[llvm-commits] [llvm] r95585 - /llvm/trunk/include/llvm/Support/Casting.h

[Chris Lattner]

Author: lattner
Date: Mon Feb  8 16:05:38 2010
New Revision: 95585

URL: http://llvm.org/viewvc/llvm-project?rev=95585&view=rev
Log:
use a c-style cast instead of reinterpret-cast, as sometimes the
cast needs to adjust for a vtable pointer when going from base to
derived type (when the base doesn't have a vtable but the
derived type does).

Modified:
    llvm/trunk/include/llvm/Support/Casting.h

Modified: llvm/trunk/include/llvm/Support/Casting.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/Casting.h?rev=95585&r1=95584&r2=95585&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Support/Casting.h (original)
+++ llvm/trunk/include/llvm/Support/Casting.h Mon Feb  8 16:05:38 2010
@@ -180,8 +180,9 @@
 template<class To, class FromTy> struct cast_convert_val<To,FromTy,FromTy> {
   // This _is_ a simple type, just cast it.
   static typename cast_retty<To, FromTy>::ret_type doit(const FromTy &Val) {
-    return reinterpret_cast<typename cast_retty<To, FromTy>::ret_type>(
-                         const_cast<FromTy&>(Val));
+    typename cast_retty<To, FromTy>::ret_type Res2
+     = (typename cast_retty<To, FromTy>::ret_type)const_cast<FromTy&>(Val);
+    return Res2;
   }
 };