[cfe-commits] r142057 - in /cfe/trunk: include/clang/Basic/DiagnosticSemaKinds.td lib/Sema/SemaType.cpp test/SemaCXX/cxx98-compat.cpp

[Richard Smith]

Author: rsmith
Date: Sat Oct 15 00:42:01 2011
New Revision: 142057

URL: http://llvm.org/viewvc/llvm-project?rev=142057&view=rev
Log:
Add -Wc++98-compat warning for deduced 'auto' type specifier.

Modified:
    cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
    cfe/trunk/lib/Sema/SemaType.cpp
    cfe/trunk/test/SemaCXX/cxx98-compat.cpp

Modified: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td?rev=142057&r1=142056&r2=142057&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td (original)
+++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td Sat Oct 15 00:42:01 2011
@@ -1083,6 +1083,9 @@
     "cannot determine the type of an overloaded function">;
     
 // C++11 auto
+def warn_cxx98_compat_auto_type_specifier : Warning<
+  "'auto' type specifier is incompatible with C++98">,
+  InGroup<CXX98Compat>, DefaultIgnore;
 def err_auto_variable_cannot_appear_in_own_initializer : Error<
   "variable %0 declared with 'auto' type cannot appear in its own initializer">;
 def err_illegal_decl_array_of_auto : Error<

Modified: cfe/trunk/lib/Sema/SemaType.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaType.cpp?rev=142057&r1=142056&r2=142057&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaType.cpp (original)
+++ cfe/trunk/lib/Sema/SemaType.cpp Sat Oct 15 00:42:01 2011
@@ -1851,7 +1851,9 @@
         << Error;
       T = SemaRef.Context.IntTy;
       D.setInvalidType(true);
-    }
+    } else
+      SemaRef.Diag(D.getDeclSpec().getTypeSpecTypeLoc(),
+                   diag::warn_cxx98_compat_auto_type_specifier);
   }
 
   if (SemaRef.getLangOptions().CPlusPlus &&

Modified: cfe/trunk/test/SemaCXX/cxx98-compat.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/cxx98-compat.cpp?rev=142057&r1=142056&r2=142057&view=diff
==============================================================================
--- cfe/trunk/test/SemaCXX/cxx98-compat.cpp (original)
+++ cfe/trunk/test/SemaCXX/cxx98-compat.cpp Sat Oct 15 00:42:01 2011
@@ -87,3 +87,6 @@
 
 inline namespace N { // expected-warning {{inline namespaces are incompatible with C++98}}
 }
+
+auto auto_deduction = 0; // expected-warning {{'auto' type specifier is incompatible with C++98}}
+int *p = new auto(0); // expected-warning {{'auto' type specifier is incompatible with C++98}}