Removed some maybe-dangerous use of auto. Added DefaultFlags, and using this as default parameter to for instance ReparseTranslationUnit.

src/CompileCommands.cc

@@ -17,7 +17,7 @@ std::vector<clang::CompileCommand> clang::CompileCommands::
 get_commands() {
   unsigned N = clang_CompileCommands_getSize(commands_);
   std::vector<clang::CompileCommand> res;
-  for (auto i = 0; i < N; i++) {
+  for (unsigned i = 0; i < N; i++) {
     res.emplace_back(clang::CompileCommand(i, this));
   }
   return res;

src/CompletionString.cc

@@ -17,7 +17,7 @@ std::vector<clang::CompletionChunk> clang::CompletionString::
 get_chunks() {
   std::vector<clang::CompletionChunk> res;
   if (clang_getCompletionAvailability(str_) == CXAvailability_Available) {
-    for (auto i = 0; i < get_num_chunks(); i++) {
+    for (size_t i = 0; i < get_num_chunks(); i++) {
       res.emplace_back(clang_getCString(clang_getCompletionChunkText(str_, i)),
 		       static_cast<CompletionChunkKind>
 		       (clang_getCompletionChunkKind(str_, i)));

src/TranslationUnit.cc

@@ -8,7 +8,6 @@ clang::TranslationUnit::
 clang::TranslationUnit& clang::TranslationUnit::
 operator=(const clang::TranslationUnit &tu) {
   tu_ = tu.tu_;
-  flags = tu.flags;
   return *this;
 }
 
@@ -43,7 +42,8 @@ clang::TranslationUnit::
 TranslationUnit(clang::Index *index,
                 const std::string &filepath,
                 const std::vector<std::string> &command_line_args,
-                const std::map<std::string, std::string> &buffers) {
+                const std::map<std::string, std::string> &buffers,
+                unsigned flags) {
   std::vector<CXUnsavedFile> files;
   for (auto &buffer : buffers) {
     CXUnsavedFile file;
@@ -68,7 +68,8 @@ TranslationUnit(clang::Index *index,
 
 int clang::TranslationUnit::
 ReparseTranslationUnit(const std::string &file_path,
-                       const std::map<std::string, std::string>  &buffers) {
+                       const std::map<std::string, std::string>  &buffers,
+                       unsigned flags) {
   std::vector<CXUnsavedFile> files;
   for (auto &buffer : buffers) {
     CXUnsavedFile file;
@@ -82,3 +83,7 @@ ReparseTranslationUnit(const std::string &file_path,
                                       files.data(),
                                       flags);
 }
+
+unsigned clang::TranslationUnit::DefaultFlags() {
+  return CXTranslationUnit_CacheCompletionResults | CXTranslationUnit_PrecompiledPreamble | CXTranslationUnit_Incomplete;
+}

src/TranslationUnit.h

@@ -23,7 +23,8 @@ namespace clang {
     TranslationUnit(Index *index,
                     const std::string &filepath,
                     const std::vector<std::string> &command_line_args,
-                    const std::map<std::string, std::string> &buffers);
+                    const std::map<std::string, std::string> &buffers,
+                    unsigned flags=DefaultFlags());
     TranslationUnit(Index *index,
                     const std::string &filepath);
     ~TranslationUnit();
@@ -31,8 +32,9 @@ namespace clang {
     TranslationUnit& operator=(const TranslationUnit &tu);
     int ReparseTranslationUnit(const std::string &file_path,
                                const std::map<std::string, std::string>
-                               &buffers);
-
+                               &buffers,
+                               unsigned flags=DefaultFlags());
+    static unsigned DefaultFlags();
   private:
     friend Token;
     friend Tokens;
@@ -41,7 +43,6 @@ namespace clang {
     friend Cursor;
     friend CodeCompleteResults;
     CXTranslationUnit tu_;
-    unsigned flags=CXTranslationUnit_CacheCompletionResults | CXTranslationUnit_PrecompiledPreamble | CXTranslationUnit_Incomplete;
   };
 }  // namespace clang
 #endif  // TRANSLATIONUNIT_H_