[llvm-commits] [llvm] r82620 - /llvm/trunk/include/llvm/Support/PointerLikeTypeTraits.h

[John McCall]

Author: rjmccall
Date: Wed Sep 23 01:53:51 2009
New Revision: 82620

URL: http://llvm.org/viewvc/llvm-project?rev=82620&view=rev
Log:
Make the type traits for a const pointer defer to those for a unqualified
pointer, instead of providing independent values modelled on the default
implementation.


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

Modified: llvm/trunk/include/llvm/Support/PointerLikeTypeTraits.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/PointerLikeTypeTraits.h?rev=82620&r1=82619&r2=82620&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Support/PointerLikeTypeTraits.h (original)
+++ llvm/trunk/include/llvm/Support/PointerLikeTypeTraits.h Wed Sep 23 01:53:51 2009
@@ -50,12 +50,16 @@
 // Provide PointerLikeTypeTraits for const pointers.
 template<typename T>
 class PointerLikeTypeTraits<const T*> {
+  typedef PointerLikeTypeTraits<T*> NonConst;
+
 public:
-  static inline const void *getAsVoidPointer(const T* P) { return P; }
+  static inline const void *getAsVoidPointer(const T* P) {
+    return NonConst::getAsVoidPointer(const_cast<T*>(P));
+  }
   static inline const T *getFromVoidPointer(const void *P) {
-    return static_cast<const T*>(P);
+    return NonConst::getFromVoidPointer(const_cast<void*>(P));
   }
-  enum { NumLowBitsAvailable = 2 };
+  enum { NumLowBitsAvailable = NonConst::NumLowBitsAvailable };
 };
 
 // Provide PointerLikeTypeTraits for uintptr_t.