1 files changed, 10 insertions, 6 deletions
diff --git a/include/clang/Frontend/LangStandard.h b/include/clang/Frontend/LangStandard.h
index 1124d53eafd5..9680e1f2e04c 100644
--- a/include/clang/Frontend/LangStandard.h
+++ b/include/clang/Frontend/LangStandard.h
@@ -25,10 +25,11 @@ enum LangFeatures {
   CPlusPlus = (1 << 4),
   CPlusPlus11 = (1 << 5),
   CPlusPlus1y = (1 << 6),
-  Digraphs = (1 << 7),
-  GNUMode = (1 << 8),
-  HexFloat = (1 << 9),
-  ImplicitInt = (1 << 10)
+  CPlusPlus1z = (1 << 7),
+  Digraphs = (1 << 8),
+  GNUMode = (1 << 9),
+  HexFloat = (1 << 10),
+  ImplicitInt = (1 << 11)
 };
 
 }
@@ -69,12 +70,15 @@ public:
   /// isCPlusPlus - Language is a C++ variant.
   bool isCPlusPlus() const { return Flags & frontend::CPlusPlus; }
 
-  /// isCPlusPlus11 - Language is a C++0x variant.
+  /// isCPlusPlus11 - Language is a C++11 variant (or later).
   bool isCPlusPlus11() const { return Flags & frontend::CPlusPlus11; }
 
-  /// isCPlusPlus1y - Language is a C++1y variant.
+  /// isCPlusPlus1y - Language is a C++14 variant (or later).
   bool isCPlusPlus1y() const { return Flags & frontend::CPlusPlus1y; }
 
+  /// isCPlusPlus1z - Language is a C++17 variant (or later).
+  bool isCPlusPlus1z() const { return Flags & frontend::CPlusPlus1z; }
+
   /// hasDigraphs - Language supports digraphs.
   bool hasDigraphs() const { return Flags & frontend::Digraphs; }