[llvm] r196768 - ADT: Implement MutableArrayRef::reverse_iterator

[David Majnemer]

Author: majnemer
Date: Mon Dec  9 03:04:00 2013
New Revision: 196768

URL: http://llvm.org/viewvc/llvm-project?rev=196768&view=rev
Log:
ADT: Implement MutableArrayRef::reverse_iterator

This adds rbegin/rend methods to MutableArrayRef, they will be used by a
follow-on commit in clang.

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

Modified: llvm/trunk/include/llvm/ADT/ArrayRef.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/ADT/ArrayRef.h?rev=196768&r1=196767&r2=196768&view=diff
==============================================================================
--- llvm/trunk/include/llvm/ADT/ArrayRef.h (original)
+++ llvm/trunk/include/llvm/ADT/ArrayRef.h Mon Dec  9 03:04:00 2013
@@ -185,6 +185,8 @@ namespace llvm {
   public:
     typedef T *iterator;
 
+    typedef std::reverse_iterator<iterator> reverse_iterator;
+
     /// Construct an empty MutableArrayRef.
     /*implicit*/ MutableArrayRef() : ArrayRef<T>() {}
 
@@ -219,6 +221,9 @@ namespace llvm {
     iterator begin() const { return data(); }
     iterator end() const { return data() + this->size(); }
 
+    reverse_iterator rbegin() const { return reverse_iterator(end()); }
+    reverse_iterator rend() const { return reverse_iterator(begin()); }
+
     /// front - Get the first element.
     T &front() const {
       assert(!this->empty());