Reduce raw string pointers usage.

* Change some functions to take `std::string` instead of
  `const char*` in the following classes: `cmMakeFile`, `cmake`,
  `cmCoreTryCompile`, `cmSystemTools`,  `cmState`, `cmLocalGenerator`
  and a few others.
* Greatly reduce using of `const char*` overloads for
  `cmSystemTools::MakeDirectory` and `cmSystemTools::RelativePath`.
* Remove many redundant `c_str()` conversions throughout the code.

1 files changed, 7 insertions, 7 deletions

diff --git a/Source/CTest/cmCTestUpdateHandler.cxx b/Source/CTest/cmCTestUpdateHandler.cxx
index 809abd1..504b210 100644
--- a/Source/CTest/cmCTestUpdateHandler.cxx
+++ b/Source/CTest/cmCTestUpdateHandler.cxx
@@ -257,37 +257,37 @@ int cmCTestUpdateHandler::DetectVCS(const char* dir)
                      "Check directory: " << sourceDirectory << std::endl,
                      this->Quiet);
   sourceDirectory += "/.svn";
-  if (cmSystemTools::FileExists(sourceDirectory.c_str())) {
+  if (cmSystemTools::FileExists(sourceDirectory)) {
     return cmCTestUpdateHandler::e_SVN;
   }
   sourceDirectory = dir;
   sourceDirectory += "/CVS";
-  if (cmSystemTools::FileExists(sourceDirectory.c_str())) {
+  if (cmSystemTools::FileExists(sourceDirectory)) {
     return cmCTestUpdateHandler::e_CVS;
   }
   sourceDirectory = dir;
   sourceDirectory += "/.bzr";
-  if (cmSystemTools::FileExists(sourceDirectory.c_str())) {
+  if (cmSystemTools::FileExists(sourceDirectory)) {
     return cmCTestUpdateHandler::e_BZR;
   }
   sourceDirectory = dir;
   sourceDirectory += "/.git";
-  if (cmSystemTools::FileExists(sourceDirectory.c_str())) {
+  if (cmSystemTools::FileExists(sourceDirectory)) {
     return cmCTestUpdateHandler::e_GIT;
   }
   sourceDirectory = dir;
   sourceDirectory += "/.hg";
-  if (cmSystemTools::FileExists(sourceDirectory.c_str())) {
+  if (cmSystemTools::FileExists(sourceDirectory)) {
     return cmCTestUpdateHandler::e_HG;
   }
   sourceDirectory = dir;
   sourceDirectory += "/.p4";
-  if (cmSystemTools::FileExists(sourceDirectory.c_str())) {
+  if (cmSystemTools::FileExists(sourceDirectory)) {
     return cmCTestUpdateHandler::e_P4;
   }
   sourceDirectory = dir;
   sourceDirectory += "/.p4config";
-  if (cmSystemTools::FileExists(sourceDirectory.c_str())) {
+  if (cmSystemTools::FileExists(sourceDirectory)) {
     return cmCTestUpdateHandler::e_P4;
   }
   return cmCTestUpdateHandler::e_UNKNOWN;