[llvm-commits] [llvm] r68145 - /llvm/trunk/include/llvm/ADT/DenseMap.h

[Chris Lattner]

Author: lattner
Date: Tue Mar 31 15:57:23 2009
New Revision: 68145

URL: http://llvm.org/viewvc/llvm-project?rev=68145&view=rev
Log:
add some accessors so I can play games with DenseMaps.

Modified:
    llvm/trunk/include/llvm/ADT/DenseMap.h

Modified: llvm/trunk/include/llvm/ADT/DenseMap.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/DenseMap.h?rev=68145&r1=68144&r2=68145&view=diff

==============================================================================
--- llvm/trunk/include/llvm/ADT/DenseMap.h (original)
+++ llvm/trunk/include/llvm/ADT/DenseMap.h Tue Mar 31 15:57:23 2009
@@ -279,6 +279,18 @@
     return *this;
   }
 
+  /// isPointerIntoBucketsArray - Return true if the specified pointer points
+  /// somewhere into the DenseMap's array of buckets (i.e. either to a key or
+  /// value in the DenseMap).
+  bool isPointerIntoBucketsArray(const void *Ptr) const {
+    return Ptr >= Buckets && Ptr < Buckets+NumBuckets;
+  }
+
+  /// getPointerIntoBucketsArray() - Return an opaque pointer into the buckets
+  /// array.  In conjunction with the previous method, this can be used to
+  /// determine whether an insertion caused the DenseMap to reallocate.
+  const void *getPointerIntoBucketsArray() const { return Buckets; }
+
 private:
   void CopyFrom(const DenseMap& other) {
     if (NumBuckets != 0 && (!KeyInfoT::isPod() || !ValueInfoT::isPod())) {