From: Richard Smith <richard-llvm@metafoo.co.uk>
Date: Sun, 4 Sep 2011 20:24:20 +0000 (+0000)
Subject: PR10458: Last part of providing 'auto' type specifier as an extension in C++98: permi... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=87e96eb04ba26022e03263da9d75299ea72adb8f;p=clang

PR10458: Last part of providing 'auto' type specifier as an extension in C++98: permit it within type-ids.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139103 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index ad649a3c22..4928bde002 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -2265,7 +2265,11 @@ bool Parser::ParseOptionalTypeSpecifier(DeclSpec &DS, bool& isInvalid,
 
   // C++0x auto support.
   case tok::kw_auto:
-    if (!getLang().CPlusPlus0x)
+    // This is only called in situations where a storage-class specifier is
+    // illegal, so we can assume an auto type specifier was intended even in
+    // C++98. In C++98 mode, DeclSpec::Finish will produce an appropriate
+    // extension diagnostic.
+    if (!getLang().CPlusPlus)
       return false;
 
     isInvalid = DS.SetTypeSpecType(DeclSpec::TST_auto, Loc, PrevSpec, DiagID);
diff --git a/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p4.cpp b/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p4.cpp
index 856c707a7f..d5d0952aa8 100644
--- a/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p4.cpp
+++ b/test/CXX/dcl.dcl/dcl.spec/dcl.type/dcl.spec.auto/p4.cpp
@@ -20,10 +20,7 @@ void f() {
   for (; auto a = false; ) {
   }
 
-  // FIXME: support 'auto' error recovery here in pre-C++0x mode.
-#if __has_feature(cxx_auto_type)
   new const auto (0);
-#endif
   new (auto) (0.0);
 
   int arr[] = {1, 2, 3};