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-rw-r--r--boost/smart_ptr/detail/array_allocator.hpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/boost/smart_ptr/detail/array_allocator.hpp b/boost/smart_ptr/detail/array_allocator.hpp
index 4f9dc2b..7147996 100644
--- a/boost/smart_ptr/detail/array_allocator.hpp
+++ b/boost/smart_ptr/detail/array_allocator.hpp
@@ -213,7 +213,7 @@ namespace boost {
typedef Y* pointer;
typedef const Y* const_pointer;
typedef std::size_t size_type;
- typedef ptrdiff_t difference_type;
+ typedef std::ptrdiff_t difference_type;
typedef Y& reference;
typedef const Y& const_reference;