Add StringRef::{substr, startswith}.

[oota-llvm.git] / include / llvm / ADT / SmallPtrSet.h

diff --git a/include/llvm/ADT/SmallPtrSet.h b/include/llvm/ADT/SmallPtrSet.h
index db1583424bf85432821113c4c5d97663a0a4b2e6..7d00e9a073e78f4bb50f29861715fa225f257ee9 100644 (file)
--- a/include/llvm/ADT/SmallPtrSet.h
+++ b/include/llvm/ADT/SmallPtrSet.h
@@ -17,7 +17,9 @@
 
 #include <cassert>
 #include <cstring>
+#include <iterator>
 #include "llvm/Support/DataTypes.h"
+#include "llvm/Support/PointerLikeTypeTraits.h"
 
 namespace llvm {
 
@@ -168,14 +170,22 @@ protected:
 /// SmallPtrSetIterator - This implements a const_iterator for SmallPtrSet.
 template<typename PtrTy>
 class SmallPtrSetIterator : public SmallPtrSetIteratorImpl {
+  typedef PointerLikeTypeTraits<PtrTy> PtrTraits;
+  
 public:
+  typedef PtrTy                     value_type;
+  typedef PtrTy                     reference;
+  typedef PtrTy                     pointer;
+  typedef std::ptrdiff_t            difference_type;
+  typedef std::forward_iterator_tag iterator_category;
+  
   explicit SmallPtrSetIterator(const void *const *BP)
     : SmallPtrSetIteratorImpl(BP) {}
 
   // Most methods provided by baseclass.
 
   const PtrTy operator*() const {
-    return static_cast<const PtrTy>(const_cast<void*>(*Bucket));
+    return PtrTraits::getFromVoidPointer(const_cast<void*>(*Bucket));
   }
 
   inline SmallPtrSetIterator& operator++() {          // Preincrement
@@ -213,7 +223,7 @@ template<unsigned N>
 struct NextPowerOfTwo {
   enum { Val = NextPowerOfTwoH<N, (N&(N-1)) == 0>::Val };
 };
-
+  
 
 /// SmallPtrSet - This class implements a set which is optimizer for holding
 /// SmallSize or less elements.  This internally rounds up SmallSize to the next
@@ -224,6 +234,7 @@ class SmallPtrSet : public SmallPtrSetImpl {
   // Make sure that SmallSize is a power of two, round up if not.
   enum { SmallSizePowTwo = NextPowerOfTwo<SmallSize>::Val };
   void *SmallArray[SmallSizePowTwo];
+  typedef PointerLikeTypeTraits<PtrType> PtrTraits;
 public:
   SmallPtrSet() : SmallPtrSetImpl(NextPowerOfTwo<SmallSizePowTwo>::Val) {}
   SmallPtrSet(const SmallPtrSet &that) : SmallPtrSetImpl(that) {}
@@ -236,14 +247,20 @@ public:
 
   /// insert - This returns true if the pointer was new to the set, false if it
   /// was already in the set.
-  bool insert(PtrType Ptr) { return insert_imp(Ptr); }
+  bool insert(PtrType Ptr) {
+    return insert_imp(PtrTraits::getAsVoidPointer(Ptr));
+  }
 
   /// erase - If the set contains the specified pointer, remove it and return
   /// true, otherwise return false.
-  bool erase(PtrType Ptr) { return erase_imp(Ptr); }
+  bool erase(PtrType Ptr) {
+    return erase_imp(PtrTraits::getAsVoidPointer(Ptr));
+  }
 
   /// count - Return true if the specified pointer is in the set.
-  bool count(PtrType Ptr) const { return count_imp(Ptr); }
+  bool count(PtrType Ptr) const {
+    return count_imp(PtrTraits::getAsVoidPointer(Ptr));
+  }
 
   template <typename IterT>
   void insert(IterT I, IterT E) {