1 files changed, 24 insertions, 0 deletions
diff --git a/clang/include/clang/AST/DeclTemplate.h b/clang/include/clang/AST/DeclTemplate.h
index 57d645b740c..aad19a63ef0 100644
--- a/clang/include/clang/AST/DeclTemplate.h
+++ b/clang/include/clang/AST/DeclTemplate.h
@@ -580,6 +580,30 @@ public:
     return reinterpret_cast<Expr *>(TypeOrValue);
   }
 
+  /// \brief Iterator that traverses the elements of a template argument pack.
+  typedef const TemplateArgument * pack_iterator;
+  
+  /// \brief Iterator referencing the first argument of a template argument 
+  /// pack.
+  pack_iterator pack_begin() const {
+    assert(Kind == Pack);
+    return Args.Args;
+  }
+
+  /// \brief Iterator referencing one past the last argument of a template
+  /// argument pack.
+  pack_iterator pack_end() const {
+    assert(Kind == Pack);
+    return Args.Args + Args.NumArgs;
+  }
+  
+  /// \brief The number of template arguments in the given template argument
+  /// pack.
+  unsigned pack_size() const {
+    assert(Kind == Pack);
+    return Args.NumArgs;
+  }
+  
   /// \brief Retrieve the location where the template argument starts.
   SourceLocation getLocation() const { return StartLoc; }