[libcxx] r178016 - Need one more swap overload for swapping two lvalue vector<bool>::reference's.

[Howard Hinnant]

Author: hhinnant
Date: Tue Mar 26 08:48:57 2013
New Revision: 178016

URL: http://llvm.org/viewvc/llvm-project?rev=178016&view=rev
Log:
Need one more swap overload for swapping two lvalue vector<bool>::reference's.

Modified:
    libcxx/trunk/include/__bit_reference
    libcxx/trunk/test/containers/sequences/vector.bool/swap.pass.cpp

Modified: libcxx/trunk/include/__bit_reference
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/__bit_reference?rev=178016&r1=178015&r2=178016&view=diff
==============================================================================
--- libcxx/trunk/include/__bit_reference (original)
+++ libcxx/trunk/include/__bit_reference Tue Mar 26 08:48:57 2013
@@ -81,6 +81,16 @@ class __bit_reference<_Cp, false>
 {
 };
 
+template <class _Cp>
+_LIBCPP_INLINE_VISIBILITY inline
+void
+swap(__bit_reference<_Cp> __x, __bit_reference<_Cp> __y) _NOEXCEPT
+{
+    bool __t = __x;
+    __x = __y;
+    __y = __t;
+}
+
 template <class _Cp, class _Dp>
 _LIBCPP_INLINE_VISIBILITY inline
 void

Modified: libcxx/trunk/test/containers/sequences/vector.bool/swap.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/containers/sequences/vector.bool/swap.pass.cpp?rev=178016&r1=178015&r2=178016&view=diff
==============================================================================
--- libcxx/trunk/test/containers/sequences/vector.bool/swap.pass.cpp (original)
+++ libcxx/trunk/test/containers/sequences/vector.bool/swap.pass.cpp Tue Mar 26 08:48:57 2013
@@ -51,4 +51,14 @@ int main()
         assert(v1.get_allocator() == A(2));
         assert(v2.get_allocator() == A(1));
     }
+    {
+        std::vector<bool> v(2);
+        std::vector<bool>::reference r1 = v[0];
+        std::vector<bool>::reference r2 = v[1];
+        r1 = true;
+        using std::swap;
+        swap(r1, r2);
+        assert(v[0] == false);
+        assert(v[1] == true);
+    }
 }