmIncludeDirectoryCommand::NormalizeInclude(std::string& inc)
     return;
   }
 
-  if (!cmSystemTools::IsOff(inc.c_str())) {
+  if (!cmSystemTools::IsOff(inc)) {
     cmSystemTools::ConvertToUnixSlashes(inc);
 
     if (!cmSystemTools::FileIsFullPath(inc)) {
diff --git a/Source/cmInstalledFile.cxx b/Source/cmInstalledFile.cxx
index 3ffeabd..0e06029 100644
--- a/Source/cmInstalledFile.cxx
+++ b/Source/cmInstalledFile.cxx
@@ -102,7 +102,7 @@ bool cmInstalledFile::GetPropertyAsBool(const std::string& prop) const
 {
   std::string value;
   bool isSet = this->GetProperty(prop, value);
-  return isSet && cmSystemTools::IsOn(value.c_str());
+  return isSet && cmSystemTools::IsOn(value);
 }
 
 void cmInstalledFile::GetPropertyAsList(const std::string& prop,
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index 532f9a9..aef9aa6 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -2024,7 +2024,7 @@ void cmLocalGenerator::AppendIncludeDirectories(
 
     std::string inc = include;
 
-    if (!cmSystemTools::IsOff(inc.c_str())) {
+    if (!cmSystemTools::IsOff(inc)) {
       cmSystemTools::ConvertToUnixSlashes(inc);
     }
 
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 6127b57..90c8599 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -1738,7 +1738,7 @@ void cmMakefile::AddCacheDefinition(const std::string& name, const char* value,
       cmSystemTools::ExpandListArgument(nvalue, files);
       nvalue.clear();
       for (cc = 0; cc < files.size(); cc++) {
-        if (!cmSystemTools::IsOff(files[cc].c_str())) {
+        if (!cmSystemTools::IsOff(files[cc])) {
           files[cc] = cmSystemTools::CollapseFullPath(files[cc]);
         }
         if (cc > 0) {
diff --git a/Source/cmOptionCommand.cxx b/Source/cmOptionCommand.cxx
index 239cd00..816f06c 100644
--- a/Source/cmOptionCommand.cxx
+++ b/Source/cmOptionCommand.cxx
@@ -67,7 +67,7 @@ bool cmOptionCommand::InitialPass(std::vector<std::string> const& args,
   if (args.size() == 3) {
     initialValue = args[2];
   }
-  bool init = cmSystemTools::IsOn(initialValue.c_str());
+  bool init = cmSystemTools::IsOn(initialValue);
   this->Makefile->AddCacheDefinition(args[0], init ? "ON" : "OFF",
                                      args[1].c_str(), cmStateEnums::BOOL);
 
diff --git a/Source/cmQtAutoGenInitializer.cxx b/Source/cmQtAutoGenInitializer.cxx
index 5dd3c8b..8bd985a 100644
--- a/Source/cmQtAutoGenInitializer.cxx
+++ b/Source/cmQtAutoGenInitializer.cxx
@@ -205,8 +205,7 @@ bool cmQtAutoGenInitializer::InitCustomTargets()
     unsigned long iVerb = 0;
     if (!cmSystemTools::StringToULong(this->Verbosity.c_str(), &iVerb)) {
       // Non numeric verbosity
-      this->Verbosity =
-        cmSystemTools::IsOn(this->Verbosity.c_str()) ? "1" : "0";
+      this->Verbosity = cmSystemTools::IsOn(this->Verbosity) ? "1" : "0";
     }
   }
 
diff --git a/Source/cmQtAutoGenerator.cxx b/Source/cmQtAutoGenerator.cxx
index 64ce0e3..734b2d7 100644
--- a/Source/cmQtAutoGenerator.cxx
+++ b/Source/cmQtAutoGenerator.cxx
@@ -645,7 +645,7 @@ cmQtAutoGenerator::cmQtAutoGenerator()
         Logger_.SetVerbosity(static_cast<unsigned int>(iVerbose));
       } else {
         // Non numeric verbosity
-        Logger_.SetVerbose(cmSystemTools::IsOn(verbose.c_str()));
+        Logger_.SetVerbose(cmSystemTools::IsOn(verbose));
       }
     }
   }
@@ -653,7 +653,7 @@ cmQtAutoGenerator::cmQtAutoGenerator()
     std::string colorEnv;
     cmSystemTools::GetEnv("COLOR", colorEnv);
     if (!colorEnv.empty()) {
-      Logger_.SetColorOutput(cmSystemTools::IsOn(colorEnv.c_str()));
+      Logger_.SetColorOutput(cmSystemTools::IsOn(colorEnv));
     } else {
       Logger_.SetColorOutput(true);
     }
diff --git a/Source/cmSetPropertyCommand.cxx b/Source/cmSetPropertyCommand.cxx
index 171b62e..3c4111b 100644
--- a/Source/cmSetPropertyCommand.cxx
+++ b/Source/cmSetPropertyCommand.cxx
@@ -330,8 +330,8 @@ bool cmSetPropertyCommand::HandleTest(cmTest* test)
 bool cmSetPropertyCommand::HandleCacheMode()
 {
   if (this->PropertyName == "ADVANCED") {
-    if (!this->Remove && !cmSystemTools::IsOn(this->PropertyValue.c_str()) &&
-        !cmSystemTools::IsOff(this->PropertyValue.c_str())) {
+    if (!this->Remove && !cmSystemTools::IsOn(this->PropertyValue) &&
+        !cmSystemTools::IsOff(this->PropertyValue)) {
       std::ostringstream e;
       e << "given non-boolean value \"" << this->PropertyValue
         << "\" for CACHE property \"ADVANCED\".  ";
diff --git a/Source/cmSetSourceFilesPropertiesCommand.cxx b/Source/cmSetSourceFilesPropertiesCommand.cxx
index 33e1b2e..8445b02 100644
--- a/Source/cmSetSourceFilesPropertiesCommand.cxx
+++ b/Source/cmSetSourceFilesPropertiesCommand.cxx
@@ -87,7 +87,7 @@ bool cmSetSourceFilesPropertiesCommand::RunCommand(
         propertyPairs.push_back(*j);
         if (*j == "GENERATED") {
           ++j;
-          if (j != propend && cmSystemTools::IsOn(j->c_str())) {
+          if (j != propend && cmSystemTools::IsOn(*j)) {
             generated = true;
           }
         } else {
diff --git a/Source/cmSiteNameCommand.cxx b/Source/cmSiteNameCommand.cxx
index d2e83a6..7f33b7a 100644
--- a/Source/cmSiteNameCommand.cxx
+++ b/Source/cmSiteNameCommand.cxx
@@ -50,7 +50,7 @@ bool cmSiteNameCommand::InitialPass(std::vector<std::string> const& args,
   }
 #else
   // try to find the hostname for this computer
-  if (!cmSystemTools::IsOff(hostname_cmd.c_str())) {
+  if (!cmSystemTools::IsOff(hostname_cmd)) {
     std::string host;
     cmSystemTools::RunSingleCommand(hostname_cmd.c_str(), &host, nullptr,
                                     nullptr, nullptr,
diff --git a/Source/cmVisualStudio10TargetGenerator.cxx b/Source/cmVisualStudio10TargetGenerator.cxx
index ea65e21..d239193 100644
--- a/Source/cmVisualStudio10TargetGenerator.cxx
+++ b/Source/cmVisualStudio10TargetGenerator.cxx
@@ -1798,7 +1798,7 @@ void cmVisualStudio10TargetGenerator::WriteExtraSource(Elem& e1,
             "EnableDebuggingInformation",
             "'$(Configuration)|$(Platform)'=='" + this->Configurations[i] +
               "|" + this->Platform + "'",
-            cmSystemTools::IsOn(enableDebug.c_str()) ? "true" : "false");
+            cmSystemTools::IsOn(enableDebug) ? "true" : "false");
         }
       }
     }
@@ -1815,8 +1815,7 @@ void cmVisualStudio10TargetGenerator::WriteExtraSource(Elem& e1,
             "DisableOptimizations",
             "'$(Configuration)|$(Platform)'=='" + this->Configurations[i] +
               "|" + this->Platform + "'",
-            (cmSystemTools::IsOn(disableOptimizations.c_str()) ? "true"
-                                                               : "false"));
+            (cmSystemTools::IsOn(disableOptimizations) ? "true" : "false"));
         }
       }
     }
diff --git a/Source/cmcmd.cxx b/Source/cmcmd.cxx
index 2027722..87da108 100644
--- a/Source/cmcmd.cxx
+++ b/Source/cmcmd.cxx
@@ -917,8 +917,8 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
         if (args.size() >= 9 && args[8].length() >= 8 &&
             args[8].substr(0, 8) == "--color=") {
           // Enable or disable color based on the switch value.
-          color = (args[8].size() == 8 ||
-                   cmSystemTools::IsOn(args[8].substr(8).c_str()));
+          color =
+            (args[8].size() == 8 || cmSystemTools::IsOn(args[8].substr(8)));
         }
       } else {
         // Support older signature for existing makefiles:
@@ -1354,7 +1354,7 @@ int cmcmd::ExecuteEchoColor(std::vector<std::string>& args)
       // Enable or disable color based on the switch value.
       std::string value = args[i].substr(9);
       if (!value.empty()) {
-        enabled = cmSystemTools::IsOn(value.c_str());
+        enabled = cmSystemTools::IsOn(value);
       }
     } else if (cmHasLiteralPrefix(args[i], "--progress-dir=")) {
       progressDir = args[i].substr(15);
@@ -1407,7 +1407,7 @@ int cmcmd::ExecuteLinkScript(std::vector<std::string>& args)
   bool verbose = false;
   if (args.size() >= 4) {
     if (args[3].find("--verbose=") == 0) {
-      if (!cmSystemTools::IsOff(args[3].substr(10).c_str())) {
+      if (!cmSystemTools::IsOff(args[3].substr(10))) {
         verbose = true;
       }
     }