alloc_traits.h (allocator_traits::max_size()): LWG 2162: Add noexcept.

	* include/bits/alloc_traits.h (allocator_traits::max_size()): LWG
	2162: Add noexcept.

From-SVN: r199858

libstdc++-v3/ChangeLog

 2013-06-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
 
+	* include/bits/alloc_traits.h (allocator_traits::max_size()): LWG
+	2162: Add noexcept.
+
+2013-06-08  Jonathan Wakely  <jwakely.gcc@gmail.com>
+
 	* include/bits/stl_algo.h (is_permutation): Add overloads from N3671.
 	* include/bits/stl_algobase.h (equal, mismatch): Likewise.
 	* testsuite/25_algorithms/equal/1.cc: Remove duplicate test case.

libstdc++-v3/include/bits/alloc_traits.h

@@ -412,7 +412,7 @@ _GLIBCXX_ALLOC_TR_NESTED_TYPE(propagate_on_container_swap,
        *  Returns @c __a.max_size() if that expression is well-formed,
        *  otherwise returns @c numeric_limits<size_type>::max()
       */
-      static size_type max_size(const _Alloc& __a)
+      static size_type max_size(const _Alloc& __a) noexcept
       { return _S_max_size(__a); }
 
       /**