Merging r196768:

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r196768 | majnemer | 2013-12-09 01:04:00 -0800 (Mon, 09 Dec 2013) | 5 lines

ADT: Implement MutableArrayRef::reverse_iterator

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

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@196945 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/include/llvm/ADT/ArrayRef.h b/include/llvm/ADT/ArrayRef.h
index 61467e9..e5562c3 100644
--- a/include/llvm/ADT/ArrayRef.h
+++ b/include/llvm/ADT/ArrayRef.h
@@ -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());