cmLocalVisualStudio10Generator: remove unnecessary `.c_str()`

Source/CPack/WiX/cmCPackWIXGenerator.cxx

@@ -936,12 +936,11 @@ void cmCPackWIXGenerator::AddDirectoryAndFileDefinitions(
 
     std::string fullPath = cmStrCat(topdir, '/', fileName);
 
-    std::string relativePath =
-      cmSystemTools::RelativePath(toplevel.c_str(), fullPath.c_str());
+    std::string relativePath = cmSystemTools::RelativePath(toplevel, fullPath);
 
     std::string id = PathToId(relativePath);
 
-    if (cmSystemTools::FileIsDirectory(fullPath.c_str())) {
+    if (cmSystemTools::FileIsDirectory(fullPath)) {
       std::string subDirectoryId = cmStrCat("CM_D", id);
 
       directoryDefinitions.BeginElement("Directory");
@@ -1070,7 +1069,7 @@ std::string cmCPackWIXGenerator::PathToId(std::string const& path)
 std::string cmCPackWIXGenerator::CreateNewIdForPath(std::string const& path)
 {
   std::vector<std::string> components;
-  cmSystemTools::SplitPath(path.c_str(), components, false);
+  cmSystemTools::SplitPath(path, components, false);
 
   size_t replacementCount = 0;
 

Source/CPack/WiX/cmWIXDirectoriesSourceWriter.cxx

@@ -55,7 +55,7 @@ size_t cmWIXDirectoriesSourceWriter::BeginInstallationPrefixDirectory(
 
   std::vector<std::string> installRoot;
 
-  cmSystemTools::SplitPath(installRootString.c_str(), installRoot);
+  cmSystemTools::SplitPath(installRootString, installRoot);
 
   if (!installRoot.empty() && installRoot.back().empty()) {
     installRoot.pop_back();

Source/cmLocalVisualStudio10Generator.cxx

@@ -95,7 +95,7 @@ void cmLocalVisualStudio10Generator::ReadAndStoreExternalGUID(
   std::string guidStoreName = cmStrCat(name, "_GUID_CMAKE");
   // save the GUID in the cache
   this->GlobalGenerator->GetCMakeInstance()->AddCacheEntry(
-    guidStoreName, parser.GUID.c_str(), "Stored GUID", cmStateEnums::INTERNAL);
+    guidStoreName, parser.GUID, "Stored GUID", cmStateEnums::INTERNAL);
 }
 
 const char* cmLocalVisualStudio10Generator::ReportErrorLabel() const