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Subject: [Bug libstdc++/56468] Clang exposes bug with unexpected forward-declaration of type_info
Date: Tue, 26 Feb 2013 23:22:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56468

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2013-02-26
     Ever Confirmed|0                           |1

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2013-02-26 23:22:23 UTC ---
Something like this should fix it

--- a/libstdc++-v3/libsupc++/exception_ptr.h
+++ b/libstdc++-v3/libsupc++/exception_ptr.h
@@ -44,6 +44,8 @@ extern "C++" {

 namespace std 
 {
+  class type_info;
+
   /**
    * @addtogroup exceptions
    * @{
@@ -141,7 +143,7 @@ namespace std
       operator==(const exception_ptr&, const exception_ptr&)
        _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));

-      const class type_info*
+      const std::type_info*
       __cxa_exception_type() const _GLIBCXX_USE_NOEXCEPT
        __attribute__ ((__pure__));
     };