PseudoSourceValue: Introduce a 'PSVKind' enumerator.

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

diff --git a/include/llvm/ADT/ilist_node.h b/include/llvm/ADT/ilist_node.h
index 3de4f156d20e60629457aee7929152522fdfef6e..26d0b55e4093e3b34c6e1d63265f71eeb6382044 100644 (file)
--- a/include/llvm/ADT/ilist_node.h
+++ b/include/llvm/ADT/ilist_node.h
@@ -30,7 +30,7 @@ protected:
   NodeTy *getPrev() { return Prev; }
   const NodeTy *getPrev() const { return Prev; }
   void setPrev(NodeTy *P) { Prev = P; }
-  ilist_half_node() : Prev(0) {}
+  ilist_half_node() : Prev(nullptr) {}
 };
 
 template<typename NodeTy>
@@ -48,7 +48,7 @@ class ilist_node : private ilist_half_node<NodeTy> {
   const NodeTy *getNext() const { return Next; }
   void setNext(NodeTy *N) { Next = N; }
 protected:
-  ilist_node() : Next(0) {}
+  ilist_node() : Next(nullptr) {}
 
 public:
   /// @name Adjacent Node Accessors
@@ -60,18 +60,18 @@ public:
 
     // Check for sentinel.
     if (!Prev->getNext())
-      return 0;
+      return nullptr;
 
     return Prev;
   }
 
   /// \brief Get the previous node, or 0 for the list head.
   const NodeTy *getPrevNode() const {
-    NodeTy *Prev = this->getPrev();
+    const NodeTy *Prev = this->getPrev();
 
     // Check for sentinel.
     if (!Prev->getNext())
-      return 0;
+      return nullptr;
 
     return Prev;
   }
@@ -82,18 +82,18 @@ public:
 
     // Check for sentinel.
     if (!Next->getNext())
-      return 0;
+      return nullptr;
 
     return Next;
   }
 
   /// \brief Get the next node, or 0 for the list tail.
   const NodeTy *getNextNode() const {
-    NodeTy *Next = getNext();
+    const NodeTy *Next = getNext();
 
     // Check for sentinel.
     if (!Next->getNext())
-      return 0;
+      return nullptr;
 
     return Next;
   }