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-rw-r--r--libstdc++-v3/ChangeLog5
-rw-r--r--libstdc++-v3/include/ext/alloc_traits.h2
2 files changed, 7 insertions, 0 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 516fc8f7ed6..1aeff2fa80f 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,10 @@
2012-04-22 Jonathan Wakely <jwakely.gcc@gmail.com>
+ * include/ext/alloc_traits.h (__alloc_traits::difference_type):
+ Define.
+
+2012-04-22 Jonathan Wakely <jwakely.gcc@gmail.com>
+
PR libstdc++/53027
* include/bits/ptr_traits.h (pointer_traits::rebind): Make public.
* testsuite/20_util/pointer_traits/requirements/typedefs.cc: Check
diff --git a/libstdc++-v3/include/ext/alloc_traits.h b/libstdc++-v3/include/ext/alloc_traits.h
index 4862636645e..b3e3af663a6 100644
--- a/libstdc++-v3/include/ext/alloc_traits.h
+++ b/libstdc++-v3/include/ext/alloc_traits.h
@@ -99,6 +99,7 @@ template<typename _Alloc>
typedef typename _Base_type::pointer pointer;
typedef typename _Base_type::const_pointer const_pointer;
typedef typename _Base_type::size_type size_type;
+ typedef typename _Base_type::difference_type difference_type;
// C++0x allocators do not define reference or const_reference
typedef value_type& reference;
typedef const value_type& const_reference;
@@ -170,6 +171,7 @@ template<typename _Alloc>
typedef typename _Alloc::reference reference;
typedef typename _Alloc::const_reference const_reference;
typedef typename _Alloc::size_type size_type;
+ typedef typename _Alloc::difference_type difference_type;
static pointer
allocate(_Alloc& __a, size_type __n)