From: Douglas Gregor <dgregor@apple.com>
Date: Mon, 30 Aug 2010 14:44:26 +0000 (+0000)
Subject: Predeclare class type_info in Microsoft mode, from Francois Pichet!
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5c0ca52e40e0b9e3c2da7abba47b18e468c84060;p=clang

Predeclare class type_info in Microsoft mode, from Francois Pichet!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112478 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Frontend/InitPreprocessor.cpp b/lib/Frontend/InitPreprocessor.cpp
index 29a8bec1f6..538e6e2c64 100644
--- a/lib/Frontend/InitPreprocessor.cpp
+++ b/lib/Frontend/InitPreprocessor.cpp
@@ -343,6 +343,7 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
       // FIXME:  This should be temporary until we have a __pragma
       // solution, to avoid some errors flagged in VC++ headers.
       Builder.defineMacro("_CRT_SECURE_CPP_OVERLOAD_SECURE_NAMES", "0");
+      Builder.append("class type_info;");
     }
   }
 
diff --git a/test/SemaCXX/MicrosoftExtensions.cpp b/test/SemaCXX/MicrosoftExtensions.cpp
new file mode 100644
index 0000000000..c143e59fb3
--- /dev/null
+++ b/test/SemaCXX/MicrosoftExtensions.cpp
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 %s -fsyntax-only -verify -fms-extensions
+
+
+// ::type_info is predeclared with forward class declartion
+void f(const type_info &a);
+
+