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Bug 1127045 part 3 - Make nsTArray support reverse iterating. r=froydnj

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This commit is contained in:
Xidorn Quan 2015-02-04 19:07:32 +11:00
parent e7e326d1e6
commit 1aa524cf40
1 changed files with 11 additions and 0 deletions
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11
xpcom/glue/nsTArray.h
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@ -14,6 +14,7 @@
#include "mozilla/MathAlgorithms.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/Move.h"
#include "mozilla/ReverseIterator.h"
#include "mozilla/TypeTraits.h"
#include <string.h>
@ -770,6 +771,8 @@ public:
typedef nsTArray_SafeElementAtHelper<E, self_type> safeelementat_helper_type;
typedef elem_type* iterator;
typedef const elem_type* const_iterator;
typedef mozilla::ReverseIterator<elem_type*> reverse_iterator;
typedef mozilla::ReverseIterator<const elem_type*> const_reverse_iterator;
using safeelementat_helper_type::SafeElementAt;
using base_type::EmptyHdr;
@ -1001,6 +1004,14 @@ public:
const_iterator end() const { return Elements() + Length(); }
const_iterator cend() const { return end(); }
// Methods for reverse iterating.
reverse_iterator rbegin() { return reverse_iterator(end()); }
const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); }
const_reverse_iterator crbegin() const { return rbegin(); }
reverse_iterator rend() { return reverse_iterator(begin()); }
const_reverse_iterator rend() const { return const_reverse_iterator(begin()); }
const_reverse_iterator crend() const { return rend(); }
//
// Search methods
//